LCOV - code coverage report
Current view: top level - src - force_fields_input.F (source / functions) Coverage Total Hit
Test: CP2K Regtests (git:71c3ab0) Lines: 92.7 % 1404 1302
Test Date: 2026-07-25 06:35:44 Functions: 92.3 % 39 36

            Line data    Source code
       1              : !--------------------------------------------------------------------------------------------------!
       2              : !   CP2K: A general program to perform molecular dynamics simulations                              !
       3              : !   Copyright 2000-2026 CP2K developers group <https://cp2k.org>                                   !
       4              : !                                                                                                  !
       5              : !   SPDX-License-Identifier: GPL-2.0-or-later                                                      !
       6              : !--------------------------------------------------------------------------------------------------!
       7              : 
       8              : ! **************************************************************************************************
       9              : !> \par History
      10              : !>      Subroutine input_torsions changed (DG) 05-Dec-2000
      11              : !>      Output formats changed (DG) 05-Dec-2000
      12              : !>      JGH (26-01-2002) : force field parameters stored in tables, not in
      13              : !>        matrices. Input changed to have parameters labeled by the position
      14              : !>        and not atom pairs (triples etc)
      15              : !>      Teo (11.2005) : Moved all information on force field  pair_potential to
      16              : !>                      a much lighter memory structure
      17              : !>      Teo 09.2006   : Split all routines force_field I/O in a separate file
      18              : !> \author CJM
      19              : ! **************************************************************************************************
      20              : MODULE force_fields_input
      21              :    USE ace_wrapper,                     ONLY: ace_model_initialize,&
      22              :                                               ace_model_type
      23              :    USE bibliography,                    ONLY: Clabaut2020,&
      24              :                                               Clabaut2021,&
      25              :                                               Siepmann1995,&
      26              :                                               Tersoff1988,&
      27              :                                               Tosi1964a,&
      28              :                                               Tosi1964b,&
      29              :                                               Yamada2000,&
      30              :                                               cite_reference
      31              :    USE cp_files,                        ONLY: discover_file
      32              :    USE cp_linked_list_input,            ONLY: cp_sll_val_next,&
      33              :                                               cp_sll_val_type
      34              :    USE cp_log_handling,                 ONLY: cp_get_default_logger,&
      35              :                                               cp_logger_type,&
      36              :                                               cp_to_string
      37              :    USE cp_output_handling,              ONLY: cp_print_key_finished_output,&
      38              :                                               cp_print_key_unit_nr
      39              :    USE cp_parser_methods,               ONLY: parser_get_next_line
      40              :    USE cp_parser_types,                 ONLY: cp_parser_type,&
      41              :                                               parser_create,&
      42              :                                               parser_release
      43              :    USE cp_units,                        ONLY: cp_unit_to_cp2k
      44              :    USE damping_dipole_types,            ONLY: damping_info_type
      45              :    USE force_field_kind_types,          ONLY: do_ff_amber,&
      46              :                                               do_ff_charmm,&
      47              :                                               do_ff_g87,&
      48              :                                               do_ff_g96,&
      49              :                                               do_ff_opls,&
      50              :                                               do_ff_undef,&
      51              :                                               legendre_data_type
      52              :    USE force_field_types,               ONLY: force_field_type,&
      53              :                                               input_info_type
      54              :    USE force_fields_util,               ONLY: get_generic_info
      55              :    USE input_section_types,             ONLY: section_vals_get,&
      56              :                                               section_vals_get_subs_vals,&
      57              :                                               section_vals_list_get,&
      58              :                                               section_vals_type,&
      59              :                                               section_vals_val_get
      60              :    USE input_val_types,                 ONLY: val_get,&
      61              :                                               val_type
      62              :    USE kinds,                           ONLY: default_path_length,&
      63              :                                               default_string_length,&
      64              :                                               dp
      65              :    USE mathconstants,                   ONLY: pi
      66              :    USE mathlib,                         ONLY: invert_matrix
      67              :    USE memory_utilities,                ONLY: reallocate
      68              :    USE message_passing,                 ONLY: mp_para_env_type
      69              :    USE pair_potential_types,            ONLY: &
      70              :         ace_type, allegro_type, b4_type, bm_type, deepmd_type, do_potential_single_allocation, &
      71              :         ea_type, eam_pot_type, ft_pot_type, ft_type, ftd_type, gal21_type, gal_type, gp_type, &
      72              :         gw_type, ip_type, ipbv_pot_type, lj_charmm_type, mace_type, nequip_pot_type, nequip_type, &
      73              :         no_potential_single_allocation, pair_potential_p_type, pair_potential_reallocate, &
      74              :         potential_single_allocation, siepmann_type, tab_pot_type, tab_type, tersoff_type, wl_type
      75              :    USE shell_potential_types,           ONLY: shell_p_create,&
      76              :                                               shell_p_type
      77              :    USE string_utilities,                ONLY: uppercase
      78              :    USE torch_api,                       ONLY: torch_allow_tf32,&
      79              :                                               torch_model_read_metadata
      80              : #include "./base/base_uses.f90"
      81              : 
      82              :    IMPLICIT NONE
      83              : 
      84              :    CHARACTER(len=*), PARAMETER, PRIVATE :: moduleN = 'force_fields_input'
      85              : 
      86              :    PRIVATE
      87              :    PUBLIC :: read_force_field_section, &
      88              :              read_lj_section, &
      89              :              read_wl_section, &
      90              :              read_gd_section, &
      91              :              read_gp_section, &
      92              :              read_chrg_section
      93              : 
      94              : CONTAINS
      95              : 
      96              : ! **************************************************************************************************
      97              : !> \brief Reads the force_field input section
      98              : !> \param ff_section ...
      99              : !> \param mm_section ...
     100              : !> \param ff_type ...
     101              : !> \param para_env ...
     102              : !> \author teo
     103              : ! **************************************************************************************************
     104        36918 :    SUBROUTINE read_force_field_section1(ff_section, mm_section, ff_type, para_env)
     105              :       TYPE(section_vals_type), POINTER                   :: ff_section, mm_section
     106              :       TYPE(force_field_type), INTENT(INOUT)              :: ff_type
     107              :       TYPE(mp_para_env_type), POINTER                    :: para_env
     108              : 
     109              :       CHARACTER(LEN=default_string_length), &
     110         2637 :          DIMENSION(:), POINTER                           :: atm_names
     111              :       INTEGER :: nace, nb4, nbends, nbm, nbmhft, nbmhftd, nbonds, nchg, ndeepmd, neam, ngal, &
     112              :          ngal21, ngd, ngp, nimpr, nipbv, nlj, nmace, nnequip, nopbend, nshell, nsiepmann, ntab, &
     113              :          ntersoff, ntors, ntot, nubs, nwl
     114              :       LOGICAL                                            :: explicit, unique_spline
     115              :       REAL(KIND=dp)                                      :: min_eps_spline_allowed
     116              :       TYPE(input_info_type), POINTER                     :: inp_info
     117              :       TYPE(section_vals_type), POINTER                   :: tmp_section, tmp_section2
     118              : 
     119              :       INTEGER::i
     120              : 
     121         2637 :       NULLIFY (tmp_section, tmp_section2)
     122         2637 :       inp_info => ff_type%inp_info
     123         2637 :       CALL section_vals_val_get(ff_section, "PARMTYPE", i_val=ff_type%ff_type)
     124         2637 :       CALL section_vals_val_get(ff_section, "EI_SCALE14", r_val=ff_type%ei_scale14)
     125         2637 :       CALL section_vals_val_get(ff_section, "VDW_SCALE14", r_val=ff_type%vdw_scale14)
     126         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%RCUT_NB", r_val=ff_type%rcut_nb)
     127         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%R0_NB", r_val=ff_type%rlow_nb)
     128         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%EPS_SPLINE", r_val=ff_type%eps_spline)
     129         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%EMAX_SPLINE", r_val=ff_type%emax_spline)
     130         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%EMAX_ACCURACY", r_val=ff_type%max_energy)
     131         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%NPOINTS", i_val=ff_type%npoints)
     132         2637 :       CALL section_vals_val_get(ff_section, "IGNORE_MISSING_CRITICAL_PARAMS", l_val=ff_type%ignore_missing_critical)
     133         2637 :       CPASSERT(ff_type%max_energy <= ff_type%emax_spline)
     134              :       ! Read the parameter file name only if the force field type requires it..
     135         3547 :       SELECT CASE (ff_type%ff_type)
     136              :       CASE (do_ff_charmm, do_ff_amber, do_ff_g96, do_ff_g87)
     137          910 :          CALL section_vals_val_get(ff_section, "PARM_FILE_NAME", c_val=ff_type%ff_file_name)
     138              : 
     139          910 :          IF (TRIM(ff_type%ff_file_name) == "") THEN
     140            0 :             CPABORT("Force Field Parameter's filename is empty! Please check your input file.")
     141              :          END IF
     142              : 
     143              :       CASE (do_ff_undef)
     144              :          ! Do Nothing
     145              :       CASE DEFAULT
     146         2637 :          CPABORT("Force field type not implemented")
     147              :       END SELECT
     148              :       ! Numerical Accuracy:
     149              :       ! the factors here should depend on the energy and on the shape of each potential mapped
     150              :       ! with splines. this would make everything un-necessarily complicated. Let's just be safe
     151              :       ! and assume that we cannot achieve an accuracy on the spline 2 orders of magnitude more
     152              :       ! than the smallest representable number (taking into account also the max_energy for the
     153              :       ! spline generation
     154         2637 :       min_eps_spline_allowed = 20.0_dp*MAX(ff_type%max_energy, 10.0_dp)*EPSILON(0.0_dp)
     155         2637 :       IF (ff_type%eps_spline < min_eps_spline_allowed) THEN
     156              :          CALL cp_warn(__LOCATION__, &
     157              :                       "Requested spline accuracy ("//TRIM(cp_to_string(ff_type%eps_spline))//" ) "// &
     158              :                       "is smaller than the minimum value allowed ("//TRIM(cp_to_string(min_eps_spline_allowed))// &
     159              :                       " ) with the present machine precision ("//TRIM(cp_to_string(EPSILON(0.0_dp)))//" ). "// &
     160            0 :                       "New EPS_SPLINE value ("//TRIM(cp_to_string(min_eps_spline_allowed))//" ). ")
     161            0 :          ff_type%eps_spline = min_eps_spline_allowed
     162              :       END IF
     163         2637 :       CALL section_vals_val_get(ff_section, "SHIFT_CUTOFF", l_val=ff_type%shift_cutoff)
     164         2637 :       CALL section_vals_val_get(ff_section, "SPLINE%UNIQUE_SPLINE", l_val=unique_spline)
     165              :       ! Single spline
     166         2637 :       potential_single_allocation = no_potential_single_allocation
     167         2637 :       IF (unique_spline) potential_single_allocation = do_potential_single_allocation
     168              : 
     169         2637 :       CALL section_vals_val_get(ff_section, "MULTIPLE_POTENTIAL", l_val=ff_type%multiple_potential)
     170         2637 :       CALL section_vals_val_get(ff_section, "DO_NONBONDED", l_val=ff_type%do_nonbonded)
     171         2637 :       CALL section_vals_val_get(ff_section, "DO_ELECTROSTATICS", l_val=ff_type%do_electrostatics)
     172         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "NONBONDED")
     173         2637 :       CALL section_vals_get(tmp_section, explicit=explicit)
     174         2637 :       IF (explicit .AND. ff_type%do_nonbonded) THEN
     175         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "LENNARD-JONES")
     176         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nlj)
     177         1727 :          ntot = 0
     178         1727 :          IF (explicit) THEN
     179          978 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nlj, lj_charmm=.TRUE.)
     180          978 :             CALL read_lj_section(inp_info%nonbonded, tmp_section2, ntot)
     181              :          END IF
     182              : 
     183         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "WILLIAMS")
     184         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nwl)
     185         1727 :          ntot = nlj
     186         1727 :          IF (explicit) THEN
     187          359 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nwl, williams=.TRUE.)
     188          359 :             CALL read_wl_section(inp_info%nonbonded, tmp_section2, ntot)
     189              :          END IF
     190              : 
     191         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "EAM")
     192         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=neam)
     193         1727 :          ntot = nlj + nwl
     194         1727 :          IF (explicit) THEN
     195           12 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + neam, eam=.TRUE.)
     196           12 :             CALL read_eam_section(inp_info%nonbonded, tmp_section2, ntot, para_env, mm_section)
     197              :          END IF
     198              : 
     199         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "GOODWIN")
     200         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ngd)
     201         1727 :          ntot = nlj + nwl + neam
     202         1727 :          IF (explicit) THEN
     203            0 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ngd, goodwin=.TRUE.)
     204            0 :             CALL read_gd_section(inp_info%nonbonded, tmp_section2, ntot)
     205              :          END IF
     206              : 
     207         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "IPBV")
     208         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nipbv)
     209         1727 :          ntot = nlj + nwl + neam + ngd
     210         1727 :          IF (explicit) THEN
     211           16 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nipbv, ipbv=.TRUE.)
     212           16 :             CALL read_ipbv_section(inp_info%nonbonded, tmp_section2, ntot)
     213              :          END IF
     214              : 
     215         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "BMHFT")
     216         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nbmhft)
     217         1727 :          ntot = nlj + nwl + neam + ngd + nipbv
     218         1727 :          IF (explicit) THEN
     219            4 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nbmhft, bmhft=.TRUE.)
     220            4 :             CALL read_bmhft_section(inp_info%nonbonded, tmp_section2, ntot)
     221              :          END IF
     222              : 
     223         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "BMHFTD")
     224         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nbmhftd)
     225         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft
     226         1727 :          IF (explicit) THEN
     227           18 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nbmhftd, bmhftd=.TRUE.)
     228           18 :             CALL read_bmhftd_section(inp_info%nonbonded, tmp_section2, ntot)
     229              :          END IF
     230              : 
     231         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "BUCK4RANGES")
     232         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nb4)
     233         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd
     234         1727 :          IF (explicit) THEN
     235          252 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nb4, buck4r=.TRUE.)
     236          252 :             CALL read_b4_section(inp_info%nonbonded, tmp_section2, ntot)
     237              :          END IF
     238              : 
     239         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "BUCKMORSE")
     240         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nbm)
     241         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4
     242         1727 :          IF (explicit) THEN
     243            6 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nbm, buckmo=.TRUE.)
     244            6 :             CALL read_bm_section(inp_info%nonbonded, tmp_section2, ntot)
     245              :          END IF
     246              : 
     247         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "GENPOT")
     248         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ngp)
     249         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm
     250         1727 :          IF (explicit) THEN
     251          312 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ngp, gp=.TRUE.)
     252          312 :             CALL read_gp_section(inp_info%nonbonded, tmp_section2, ntot)
     253              :          END IF
     254         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "TERSOFF")
     255         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ntersoff)
     256         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp
     257         1727 :          IF (explicit) THEN
     258           38 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ntersoff, tersoff=.TRUE.)
     259           38 :             CALL read_tersoff_section(inp_info%nonbonded, tmp_section2, ntot, tmp_section2)
     260              :          END IF
     261              : 
     262         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "GAL19")
     263         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ngal)
     264         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff
     265         1727 :          IF (explicit) THEN
     266            1 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ngal, gal=.TRUE.)
     267            1 :             CALL read_gal_section(inp_info%nonbonded, tmp_section2, ntot, tmp_section2)
     268              :          END IF
     269              : 
     270         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "GAL21")
     271         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ngal21)
     272         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + ngal
     273         1727 :          IF (explicit) THEN
     274            1 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ngal21, gal21=.TRUE.)
     275            1 :             CALL read_gal21_section(inp_info%nonbonded, tmp_section2, ntot, tmp_section2)
     276              :          END IF
     277              : 
     278         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "SIEPMANN")
     279         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nsiepmann)
     280         1727 :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + ngal + ngal21
     281         1727 :          IF (explicit) THEN
     282            5 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nsiepmann, siepmann=.TRUE.)
     283            5 :             CALL read_siepmann_section(inp_info%nonbonded, tmp_section2, ntot, tmp_section2)
     284              :          END IF
     285              : 
     286         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "nequip")
     287         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nnequip)
     288              :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + &
     289         1727 :                 ngal + ngal21 + nsiepmann
     290         1727 :          IF (explicit) THEN
     291              :             ! avoid repeating the nequip section for each pair
     292            4 :             CALL section_vals_val_get(tmp_section2, "ATOMS", c_vals=atm_names)
     293            4 :             nnequip = nnequip - 1 + SIZE(atm_names) + (SIZE(atm_names)*SIZE(atm_names) - SIZE(atm_names))/2
     294            4 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nnequip, nequip=.TRUE.)
     295            4 :             CALL read_nequip_section(inp_info%nonbonded, tmp_section2, ntot)
     296              :          END IF
     297              : 
     298         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "TABPOT")
     299         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ntab)
     300              :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + &
     301         1727 :                 ngal + ngal21 + nsiepmann + nnequip
     302         1727 :          IF (explicit) THEN
     303            8 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ntab, tab=.TRUE.)
     304            8 :             CALL read_tabpot_section(inp_info%nonbonded, tmp_section2, ntot, para_env, mm_section)
     305              :          END IF
     306              : 
     307         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "DEEPMD")
     308         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ndeepmd)
     309              :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + &
     310         1727 :                 ngal + ngal21 + nsiepmann + nnequip + ntab
     311         1727 :          IF (explicit) THEN
     312              :             ! avoid repeating the deepmd section for each pair
     313            2 :             CALL section_vals_val_get(tmp_section2, "ATOMS", c_vals=atm_names)
     314            2 :             ndeepmd = ndeepmd - 1 + SIZE(atm_names) + (SIZE(atm_names)*SIZE(atm_names) - SIZE(atm_names))/2
     315            2 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + ndeepmd, deepmd=.TRUE.)
     316            2 :             CALL read_deepmd_section(inp_info%nonbonded, tmp_section2, ntot)
     317              :          END IF
     318              : 
     319         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "ACE")
     320         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nace)
     321              :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + &
     322         1727 :                 ngal + ngal21 + nsiepmann + nnequip + ntab + ndeepmd
     323         1727 :          IF (explicit) THEN
     324              :             ! avoid repeating the ace section for each pair
     325            6 :             CALL section_vals_val_get(tmp_section2, "ATOMS", c_vals=atm_names)
     326            6 :             nace = nace - 1 + SIZE(atm_names) + (SIZE(atm_names)*SIZE(atm_names) - SIZE(atm_names))/2
     327            6 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nace, ace=.TRUE.)
     328            6 :             CALL read_ace_section(inp_info%nonbonded, tmp_section2, ntot)
     329              :          END IF
     330              : 
     331         1727 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "MACE")
     332         1727 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nmace)
     333              :          ntot = nlj + nwl + neam + ngd + nipbv + nbmhft + nbmhftd + nb4 + nbm + ngp + ntersoff + &
     334         1727 :                 ngal + ngal21 + nsiepmann + nnequip + ntab + ndeepmd + nace
     335         1727 :          IF (explicit) THEN
     336              :             ! avoid repeating the mace section for each pair
     337            2 :             CALL section_vals_val_get(tmp_section2, "ATOMS", c_vals=atm_names)
     338            2 :             nmace = nmace - 1 + SIZE(atm_names) + (SIZE(atm_names)*SIZE(atm_names) - SIZE(atm_names))/2
     339              :             ! MACE reuses the nequip_pot_type storage (set%nequip), hence nequip=.TRUE. here
     340            2 :             CALL pair_potential_reallocate(inp_info%nonbonded, 1, ntot + nmace, nequip=.TRUE.)
     341            2 :             CALL read_mace_section(inp_info%nonbonded, tmp_section2, ntot)
     342              :          END IF
     343              : 
     344              :       END IF
     345              : 
     346         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "NONBONDED14")
     347         2637 :       CALL section_vals_get(tmp_section, explicit=explicit)
     348         2637 :       IF (explicit .AND. ff_type%do_nonbonded) THEN
     349          276 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "LENNARD-JONES")
     350          276 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nlj)
     351          276 :          ntot = 0
     352          276 :          IF (explicit) THEN
     353           12 :             CALL pair_potential_reallocate(inp_info%nonbonded14, 1, ntot + nlj, lj_charmm=.TRUE.)
     354           12 :             CALL read_lj_section(inp_info%nonbonded14, tmp_section2, ntot)
     355              :          END IF
     356          276 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "WILLIAMS")
     357          276 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=nwl)
     358          276 :          ntot = nlj
     359          276 :          IF (explicit) THEN
     360            0 :             CALL pair_potential_reallocate(inp_info%nonbonded14, 1, ntot + nwl, williams=.TRUE.)
     361            0 :             CALL read_wl_section(inp_info%nonbonded14, tmp_section2, ntot)
     362              :          END IF
     363          276 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "GOODWIN")
     364          276 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ngd)
     365          276 :          ntot = nlj + nwl
     366          276 :          IF (explicit) THEN
     367            0 :             CALL pair_potential_reallocate(inp_info%nonbonded14, 1, ntot + ngd, goodwin=.TRUE.)
     368            0 :             CALL read_gd_section(inp_info%nonbonded14, tmp_section2, ntot)
     369              :          END IF
     370          276 :          tmp_section2 => section_vals_get_subs_vals(tmp_section, "GENPOT")
     371          276 :          CALL section_vals_get(tmp_section2, explicit=explicit, n_repetition=ngp)
     372          276 :          ntot = nlj + nwl + ngd
     373          276 :          IF (explicit) THEN
     374          264 :             CALL pair_potential_reallocate(inp_info%nonbonded14, 1, ntot + ngp, gp=.TRUE.)
     375          264 :             CALL read_gp_section(inp_info%nonbonded14, tmp_section2, ntot)
     376              :          END IF
     377              :       END IF
     378              : 
     379         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "CHARGE")
     380         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nchg)
     381         2637 :       IF (explicit) THEN
     382         2067 :          ntot = 0
     383         2067 :          CALL reallocate(inp_info%charge_atm, 1, nchg)
     384         2067 :          CALL reallocate(inp_info%charge, 1, nchg)
     385         2067 :          CALL read_chrg_section(inp_info%charge_atm, inp_info%charge, tmp_section, ntot)
     386              :       END IF
     387         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "DIPOLE")
     388         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nchg)
     389         2637 :       IF (explicit) THEN
     390           34 :          ntot = 0
     391           34 :          CALL reallocate(inp_info%apol_atm, 1, nchg)
     392           34 :          CALL reallocate(inp_info%apol, 1, nchg)
     393              :          CALL read_apol_section(inp_info%apol_atm, inp_info%apol, inp_info%damping_list, &
     394           34 :                                 tmp_section, ntot)
     395              :       END IF
     396         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "QUADRUPOLE")
     397         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nchg)
     398         2637 :       IF (explicit) THEN
     399            0 :          ntot = 0
     400            0 :          CALL reallocate(inp_info%cpol_atm, 1, nchg)
     401            0 :          CALL reallocate(inp_info%cpol, 1, nchg)
     402            0 :          CALL read_cpol_section(inp_info%cpol_atm, inp_info%cpol, tmp_section, ntot)
     403              :       END IF
     404         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "SHELL")
     405         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nshell)
     406         2637 :       IF (explicit) THEN
     407          252 :          ntot = 0
     408          252 :          CALL shell_p_create(inp_info%shell_list, nshell)
     409          252 :          CALL read_shell_section(inp_info%shell_list, tmp_section, ntot)
     410              :       END IF
     411              : 
     412         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "BOND")
     413         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nbonds)
     414         2637 :       IF (explicit) THEN
     415          975 :          ntot = 0
     416          975 :          CALL reallocate(inp_info%bond_kind, 1, nbonds)
     417          975 :          CALL reallocate(inp_info%bond_a, 1, nbonds)
     418          975 :          CALL reallocate(inp_info%bond_b, 1, nbonds)
     419          975 :          CALL reallocate(inp_info%bond_k, 1, 3, 1, nbonds)
     420          975 :          CALL reallocate(inp_info%bond_r0, 1, nbonds)
     421          975 :          CALL reallocate(inp_info%bond_cs, 1, nbonds)
     422              :          CALL read_bonds_section(inp_info%bond_kind, inp_info%bond_a, inp_info%bond_b, inp_info%bond_k, &
     423          975 :                                  inp_info%bond_r0, inp_info%bond_cs, tmp_section, ntot)
     424              :       END IF
     425         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "BEND")
     426         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nbends)
     427         2637 :       IF (explicit) THEN
     428          939 :          ntot = 0
     429          939 :          CALL reallocate(inp_info%bend_kind, 1, nbends)
     430          939 :          CALL reallocate(inp_info%bend_a, 1, nbends)
     431          939 :          CALL reallocate(inp_info%bend_b, 1, nbends)
     432          939 :          CALL reallocate(inp_info%bend_c, 1, nbends)
     433          939 :          CALL reallocate(inp_info%bend_k, 1, nbends)
     434          939 :          CALL reallocate(inp_info%bend_theta0, 1, nbends)
     435          939 :          CALL reallocate(inp_info%bend_cb, 1, nbends)
     436          939 :          CALL reallocate(inp_info%bend_r012, 1, nbends)
     437          939 :          CALL reallocate(inp_info%bend_r032, 1, nbends)
     438          939 :          CALL reallocate(inp_info%bend_kbs12, 1, nbends)
     439          939 :          CALL reallocate(inp_info%bend_kbs32, 1, nbends)
     440          939 :          CALL reallocate(inp_info%bend_kss, 1, nbends)
     441          939 :          IF (ASSOCIATED(inp_info%bend_legendre)) THEN
     442            0 :             DO i = 1, SIZE(inp_info%bend_legendre)
     443            0 :                IF (ASSOCIATED(inp_info%bend_legendre(i)%coeffs)) THEN
     444            0 :                   DEALLOCATE (inp_info%bend_legendre(i)%coeffs)
     445            0 :                   NULLIFY (inp_info%bend_legendre(i)%coeffs)
     446              :                END IF
     447              :             END DO
     448            0 :             DEALLOCATE (inp_info%bend_legendre)
     449              :             NULLIFY (inp_info%bend_legendre)
     450              :          END IF
     451         4938 :          ALLOCATE (inp_info%bend_legendre(1:nbends))
     452         3060 :          DO i = 1, SIZE(inp_info%bend_legendre(1:nbends))
     453         2121 :             NULLIFY (inp_info%bend_legendre(i)%coeffs)
     454         3060 :             inp_info%bend_legendre(i)%order = 0
     455              :          END DO
     456              :          CALL read_bends_section(inp_info%bend_kind, inp_info%bend_a, inp_info%bend_b, inp_info%bend_c, &
     457              :                                  inp_info%bend_k, inp_info%bend_theta0, inp_info%bend_cb, &
     458              :                                  inp_info%bend_r012, inp_info%bend_r032, inp_info%bend_kbs12, &
     459              :                                  inp_info%bend_kbs32, inp_info%bend_kss, &
     460          939 :                                  inp_info%bend_legendre, tmp_section, ntot)
     461              :       END IF
     462         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "BEND")
     463         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nubs)
     464         2637 :       IF (explicit) THEN
     465          939 :          ntot = 0
     466          939 :          CALL reallocate(inp_info%ub_kind, 1, nubs)
     467          939 :          CALL reallocate(inp_info%ub_a, 1, nubs)
     468          939 :          CALL reallocate(inp_info%ub_b, 1, nubs)
     469          939 :          CALL reallocate(inp_info%ub_c, 1, nubs)
     470          939 :          CALL reallocate(inp_info%ub_k, 1, 3, 1, nubs)
     471          939 :          CALL reallocate(inp_info%ub_r0, 1, nubs)
     472              :          CALL read_ubs_section(inp_info%ub_kind, inp_info%ub_a, inp_info%ub_b, inp_info%ub_c, &
     473          939 :                                inp_info%ub_k, inp_info%ub_r0, tmp_section, ntot)
     474              :       END IF
     475         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "TORSION")
     476         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=ntors)
     477         2637 :       IF (explicit) THEN
     478            6 :          ntot = 0
     479            6 :          CALL reallocate(inp_info%torsion_kind, 1, ntors)
     480            6 :          CALL reallocate(inp_info%torsion_a, 1, ntors)
     481            6 :          CALL reallocate(inp_info%torsion_b, 1, ntors)
     482            6 :          CALL reallocate(inp_info%torsion_c, 1, ntors)
     483            6 :          CALL reallocate(inp_info%torsion_d, 1, ntors)
     484            6 :          CALL reallocate(inp_info%torsion_k, 1, ntors)
     485            6 :          CALL reallocate(inp_info%torsion_m, 1, ntors)
     486            6 :          CALL reallocate(inp_info%torsion_phi0, 1, ntors)
     487              :          CALL read_torsions_section(inp_info%torsion_kind, inp_info%torsion_a, inp_info%torsion_b, &
     488              :                                     inp_info%torsion_c, inp_info%torsion_d, inp_info%torsion_k, inp_info%torsion_phi0, &
     489            6 :                                     inp_info%torsion_m, tmp_section, ntot)
     490              :       END IF
     491              : 
     492         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "IMPROPER")
     493         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nimpr)
     494         2637 :       IF (explicit) THEN
     495            8 :          ntot = 0
     496            8 :          CALL reallocate(inp_info%impr_kind, 1, nimpr)
     497            8 :          CALL reallocate(inp_info%impr_a, 1, nimpr)
     498            8 :          CALL reallocate(inp_info%impr_b, 1, nimpr)
     499            8 :          CALL reallocate(inp_info%impr_c, 1, nimpr)
     500            8 :          CALL reallocate(inp_info%impr_d, 1, nimpr)
     501            8 :          CALL reallocate(inp_info%impr_k, 1, nimpr)
     502            8 :          CALL reallocate(inp_info%impr_phi0, 1, nimpr)
     503              :          CALL read_improper_section(inp_info%impr_kind, inp_info%impr_a, inp_info%impr_b, &
     504              :                                     inp_info%impr_c, inp_info%impr_d, inp_info%impr_k, inp_info%impr_phi0, &
     505            8 :                                     tmp_section, ntot)
     506              :       END IF
     507              : 
     508         2637 :       tmp_section => section_vals_get_subs_vals(ff_section, "OPBEND")
     509         2637 :       CALL section_vals_get(tmp_section, explicit=explicit, n_repetition=nopbend)
     510         2637 :       IF (explicit) THEN
     511            2 :          ntot = 0
     512            2 :          CALL reallocate(inp_info%opbend_kind, 1, nopbend)
     513            2 :          CALL reallocate(inp_info%opbend_a, 1, nopbend)
     514            2 :          CALL reallocate(inp_info%opbend_b, 1, nopbend)
     515            2 :          CALL reallocate(inp_info%opbend_c, 1, nopbend)
     516            2 :          CALL reallocate(inp_info%opbend_d, 1, nopbend)
     517            2 :          CALL reallocate(inp_info%opbend_k, 1, nopbend)
     518            2 :          CALL reallocate(inp_info%opbend_phi0, 1, nopbend)
     519              :          CALL read_opbend_section(inp_info%opbend_kind, inp_info%opbend_a, inp_info%opbend_b, &
     520              :                                   inp_info%opbend_c, inp_info%opbend_d, inp_info%opbend_k, inp_info%opbend_phi0, &
     521            2 :                                   tmp_section, ntot)
     522              :       END IF
     523              : 
     524         2637 :    END SUBROUTINE read_force_field_section1
     525              : 
     526              : ! **************************************************************************************************
     527              : !> \brief Set up of the IPBV force fields
     528              : !> \param at1 ...
     529              : !> \param at2 ...
     530              : !> \param ipbv ...
     531              : !> \author teo
     532              : ! **************************************************************************************************
     533           48 :    SUBROUTINE set_IPBV_ff(at1, at2, ipbv)
     534              :       CHARACTER(LEN=*), INTENT(IN)                       :: at1, at2
     535              :       TYPE(ipbv_pot_type), POINTER                       :: ipbv
     536              : 
     537           48 :       IF ((at1(1:1) == 'O') .AND. (at2(1:1) == 'O')) THEN
     538           16 :          ipbv%rcore = 0.9_dp ! a.u.
     539           16 :          ipbv%m = -1.2226442563398141E+11_dp ! Kelvin/a.u.
     540           16 :          ipbv%b = 1.1791292385486696E+11_dp ! Hartree
     541              : 
     542              :          ! Hartree*a.u.^2
     543           16 :          ipbv%a(2) = 4.786380682394_dp
     544           16 :          ipbv%a(3) = -1543.407053545_dp
     545           16 :          ipbv%a(4) = 88783.31188529_dp
     546           16 :          ipbv%a(5) = -2361200.155376_dp
     547           16 :          ipbv%a(6) = 35940504.84679_dp
     548           16 :          ipbv%a(7) = -339762743.6358_dp
     549           16 :          ipbv%a(8) = 2043874926.466_dp
     550           16 :          ipbv%a(9) = -7654856796.383_dp
     551           16 :          ipbv%a(10) = 16195251405.65_dp
     552           16 :          ipbv%a(11) = -13140392992.18_dp
     553           16 :          ipbv%a(12) = -9285572894.245_dp
     554           16 :          ipbv%a(13) = 8756947519.029_dp
     555           16 :          ipbv%a(14) = 15793297761.67_dp
     556           16 :          ipbv%a(15) = 12917180227.21_dp
     557           32 :       ELSE IF (((at1(1:1) == 'O') .AND. (at2(1:1) == 'H')) .OR. &
     558              :                ((at1(1:1) == 'H') .AND. (at2(1:1) == 'O'))) THEN
     559              : 
     560           16 :          ipbv%rcore = 2.95_dp ! a.u.
     561              : 
     562           16 :          ipbv%m = -0.004025691139759147_dp ! Hartree/a.u.
     563           16 :          ipbv%b = -2.193731138097428_dp ! Hartree
     564              :          ! Hartree*a.u.^2
     565           16 :          ipbv%a(2) = -195.7716013277_dp
     566           16 :          ipbv%a(3) = 15343.78613395_dp
     567           16 :          ipbv%a(4) = -530864.4586516_dp
     568           16 :          ipbv%a(5) = 10707934.39058_dp
     569           16 :          ipbv%a(6) = -140099704.7890_dp
     570           16 :          ipbv%a(7) = 1250943273.785_dp
     571           16 :          ipbv%a(8) = -7795458330.676_dp
     572           16 :          ipbv%a(9) = 33955897217.31_dp
     573           16 :          ipbv%a(10) = -101135640744.0_dp
     574           16 :          ipbv%a(11) = 193107995718.7_dp
     575           16 :          ipbv%a(12) = -193440560940.0_dp
     576           16 :          ipbv%a(13) = -4224406093.918E0_dp
     577           16 :          ipbv%a(14) = 217192386506.5E0_dp
     578           16 :          ipbv%a(15) = -157581228915.5_dp
     579           16 :       ELSE IF ((at1(1:1) == 'H') .AND. (at2(1:1) == 'H')) THEN
     580           16 :          ipbv%rcore = 3.165_dp ! a.u.
     581           16 :          ipbv%m = 0.002639704108787555_dp ! Hartree/a.u.
     582           16 :          ipbv%b = -0.2735482611857583_dp ! Hartree
     583              :          ! Hartree*a.u.^2
     584           16 :          ipbv%a(2) = -26.29456010782_dp
     585           16 :          ipbv%a(3) = 2373.352548248_dp
     586           16 :          ipbv%a(4) = -93880.43551360_dp
     587           16 :          ipbv%a(5) = 2154624.884809_dp
     588           16 :          ipbv%a(6) = -31965151.34955_dp
     589           16 :          ipbv%a(7) = 322781785.3278_dp
     590           16 :          ipbv%a(8) = -2271097368.668_dp
     591           16 :          ipbv%a(9) = 11169163192.90_dp
     592           16 :          ipbv%a(10) = -37684457778.47_dp
     593           16 :          ipbv%a(11) = 82562104256.03_dp
     594           16 :          ipbv%a(12) = -100510435213.4_dp
     595           16 :          ipbv%a(13) = 24570342714.65E0_dp
     596           16 :          ipbv%a(14) = 88766181532.94E0_dp
     597           16 :          ipbv%a(15) = -79705131323.98_dp
     598              :       ELSE
     599            0 :          CPABORT("IPBV only for WATER")
     600              :       END IF
     601           48 :    END SUBROUTINE set_IPBV_ff
     602              : 
     603              : ! **************************************************************************************************
     604              : !> \brief Set up of the BMHFT force fields
     605              : !> \param at1 ...
     606              : !> \param at2 ...
     607              : !> \param ft ...
     608              : !> \author teo
     609              : ! **************************************************************************************************
     610           12 :    SUBROUTINE set_BMHFT_ff(at1, at2, ft)
     611              :       CHARACTER(LEN=*), INTENT(IN)                       :: at1, at2
     612              :       TYPE(ft_pot_type), POINTER                         :: ft
     613              : 
     614           12 :       ft%b = cp_unit_to_cp2k(3.1545_dp, "angstrom^-1")
     615           12 :       IF ((at1(1:2) == 'NA') .AND. (at2(1:2) == 'NA')) THEN
     616            4 :          ft%a = cp_unit_to_cp2k(424.097_dp, "eV")
     617            4 :          ft%c = cp_unit_to_cp2k(1.05_dp, "eV*angstrom^6")
     618            4 :          ft%d = cp_unit_to_cp2k(0.499_dp, "eV*angstrom^8")
     619            8 :       ELSE IF (((at1(1:2) == 'NA') .AND. (at2(1:2) == 'CL')) .OR. &
     620              :                ((at1(1:2) == 'CL') .AND. (at2(1:2) == 'NA'))) THEN
     621              : 
     622            4 :          ft%a = cp_unit_to_cp2k(1256.31_dp, "eV")
     623            4 :          ft%c = cp_unit_to_cp2k(7.00_dp, "eV*angstrom^6")
     624            4 :          ft%d = cp_unit_to_cp2k(8.676_dp, "eV*angstrom^8")
     625            4 :       ELSE IF ((at1(1:2) == 'CL') .AND. (at2(1:2) == 'CL')) THEN
     626            4 :          ft%a = cp_unit_to_cp2k(3488.998_dp, "eV")
     627            4 :          ft%c = cp_unit_to_cp2k(72.50_dp, "eV*angstrom^6")
     628            4 :          ft%d = cp_unit_to_cp2k(145.427_dp, "eV*angstrom^8")
     629              :       ELSE
     630            0 :          CPABORT("BMHFT only for NaCl")
     631              :       END IF
     632              : 
     633           12 :    END SUBROUTINE set_BMHFT_ff
     634              : 
     635              : ! **************************************************************************************************
     636              : !> \brief Set up of the BMHFTD force fields
     637              : !> \author Mathieu Salanne 05.2010
     638              : ! **************************************************************************************************
     639            0 :    SUBROUTINE set_BMHFTD_ff()
     640              : 
     641            0 :       CPABORT("No default parameters present for BMHFTD")
     642              : 
     643            0 :    END SUBROUTINE set_BMHFTD_ff
     644              : 
     645              : ! **************************************************************************************************
     646              : !> \brief Reads the EAM section
     647              : !> \param nonbonded ...
     648              : !> \param section ...
     649              : !> \param start ...
     650              : !> \param para_env ...
     651              : !> \param mm_section ...
     652              : !> \author teo
     653              : ! **************************************************************************************************
     654           12 :    SUBROUTINE read_eam_section(nonbonded, section, start, para_env, mm_section)
     655              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     656              :       TYPE(section_vals_type), POINTER                   :: section
     657              :       INTEGER, INTENT(IN)                                :: start
     658              :       TYPE(mp_para_env_type), POINTER                    :: para_env
     659              :       TYPE(section_vals_type), POINTER                   :: mm_section
     660              : 
     661              :       CHARACTER(LEN=default_string_length), &
     662           12 :          DIMENSION(:), POINTER                           :: atm_names
     663              :       INTEGER                                            :: isec, n_items
     664              : 
     665           12 :       CALL section_vals_get(section, n_repetition=n_items)
     666           32 :       DO isec = 1, n_items
     667           20 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
     668              : 
     669           40 :          nonbonded%pot(start + isec)%pot%type = ea_type
     670           20 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
     671           20 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
     672           20 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
     673           20 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
     674              :          CALL section_vals_val_get(section, "PARM_FILE_NAME", i_rep_section=isec, &
     675           20 :                                    c_val=nonbonded%pot(start + isec)%pot%set(1)%eam%eam_file_name)
     676           20 :          CALL read_eam_data(nonbonded%pot(start + isec)%pot%set(1)%eam, para_env, mm_section)
     677           32 :          nonbonded%pot(start + isec)%pot%rcutsq = nonbonded%pot(start + isec)%pot%set(1)%eam%acutal**2
     678              :       END DO
     679           12 :    END SUBROUTINE read_eam_section
     680              : 
     681              : ! **************************************************************************************
     682              : !> \brief Reads the ACE section
     683              : !> \param nonbonded ...
     684              : !> \param section ...
     685              : !> \param start ...
     686              : ! **************************************************************************************************
     687            6 :    SUBROUTINE read_ace_section(nonbonded, section, start)
     688              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     689              :       TYPE(section_vals_type), POINTER                   :: section
     690              :       INTEGER, INTENT(IN)                                :: start
     691              : 
     692            6 :       CHARACTER(LEN=2), ALLOCATABLE, DIMENSION(:)        :: ace_atype_symbol
     693              :       CHARACTER(LEN=default_path_length)                 :: ace_filename
     694              :       CHARACTER(LEN=default_string_length)               :: ace_file_name
     695              :       CHARACTER(LEN=default_string_length), &
     696            6 :          DIMENSION(:), POINTER                           :: atm_names
     697              :       INTEGER                                            :: ace_ntype, isec, jsec, n_items
     698            6 :       REAL(KIND=dp), ALLOCATABLE, DIMENSION(:, :)        :: rcutall
     699            6 :       TYPE(ace_model_type)                               :: model
     700              : 
     701              :       n_items = 1
     702            6 :       isec = 1
     703            6 :       n_items = isec*n_items
     704            6 :       CALL section_vals_val_get(section, "ATOMS", c_vals=atm_names)
     705              : 
     706            6 :       ace_ntype = SIZE(atm_names)
     707           30 :       ALLOCATE (ace_atype_symbol(ace_ntype), rcutall(ace_ntype, ace_ntype))
     708           18 :       DO isec = 1, ace_ntype
     709           18 :          ace_atype_symbol(isec) = atm_names(isec) (1:2)
     710              :       END DO
     711            6 :       CALL section_vals_val_get(section, "POT_FILE_NAME", c_val=ace_file_name)
     712              : 
     713            6 :       ace_filename = discover_file(ace_file_name)
     714              : 
     715              : #if defined(__ACE)
     716              :       ! need ace_model_initialize()  here somewhere to get rcut
     717              :       CALL ace_model_initialize(ntypec=ace_ntype, symbolc=ace_atype_symbol, &
     718            6 :                                 fname=TRIM(ace_filename), rcutc=rcutall, model=model)
     719              : #else
     720              :       CPABORT("CP2K was compiled without ACE library.")
     721              : #endif
     722              : 
     723           18 :       DO isec = 1, SIZE(atm_names)
     724           36 :          DO jsec = isec, SIZE(atm_names)
     725           36 :             nonbonded%pot(start + n_items)%pot%type = ace_type
     726           18 :             nonbonded%pot(start + n_items)%pot%at1 = atm_names(isec)
     727           18 :             nonbonded%pot(start + n_items)%pot%at2 = atm_names(jsec)
     728           18 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at1)
     729           18 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at2)
     730              : 
     731           18 :             nonbonded%pot(start + n_items)%pot%set(1)%ace%ace_file_name = ace_filename
     732           18 :             nonbonded%pot(start + n_items)%pot%set(1)%ace%atom_ace_type = isec
     733           18 :             nonbonded%pot(start + n_items)%pot%set(1)%ace%model = model
     734              : 
     735              :             !using rcutall(isec,jsec) instead of maxval(rcutall) TODO check that
     736              :             !it shouldn't be jsec,isec?
     737           18 :             nonbonded%pot(start + n_items)%pot%rcutsq = cp_unit_to_cp2k(rcutall(isec, jsec), "angstrom")**2
     738              : 
     739           30 :             n_items = n_items + 1
     740              :          END DO
     741              :       END DO
     742           12 :    END SUBROUTINE read_ace_section
     743              : 
     744              : ! **************************************************************************************
     745              : !> \brief Reads the DEEPMD section
     746              : !> \param nonbonded ...
     747              : !> \param section ...
     748              : !> \param start ...
     749              : !> \author teo
     750              : ! **************************************************************************************************
     751            2 :    SUBROUTINE read_deepmd_section(nonbonded, section, start)
     752              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     753              :       TYPE(section_vals_type), POINTER                   :: section
     754              :       INTEGER, INTENT(IN)                                :: start
     755              : 
     756              :       CHARACTER(LEN=default_string_length)               :: deepmd_file_name
     757              :       CHARACTER(LEN=default_string_length), &
     758            2 :          DIMENSION(:), POINTER                           :: atm_names
     759              :       INTEGER                                            :: isec, jsec, n_items
     760            2 :       INTEGER, DIMENSION(:), POINTER                     :: atm_deepmd_types
     761              : 
     762              :       n_items = 1
     763            2 :       isec = 1
     764            2 :       n_items = isec*n_items
     765            2 :       CALL section_vals_val_get(section, "ATOMS", c_vals=atm_names)
     766            2 :       CALL section_vals_val_get(section, "ATOMS_DEEPMD_TYPE", i_vals=atm_deepmd_types)
     767            2 :       CALL section_vals_val_get(section, "POT_FILE_NAME", c_val=deepmd_file_name)
     768              : 
     769            6 :       DO isec = 1, SIZE(atm_names)
     770           12 :          DO jsec = isec, SIZE(atm_names)
     771           12 :             nonbonded%pot(start + n_items)%pot%type = deepmd_type
     772            6 :             nonbonded%pot(start + n_items)%pot%at1 = atm_names(isec)
     773            6 :             nonbonded%pot(start + n_items)%pot%at2 = atm_names(jsec)
     774            6 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at1)
     775            6 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at2)
     776              : 
     777            6 :             nonbonded%pot(start + n_items)%pot%set(1)%deepmd%deepmd_file_name = discover_file(deepmd_file_name)
     778            6 :             nonbonded%pot(start + n_items)%pot%set(1)%deepmd%atom_deepmd_type = atm_deepmd_types(isec)
     779            6 :             nonbonded%pot(start + n_items)%pot%rcutsq = 0.0_dp
     780           10 :             n_items = n_items + 1
     781              :          END DO
     782              :       END DO
     783            2 :    END SUBROUTINE read_deepmd_section
     784              : 
     785              : ! **************************************************************************************************
     786              : !> \brief Reads the NEQUIP section
     787              : !> \param nonbonded ...
     788              : !> \param section ...
     789              : !> \param start ...
     790              : !> \author Gabriele Tocci
     791              : ! **************************************************************************************************
     792            4 :    SUBROUTINE read_nequip_section(nonbonded, section, start)
     793              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     794              :       TYPE(section_vals_type), POINTER                   :: section
     795              :       INTEGER, INTENT(IN)                                :: start
     796              : 
     797              :       CHARACTER(LEN=default_string_length)               :: model_type_str, pot_file_name, &
     798              :                                                             unit_energy, unit_forces, unit_length
     799              :       CHARACTER(LEN=default_string_length), &
     800            4 :          DIMENSION(:), POINTER                           :: atm_names
     801              :       INTEGER                                            :: chosen_type, isec, jsec, n_items
     802            4 :       TYPE(nequip_pot_type)                              :: nequip
     803              : 
     804              :       n_items = 1
     805            4 :       isec = 1
     806            4 :       n_items = isec*n_items
     807            4 :       CALL section_vals_val_get(section, "ATOMS", c_vals=atm_names)
     808            4 :       CALL section_vals_val_get(section, "POT_FILE_NAME", c_val=pot_file_name)
     809            4 :       CALL section_vals_val_get(section, "UNIT_LENGTH", c_val=unit_length)
     810            4 :       CALL section_vals_val_get(section, "UNIT_ENERGY", c_val=unit_energy)
     811            4 :       CALL section_vals_val_get(section, "UNIT_FORCES", c_val=unit_forces)
     812            4 :       CALL section_vals_val_get(section, "MODEL_TYPE", c_val=model_type_str)
     813            4 :       CALL uppercase(model_type_str)
     814              : 
     815            4 :       IF (TRIM(model_type_str) == "ALLEGRO") THEN
     816              :          chosen_type = allegro_type
     817            2 :       ELSE IF (TRIM(model_type_str) == "NEQUIP") THEN
     818              :          chosen_type = nequip_type
     819              :       ELSE
     820              :          CALL cp_abort(__LOCATION__, &
     821            0 :                        "Unknown MODEL_TYPE: "//TRIM(model_type_str)//". Use NEQUIP or ALLEGRO.")
     822              :       END IF
     823              : 
     824            4 :       nequip%pot_file_name = discover_file(pot_file_name)
     825            4 :       nequip%unit_length = unit_length
     826            4 :       nequip%unit_forces = unit_forces
     827            4 :       nequip%unit_energy = unit_energy
     828            4 :       CALL read_nequip_data(nequip)
     829            4 :       CALL check_cp2k_atom_names_in_torch(atm_names, nequip%type_names_torch)
     830              : 
     831           12 :       DO isec = 1, SIZE(atm_names)
     832           24 :          DO jsec = isec, SIZE(atm_names)
     833           24 :             nonbonded%pot(start + n_items)%pot%type = chosen_type
     834           12 :             nonbonded%pot(start + n_items)%pot%at1 = atm_names(isec)
     835           12 :             nonbonded%pot(start + n_items)%pot%at2 = atm_names(jsec)
     836           12 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at1)
     837           12 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at2)
     838           12 :             nonbonded%pot(start + n_items)%pot%set(1)%nequip = nequip
     839           12 :             nonbonded%pot(start + n_items)%pot%rcutsq = nequip%rcutsq
     840           20 :             n_items = n_items + 1
     841              :          END DO
     842              :       END DO
     843              : 
     844            8 :    END SUBROUTINE read_nequip_section
     845              : 
     846              : ! **************************************************************************************************
     847              : !> \brief Reads the MACE section
     848              : !> \param nonbonded ...
     849              : !> \param section ...
     850              : !> \param start ...
     851              : !> \author Xinyue Sun
     852              : ! **************************************************************************************************
     853            2 :    SUBROUTINE read_mace_section(nonbonded, section, start)
     854              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     855              :       TYPE(section_vals_type), POINTER                   :: section
     856              :       INTEGER, INTENT(IN)                                :: start
     857              : 
     858              :       CHARACTER(LEN=default_string_length)               :: pot_file_name
     859              :       CHARACTER(LEN=default_string_length), &
     860            2 :          DIMENSION(:), POINTER                           :: atm_names
     861              :       INTEGER                                            :: isec, jsec, n_items
     862            2 :       TYPE(nequip_pot_type)                              :: mace
     863              : 
     864              :       n_items = 1
     865            2 :       isec = 1
     866            2 :       n_items = isec*n_items
     867            2 :       CALL section_vals_val_get(section, "ATOMS", c_vals=atm_names)
     868            2 :       CALL section_vals_val_get(section, "POT_FILE_NAME", c_val=pot_file_name)
     869              : 
     870            2 :       mace%pot_file_name = discover_file(pot_file_name)
     871              :       ! MACE models use standardized units: Angstrom, eV and eV/Angstrom
     872            2 :       mace%unit_length = "angstrom"
     873            2 :       mace%unit_energy = "eV"
     874            2 :       mace%unit_forces = "eV/Angstrom"
     875              :       ! MACE models are exported to speak the same metadata/tensor dialect as NequIP
     876            2 :       CALL read_nequip_data(mace)
     877            2 :       CALL check_cp2k_atom_names_in_torch(atm_names, mace%type_names_torch)
     878              : 
     879            4 :       DO isec = 1, SIZE(atm_names)
     880            6 :          DO jsec = isec, SIZE(atm_names)
     881            4 :             nonbonded%pot(start + n_items)%pot%type = mace_type
     882            2 :             nonbonded%pot(start + n_items)%pot%at1 = atm_names(isec)
     883            2 :             nonbonded%pot(start + n_items)%pot%at2 = atm_names(jsec)
     884            2 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at1)
     885            2 :             CALL uppercase(nonbonded%pot(start + n_items)%pot%at2)
     886            2 :             nonbonded%pot(start + n_items)%pot%set(1)%nequip = mace
     887            2 :             nonbonded%pot(start + n_items)%pot%rcutsq = mace%rcutsq
     888            4 :             n_items = n_items + 1
     889              :          END DO
     890              :       END DO
     891              : 
     892            4 :    END SUBROUTINE read_mace_section
     893              : 
     894              : ! **************************************************************************************************
     895              : !> \brief Reads the LJ section
     896              : !> \param nonbonded ...
     897              : !> \param section ...
     898              : !> \param start ...
     899              : !> \author teo
     900              : ! **************************************************************************************************
     901         1008 :    SUBROUTINE read_lj_section(nonbonded, section, start)
     902              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     903              :       TYPE(section_vals_type), POINTER                   :: section
     904              :       INTEGER, INTENT(IN)                                :: start
     905              : 
     906              :       CHARACTER(LEN=default_string_length), &
     907         1008 :          DIMENSION(:), POINTER                           :: atm_names
     908              :       INTEGER                                            :: isec, n_items, n_rep
     909              :       REAL(KIND=dp)                                      :: epsilon, rcut, sigma
     910              : 
     911         1008 :       CALL section_vals_get(section, n_repetition=n_items)
     912         4798 :       DO isec = 1, n_items
     913         3790 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
     914         3790 :          CALL section_vals_val_get(section, "EPSILON", i_rep_section=isec, r_val=epsilon)
     915         3790 :          CALL section_vals_val_get(section, "SIGMA", i_rep_section=isec, r_val=sigma)
     916         3790 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
     917              : 
     918         7580 :          nonbonded%pot(start + isec)%pot%type = lj_charmm_type
     919         3790 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
     920         3790 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
     921         3790 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
     922         3790 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
     923         3790 :          nonbonded%pot(start + isec)%pot%set(1)%lj%epsilon = epsilon
     924         3790 :          nonbonded%pot(start + isec)%pot%set(1)%lj%sigma6 = sigma**6
     925         3790 :          nonbonded%pot(start + isec)%pot%set(1)%lj%sigma12 = sigma**12
     926         3790 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut*rcut
     927              :          !
     928         3790 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
     929         3790 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
     930            2 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
     931         3790 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
     932         3790 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
     933        12380 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
     934              :       END DO
     935         1008 :    END SUBROUTINE read_lj_section
     936              : 
     937              : ! **************************************************************************************************
     938              : !> \brief Reads the WILLIAMS section
     939              : !> \param nonbonded ...
     940              : !> \param section ...
     941              : !> \param start ...
     942              : !> \author teo
     943              : ! **************************************************************************************************
     944          361 :    SUBROUTINE read_wl_section(nonbonded, section, start)
     945              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     946              :       TYPE(section_vals_type), POINTER                   :: section
     947              :       INTEGER, INTENT(IN)                                :: start
     948              : 
     949              :       CHARACTER(LEN=default_string_length), &
     950          361 :          DIMENSION(:), POINTER                           :: atm_names
     951              :       INTEGER                                            :: isec, n_items, n_rep
     952              :       REAL(KIND=dp)                                      :: a, b, c, rcut
     953              : 
     954          361 :       CALL section_vals_get(section, n_repetition=n_items)
     955         1340 :       DO isec = 1, n_items
     956          979 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
     957          979 :          CALL section_vals_val_get(section, "A", i_rep_section=isec, r_val=a)
     958          979 :          CALL section_vals_val_get(section, "B", i_rep_section=isec, r_val=b)
     959          979 :          CALL section_vals_val_get(section, "C", i_rep_section=isec, r_val=c)
     960          979 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
     961              : 
     962         1958 :          nonbonded%pot(start + isec)%pot%type = wl_type
     963          979 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
     964          979 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
     965          979 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
     966          979 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
     967          979 :          nonbonded%pot(start + isec)%pot%set(1)%willis%a = a
     968          979 :          nonbonded%pot(start + isec)%pot%set(1)%willis%b = b
     969          979 :          nonbonded%pot(start + isec)%pot%set(1)%willis%c = c
     970          979 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut*rcut
     971              :          !
     972          979 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
     973          979 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
     974            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
     975          979 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
     976          979 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
     977         3298 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
     978              :       END DO
     979          361 :    END SUBROUTINE read_wl_section
     980              : 
     981              : ! **************************************************************************************************
     982              : !> \brief Reads the GOODWIN section
     983              : !> \param nonbonded ...
     984              : !> \param section ...
     985              : !> \param start ...
     986              : !> \author teo
     987              : ! **************************************************************************************************
     988            0 :    SUBROUTINE read_gd_section(nonbonded, section, start)
     989              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
     990              :       TYPE(section_vals_type), POINTER                   :: section
     991              :       INTEGER, INTENT(IN)                                :: start
     992              : 
     993              :       CHARACTER(LEN=default_string_length), &
     994            0 :          DIMENSION(:), POINTER                           :: atm_names
     995              :       INTEGER                                            :: isec, m, mc, n_items, n_rep
     996              :       REAL(KIND=dp)                                      :: d, dc, rcut, vr0
     997              : 
     998            0 :       CALL section_vals_get(section, n_repetition=n_items)
     999            0 :       DO isec = 1, n_items
    1000            0 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1001            0 :          CALL section_vals_val_get(section, "VR0", i_rep_section=isec, r_val=vr0)
    1002            0 :          CALL section_vals_val_get(section, "D", i_rep_section=isec, r_val=d)
    1003            0 :          CALL section_vals_val_get(section, "DC", i_rep_section=isec, r_val=dc)
    1004            0 :          CALL section_vals_val_get(section, "M", i_rep_section=isec, i_val=m)
    1005            0 :          CALL section_vals_val_get(section, "MC", i_rep_section=isec, i_val=mc)
    1006            0 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1007              : 
    1008            0 :          nonbonded%pot(start + isec)%pot%type = gw_type
    1009            0 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1010            0 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1011            0 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1012            0 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1013            0 :          nonbonded%pot(start + isec)%pot%set(1)%goodwin%vr0 = vr0
    1014            0 :          nonbonded%pot(start + isec)%pot%set(1)%goodwin%d = d
    1015            0 :          nonbonded%pot(start + isec)%pot%set(1)%goodwin%dc = dc
    1016            0 :          nonbonded%pot(start + isec)%pot%set(1)%goodwin%m = m
    1017            0 :          nonbonded%pot(start + isec)%pot%set(1)%goodwin%mc = mc
    1018            0 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut*rcut
    1019              :          !
    1020            0 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1021            0 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1022            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1023            0 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1024            0 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1025            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1026              :       END DO
    1027            0 :    END SUBROUTINE read_gd_section
    1028              : 
    1029              : ! **************************************************************************************************
    1030              : !> \brief Reads the IPBV section
    1031              : !> \param nonbonded ...
    1032              : !> \param section ...
    1033              : !> \param start ...
    1034              : !> \author teo
    1035              : ! **************************************************************************************************
    1036           16 :    SUBROUTINE read_ipbv_section(nonbonded, section, start)
    1037              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1038              :       TYPE(section_vals_type), POINTER                   :: section
    1039              :       INTEGER, INTENT(IN)                                :: start
    1040              : 
    1041              :       CHARACTER(LEN=default_string_length), &
    1042           16 :          DIMENSION(:), POINTER                           :: atm_names
    1043              :       INTEGER                                            :: isec, n_items, n_rep
    1044              :       REAL(KIND=dp)                                      :: rcut
    1045              : 
    1046           16 :       CALL section_vals_get(section, n_repetition=n_items)
    1047           64 :       DO isec = 1, n_items
    1048           48 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1049           96 :          nonbonded%pot(start + isec)%pot%type = ip_type
    1050           48 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1051           48 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1052           48 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1053           48 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1054              :          CALL set_IPBV_ff(nonbonded%pot(start + isec)%pot%at1, nonbonded%pot(start + isec)%pot%at2, &
    1055           48 :                           nonbonded%pot(start + isec)%pot%set(1)%ipbv)
    1056           48 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1057           48 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1058              :          !
    1059           48 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1060           48 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1061            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1062           48 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1063           48 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1064          112 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1065              :       END DO
    1066           16 :    END SUBROUTINE read_ipbv_section
    1067              : 
    1068              : ! **************************************************************************************************
    1069              : !> \brief Reads the BMHFT section
    1070              : !> \param nonbonded ...
    1071              : !> \param section ...
    1072              : !> \param start ...
    1073              : !> \author teo
    1074              : ! **************************************************************************************************
    1075            4 :    SUBROUTINE read_bmhft_section(nonbonded, section, start)
    1076              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1077              :       TYPE(section_vals_type), POINTER                   :: section
    1078              :       INTEGER, INTENT(IN)                                :: start
    1079              : 
    1080              :       CHARACTER(LEN=default_string_length), DIMENSION(2) :: map_atoms
    1081              :       CHARACTER(LEN=default_string_length), &
    1082            4 :          DIMENSION(:), POINTER                           :: atm_names
    1083              :       INTEGER                                            :: i, isec, n_items, n_rep
    1084              :       REAL(KIND=dp)                                      :: rcut
    1085              : 
    1086            4 :       CALL section_vals_get(section, n_repetition=n_items)
    1087           16 :       DO isec = 1, n_items
    1088           12 :          CALL cite_reference(Tosi1964a)
    1089           12 :          CALL cite_reference(Tosi1964b)
    1090           12 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1091           24 :          nonbonded%pot(start + isec)%pot%type = ft_type
    1092           12 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1093           12 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1094           12 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1095           12 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1096              : 
    1097           12 :          CALL section_vals_val_get(section, "A", i_rep_section=isec, n_rep_val=i)
    1098           12 :          IF (i == 1) THEN
    1099              :             CALL section_vals_val_get(section, "A", i_rep_section=isec, &
    1100            0 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ft%a)
    1101              :             CALL section_vals_val_get(section, "B", i_rep_section=isec, &
    1102            0 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ft%b)
    1103              :             CALL section_vals_val_get(section, "C", i_rep_section=isec, &
    1104            0 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ft%c)
    1105              :             CALL section_vals_val_get(section, "D", i_rep_section=isec, &
    1106            0 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ft%d)
    1107              :          ELSE
    1108           12 :             CALL section_vals_val_get(section, "MAP_ATOMS", i_rep_section=isec, c_vals=atm_names)
    1109           36 :             map_atoms = atm_names
    1110           12 :             CALL uppercase(map_atoms(1))
    1111           12 :             CALL uppercase(map_atoms(2))
    1112           12 :             CALL set_BMHFT_ff(map_atoms(1), map_atoms(2), nonbonded%pot(start + isec)%pot%set(1)%ft)
    1113              :          END IF
    1114           12 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1115           12 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1116              :          !
    1117           12 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1118           12 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1119            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1120           12 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1121           12 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1122           40 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1123              :       END DO
    1124            4 :    END SUBROUTINE read_bmhft_section
    1125              : 
    1126              : ! **************************************************************************************************
    1127              : !> \brief Reads the BMHFTD section
    1128              : !> \param nonbonded ...
    1129              : !> \param section ...
    1130              : !> \param start ...
    1131              : !> \author Mathieu Salanne 05.2010
    1132              : ! **************************************************************************************************
    1133           18 :    SUBROUTINE read_bmhftd_section(nonbonded, section, start)
    1134              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1135              :       TYPE(section_vals_type), POINTER                   :: section
    1136              :       INTEGER, INTENT(IN)                                :: start
    1137              : 
    1138              :       CHARACTER(LEN=default_string_length), DIMENSION(2) :: map_atoms
    1139              :       CHARACTER(LEN=default_string_length), &
    1140           18 :          DIMENSION(:), POINTER                           :: atm_names
    1141              :       INTEGER                                            :: i, isec, n_items, n_rep
    1142              :       REAL(KIND=dp)                                      :: rcut
    1143           18 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: bd_vals
    1144              : 
    1145           18 :       NULLIFY (bd_vals)
    1146              : 
    1147           18 :       CALL section_vals_get(section, n_repetition=n_items)
    1148              : 
    1149           84 :       DO isec = 1, n_items
    1150           66 :          CALL cite_reference(Tosi1964a)
    1151           66 :          CALL cite_reference(Tosi1964b)
    1152           66 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1153          132 :          nonbonded%pot(start + isec)%pot%type = ftd_type
    1154           66 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1155           66 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1156           66 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1157           66 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1158              : 
    1159           66 :          CALL section_vals_val_get(section, "A", i_rep_section=isec, n_rep_val=i)
    1160           66 :          IF (i == 1) THEN
    1161              :             CALL section_vals_val_get(section, "A", i_rep_section=isec, &
    1162           66 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ftd%a)
    1163              :             CALL section_vals_val_get(section, "B", i_rep_section=isec, &
    1164           66 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ftd%b)
    1165              :             CALL section_vals_val_get(section, "C", i_rep_section=isec, &
    1166           66 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ftd%c)
    1167              :             CALL section_vals_val_get(section, "D", i_rep_section=isec, &
    1168           66 :                                       r_val=nonbonded%pot(start + isec)%pot%set(1)%ftd%d)
    1169           66 :             CALL section_vals_val_get(section, "BD", i_rep_section=isec, r_vals=bd_vals)
    1170           66 :             IF (ASSOCIATED(bd_vals)) THEN
    1171           66 :                SELECT CASE (SIZE(bd_vals))
    1172              :                CASE (0)
    1173            0 :                   CPABORT("No values specified for parameter BD in section &BMHFTD")
    1174              :                CASE (1)
    1175          186 :                   nonbonded%pot(start + isec)%pot%set(1)%ftd%bd(1:2) = bd_vals(1)
    1176              :                CASE (2)
    1177           24 :                   nonbonded%pot(start + isec)%pot%set(1)%ftd%bd(1:2) = bd_vals(1:2)
    1178              :                CASE DEFAULT
    1179           66 :                   CPABORT("Too many values specified for parameter BD in section &BMHFTD")
    1180              :                END SELECT
    1181              :             ELSE
    1182            0 :                CPABORT("Parameter BD in section &BMHFTD was not specified")
    1183              :             END IF
    1184              :          ELSE
    1185            0 :             CALL section_vals_val_get(section, "MAP_ATOMS", i_rep_section=isec, c_vals=atm_names)
    1186            0 :             map_atoms = atm_names
    1187            0 :             CALL uppercase(map_atoms(1))
    1188            0 :             CALL uppercase(map_atoms(2))
    1189            0 :             CALL set_BMHFTD_ff()
    1190              :          END IF
    1191           66 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1192           66 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1193              :          !
    1194           66 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1195           66 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1196            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1197           66 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1198           66 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1199          216 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1200              :       END DO
    1201           18 :    END SUBROUTINE read_bmhftd_section
    1202              : 
    1203              : ! **************************************************************************************************
    1204              : !> \brief Reads the Buckingham 4 Ranges potential section
    1205              : !> \param nonbonded ...
    1206              : !> \param section ...
    1207              : !> \param start ...
    1208              : !> \par History
    1209              : !>      MK (11.11.2010): Automatic fit of the (default) polynomial coefficients
    1210              : !> \author MI,MK
    1211              : ! **************************************************************************************************
    1212          252 :    SUBROUTINE read_b4_section(nonbonded, section, start)
    1213              : 
    1214              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1215              :       TYPE(section_vals_type), POINTER                   :: section
    1216              :       INTEGER, INTENT(IN)                                :: start
    1217              : 
    1218              :       CHARACTER(LEN=default_string_length), &
    1219          252 :          DIMENSION(:), POINTER                           :: atm_names
    1220              :       INTEGER                                            :: i, ir, isec, n_items, n_rep, np1, np2
    1221              :       LOGICAL                                            :: explicit_poly1, explicit_poly2
    1222              :       REAL(KIND=dp)                                      :: a, b, c, eval_error, r1, r2, r3, rcut
    1223              :       REAL(KIND=dp), DIMENSION(10)                       :: v, x
    1224              :       REAL(KIND=dp), DIMENSION(10, 10)                   :: p, p_inv
    1225          252 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: coeff1, coeff2, list
    1226              : 
    1227          252 :       NULLIFY (coeff1)
    1228          252 :       NULLIFY (coeff2)
    1229              : 
    1230          252 :       CALL section_vals_get(section, n_repetition=n_items)
    1231              : 
    1232          504 :       DO isec = 1, n_items
    1233          252 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1234          252 :          CALL section_vals_val_get(section, "A", i_rep_section=isec, r_val=a)
    1235          252 :          CALL section_vals_val_get(section, "B", i_rep_section=isec, r_val=b)
    1236          252 :          CALL section_vals_val_get(section, "C", i_rep_section=isec, r_val=c)
    1237          252 :          CALL section_vals_val_get(section, "R1", i_rep_section=isec, r_val=r1)
    1238          252 :          CALL section_vals_val_get(section, "R2", i_rep_section=isec, r_val=r2)
    1239          252 :          CALL section_vals_val_get(section, "R3", i_rep_section=isec, r_val=r3)
    1240          252 :          CALL section_vals_val_get(section, "POLY1", explicit=explicit_poly1, n_rep_val=n_rep)
    1241              :          ! Check if polynomial coefficients were specified for range 2 and 3 explicitly
    1242          252 :          IF (explicit_poly1) THEN
    1243           84 :             np1 = 0
    1244          168 :             DO ir = 1, n_rep
    1245           84 :                NULLIFY (list)
    1246           84 :                CALL section_vals_val_get(section, "POLY1", i_rep_val=ir, r_vals=list)
    1247          168 :                IF (ASSOCIATED(list)) THEN
    1248           84 :                   CALL reallocate(coeff1, 0, np1 + SIZE(list) - 1)
    1249          588 :                   DO i = 1, SIZE(list)
    1250          588 :                      coeff1(i + np1 - 1) = list(i)
    1251              :                   END DO
    1252           84 :                   np1 = np1 + SIZE(list)
    1253              :                END IF
    1254              :             END DO
    1255              :          END IF
    1256          252 :          CALL section_vals_val_get(section, "POLY2", explicit=explicit_poly2, n_rep_val=n_rep)
    1257          252 :          IF (explicit_poly2) THEN
    1258           84 :             np2 = 0
    1259          168 :             DO ir = 1, n_rep
    1260           84 :                NULLIFY (list)
    1261           84 :                CALL section_vals_val_get(section, "POLY2", i_rep_val=ir, r_vals=list)
    1262          168 :                IF (ASSOCIATED(list)) THEN
    1263           84 :                   CALL reallocate(coeff2, 0, np2 + SIZE(list) - 1)
    1264          420 :                   DO i = 1, SIZE(list)
    1265          420 :                      coeff2(i + np2 - 1) = list(i)
    1266              :                   END DO
    1267           84 :                   np2 = np2 + SIZE(list)
    1268              :                END IF
    1269              :             END DO
    1270              :          END IF
    1271              :          ! Default is a 5th/3rd-order polynomial fit
    1272          252 :          IF ((.NOT. explicit_poly1) .OR. (.NOT. explicit_poly2)) THEN
    1273              :             ! Build matrix p and vector v to calculate the polynomial coefficients
    1274              :             ! in the vector x from p*x = v
    1275          168 :             p(:, :) = 0.0_dp
    1276              :             ! Row 1: Match the 5th-order polynomial and the potential at r1
    1277          168 :             p(1, 1) = 1.0_dp
    1278         1008 :             DO i = 2, 6
    1279         1008 :                p(1, i) = p(1, i - 1)*r1
    1280              :             END DO
    1281              :             ! Row 2: Match the first derivatives of the 5th-order polynomial and the potential at r1
    1282         1008 :             DO i = 2, 6
    1283         1008 :                p(2, i) = REAL(i - 1, KIND=dp)*p(1, i - 1)
    1284              :             END DO
    1285              :             ! Row 3: Match the second derivatives of the 5th-order polynomial and the potential at r1
    1286          840 :             DO i = 3, 6
    1287          840 :                p(3, i) = REAL(i - 1, KIND=dp)*p(2, i - 1)
    1288              :             END DO
    1289              :             ! Row 4: Match the 5th-order and the 3rd-order polynomials at r2
    1290          168 :             p(4, 1) = 1.0_dp
    1291         1008 :             DO i = 2, 6
    1292         1008 :                p(4, i) = p(4, i - 1)*r2
    1293              :             END DO
    1294          168 :             p(4, 7) = -1.0_dp
    1295          672 :             DO i = 8, 10
    1296          672 :                p(4, i) = p(4, i - 1)*r2
    1297              :             END DO
    1298              :             ! Row 5: Match the first derivatives of the 5th-order and the 3rd-order polynomials at r2
    1299         1008 :             DO i = 2, 6
    1300         1008 :                p(5, i) = REAL(i - 1, KIND=dp)*p(4, i - 1)
    1301              :             END DO
    1302          672 :             DO i = 8, 10
    1303          672 :                p(5, i) = REAL(i - 7, KIND=dp)*p(4, i - 1)
    1304              :             END DO
    1305              :             ! Row 6: Match the second derivatives of the 5th-order and the 3rd-order polynomials at r2
    1306          840 :             DO i = 3, 6
    1307          840 :                p(6, i) = REAL(i - 1, KIND=dp)*p(5, i - 1)
    1308              :             END DO
    1309          504 :             DO i = 9, 10
    1310          504 :                p(6, i) = REAL(i - 7, KIND=dp)*p(5, i - 1)
    1311              :             END DO
    1312              :             ! Row 7: Minimum at r2, ie. the first derivative of the 3rd-order polynomial has to be zero at r2
    1313          672 :             DO i = 8, 10
    1314          672 :                p(7, i) = -p(5, i)
    1315              :             END DO
    1316              :             ! Row 8: Match the 3rd-order polynomial and the potential at r3
    1317          168 :             p(8, 7) = 1.0_dp
    1318          672 :             DO i = 8, 10
    1319          672 :                p(8, i) = p(8, i - 1)*r3
    1320              :             END DO
    1321              :             ! Row 9: Match the first derivatives of the 3rd-order polynomial and the potential at r3
    1322          672 :             DO i = 8, 10
    1323          672 :                p(9, i) = REAL(i - 7, KIND=dp)*p(8, i - 1)
    1324              :             END DO
    1325              :             ! Row 10: Match the second derivatives of the 3rd-order polynomial and the potential at r3
    1326          504 :             DO i = 9, 10
    1327          504 :                p(10, i) = REAL(i - 7, KIND=dp)*p(9, i - 1)
    1328              :             END DO
    1329              :             ! Build the vector v
    1330          168 :             v(1) = a*EXP(-b*r1)
    1331          168 :             v(2) = -b*v(1)
    1332          168 :             v(3) = -b*v(2)
    1333          840 :             v(4:7) = 0.0_dp
    1334          168 :             v(8) = -c/p(8, 10)**2 ! = -c/r3**6
    1335          168 :             v(9) = -6.0_dp*v(8)/r3
    1336          168 :             v(10) = -7.0_dp*v(9)/r3
    1337              :             ! Calculate p_inv the inverse of the matrix p
    1338          168 :             p_inv(:, :) = 0.0_dp
    1339          168 :             CALL invert_matrix(p, p_inv, eval_error)
    1340              : 
    1341          168 :             IF (eval_error >= 1.0E-8_dp) THEN
    1342              :                CALL cp_warn(__LOCATION__, &
    1343              :                             "The polynomial fit for the BUCK4RANGES potential is only accurate to "// &
    1344            0 :                             TRIM(cp_to_string(eval_error)))
    1345              :             END IF
    1346              : 
    1347              :             ! Get the 6 coefficients of the 5th-order polynomial -> x(1:6)
    1348              :             ! and the 4 coefficients of the 3rd-order polynomial -> x(7:10)
    1349        18648 :             x(:) = MATMUL(p_inv(:, :), v(:))
    1350              :          ELSE
    1351           84 :             x(:) = 0.0_dp
    1352              :          END IF
    1353              : 
    1354          252 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1355              : 
    1356          504 :          nonbonded%pot(start + isec)%pot%type = b4_type
    1357          252 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1358          252 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1359          252 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1360          252 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1361          252 :          nonbonded%pot(start + isec)%pot%set(1)%buck4r%a = a
    1362          252 :          nonbonded%pot(start + isec)%pot%set(1)%buck4r%b = b
    1363          252 :          nonbonded%pot(start + isec)%pot%set(1)%buck4r%c = c
    1364          252 :          nonbonded%pot(start + isec)%pot%set(1)%buck4r%r1 = r1
    1365          252 :          nonbonded%pot(start + isec)%pot%set(1)%buck4r%r2 = r2
    1366          252 :          nonbonded%pot(start + isec)%pot%set(1)%buck4r%r3 = r3
    1367          252 :          IF ((.NOT. explicit_poly1) .OR. (.NOT. explicit_poly2)) THEN
    1368          168 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%npoly1 = 5
    1369         1176 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%poly1(0:5) = x(1:6)
    1370          168 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%npoly2 = 3
    1371          840 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%poly2(0:3) = x(7:10)
    1372              :          ELSE
    1373           84 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%npoly1 = np1 - 1
    1374           84 :             CPASSERT(np1 - 1 <= 10)
    1375         1092 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%poly1(0:np1 - 1) = coeff1(0:np1 - 1)
    1376           84 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%npoly2 = np2 - 1
    1377           84 :             CPASSERT(np2 - 1 <= 10)
    1378          756 :             nonbonded%pot(start + isec)%pot%set(1)%buck4r%poly2(0:np2 - 1) = coeff2(0:np2 - 1)
    1379              :          END IF
    1380          252 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut*rcut
    1381              : 
    1382          252 :          IF (ASSOCIATED(coeff1)) THEN
    1383           84 :             DEALLOCATE (coeff1)
    1384              :          END IF
    1385          252 :          IF (ASSOCIATED(coeff2)) THEN
    1386           84 :             DEALLOCATE (coeff2)
    1387              :          END IF
    1388          252 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1389          252 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1390            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1391          252 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1392          252 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1393         1512 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1394              :       END DO
    1395              : 
    1396          252 :    END SUBROUTINE read_b4_section
    1397              : 
    1398              : ! **************************************************************************************************
    1399              : !> \brief Reads the GENPOT - generic potential section
    1400              : !> \param nonbonded ...
    1401              : !> \param section ...
    1402              : !> \param start ...
    1403              : !> \author Teodoro Laino - 10.2006
    1404              : ! **************************************************************************************************
    1405          582 :    SUBROUTINE read_gp_section(nonbonded, section, start)
    1406              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1407              :       TYPE(section_vals_type), POINTER                   :: section
    1408              :       INTEGER, INTENT(IN)                                :: start
    1409              : 
    1410              :       CHARACTER(LEN=default_string_length), &
    1411          582 :          DIMENSION(:), POINTER                           :: atm_names
    1412              :       INTEGER                                            :: isec, n_items, n_rep
    1413              :       REAL(KIND=dp)                                      :: rcut
    1414              : 
    1415          582 :       CALL section_vals_get(section, n_repetition=n_items)
    1416         3810 :       DO isec = 1, n_items
    1417         3228 :          NULLIFY (atm_names)
    1418         3228 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1419         3228 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1420         6456 :          nonbonded%pot(start + isec)%pot%type = gp_type
    1421         3228 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1422         3228 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1423         3228 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut*rcut
    1424         3228 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1425         3228 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1426              :          ! Parse the genpot info
    1427              :          CALL get_generic_info(section, "FUNCTION", nonbonded%pot(start + isec)%pot%set(1)%gp%potential, &
    1428              :                                nonbonded%pot(start + isec)%pot%set(1)%gp%parameters, &
    1429              :                                nonbonded%pot(start + isec)%pot%set(1)%gp%values, &
    1430         3228 :                                size_variables=1, i_rep_sec=isec)
    1431         3228 :          nonbonded%pot(start + isec)%pot%set(1)%gp%variables = nonbonded%pot(start + isec)%pot%set(1)%gp%parameters(1)
    1432              :          !
    1433         3228 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1434         3228 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1435           21 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1436         3228 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1437         3228 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1438        10287 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1439              :       END DO
    1440          582 :    END SUBROUTINE read_gp_section
    1441              : 
    1442              : ! **************************************************************************************************
    1443              : !> \brief Reads the tersoff section
    1444              : !> \param nonbonded ...
    1445              : !> \param section ...
    1446              : !> \param start ...
    1447              : !> \param tersoff_section ...
    1448              : !> \author ikuo
    1449              : ! **************************************************************************************************
    1450           38 :    SUBROUTINE read_tersoff_section(nonbonded, section, start, tersoff_section)
    1451              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1452              :       TYPE(section_vals_type), POINTER                   :: section
    1453              :       INTEGER, INTENT(IN)                                :: start
    1454              :       TYPE(section_vals_type), POINTER                   :: tersoff_section
    1455              : 
    1456              :       CHARACTER(LEN=default_string_length), &
    1457           38 :          DIMENSION(:), POINTER                           :: atm_names
    1458              :       INTEGER                                            :: isec, n_items, n_rep
    1459              :       REAL(KIND=dp)                                      :: rcut, rcutsq
    1460              : 
    1461           38 :       CALL section_vals_get(section, n_repetition=n_items)
    1462           80 :       DO isec = 1, n_items
    1463           42 :          CALL cite_reference(Tersoff1988)
    1464           42 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1465              : 
    1466           84 :          nonbonded%pot(start + isec)%pot%type = tersoff_type
    1467           42 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1468           42 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1469           42 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1470           42 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1471              : 
    1472              :          CALL section_vals_val_get(tersoff_section, "A", i_rep_section=isec, &
    1473           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%A)
    1474              :          CALL section_vals_val_get(tersoff_section, "B", i_rep_section=isec, &
    1475           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%B)
    1476              :          CALL section_vals_val_get(tersoff_section, "lambda1", i_rep_section=isec, &
    1477           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%lambda1)
    1478              :          CALL section_vals_val_get(tersoff_section, "lambda2", i_rep_section=isec, &
    1479           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%lambda2)
    1480              :          CALL section_vals_val_get(tersoff_section, "alpha", i_rep_section=isec, &
    1481           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%alpha)
    1482              :          CALL section_vals_val_get(tersoff_section, "beta", i_rep_section=isec, &
    1483           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%beta)
    1484              :          CALL section_vals_val_get(tersoff_section, "n", i_rep_section=isec, &
    1485           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%n)
    1486              :          CALL section_vals_val_get(tersoff_section, "c", i_rep_section=isec, &
    1487           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%c)
    1488              :          CALL section_vals_val_get(tersoff_section, "d", i_rep_section=isec, &
    1489           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%d)
    1490              :          CALL section_vals_val_get(tersoff_section, "h", i_rep_section=isec, &
    1491           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%h)
    1492              :          CALL section_vals_val_get(tersoff_section, "lambda3", i_rep_section=isec, &
    1493           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%lambda3)
    1494              :          CALL section_vals_val_get(tersoff_section, "bigR", i_rep_section=isec, &
    1495           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%bigR)
    1496              :          CALL section_vals_val_get(tersoff_section, "bigD", i_rep_section=isec, &
    1497           42 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%tersoff%bigD)
    1498              : 
    1499              :          rcutsq = (nonbonded%pot(start + isec)%pot%set(1)%tersoff%bigR + &
    1500           42 :                    nonbonded%pot(start + isec)%pot%set(1)%tersoff%bigD)**2
    1501           42 :          nonbonded%pot(start + isec)%pot%set(1)%tersoff%rcutsq = rcutsq
    1502           42 :          nonbonded%pot(start + isec)%pot%rcutsq = rcutsq
    1503              : 
    1504              :          ! In case it is defined override the standard specification of RCUT
    1505           42 :          CALL section_vals_val_get(tersoff_section, "RCUT", i_rep_section=isec, n_rep_val=n_rep)
    1506           80 :          IF (n_rep == 1) THEN
    1507           24 :             CALL section_vals_val_get(tersoff_section, "RCUT", i_rep_section=isec, r_val=rcut)
    1508           24 :             nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1509              :          END IF
    1510              :       END DO
    1511           38 :    END SUBROUTINE read_tersoff_section
    1512              : 
    1513              : ! **************************************************************************************************
    1514              : !> \brief Reads the gal19 section
    1515              : !> \param nonbonded ...
    1516              : !> \param section ...
    1517              : !> \param start ...
    1518              : !> \param gal_section ...
    1519              : !> \author Clabaut Paul
    1520              : ! **************************************************************************************************
    1521            1 :    SUBROUTINE read_gal_section(nonbonded, section, start, gal_section)
    1522              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1523              :       TYPE(section_vals_type), POINTER                   :: section
    1524              :       INTEGER, INTENT(IN)                                :: start
    1525              :       TYPE(section_vals_type), POINTER                   :: gal_section
    1526              : 
    1527              :       CHARACTER(LEN=default_string_length), &
    1528            1 :          DIMENSION(:), POINTER                           :: atm_names
    1529              :       INTEGER                                            :: iatom, isec, n_items, n_rep, nval
    1530              :       LOGICAL                                            :: is_ok
    1531              :       REAL(KIND=dp)                                      :: rcut, rval
    1532            1 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: rvalues
    1533              :       TYPE(cp_sll_val_type), POINTER                     :: list
    1534              :       TYPE(section_vals_type), POINTER                   :: subsection
    1535              :       TYPE(val_type), POINTER                            :: val
    1536              : 
    1537            1 :       CALL section_vals_get(section, n_repetition=n_items)
    1538            2 :       DO isec = 1, n_items
    1539            1 :          CALL cite_reference(Clabaut2020)
    1540            1 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1541              : 
    1542            2 :          nonbonded%pot(start + isec)%pot%type = gal_type
    1543            1 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1544            1 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1545            1 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1546            1 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1547              : 
    1548            1 :          CALL section_vals_val_get(section, "METALS", i_rep_section=isec, c_vals=atm_names)
    1549            3 :          IF (ANY(LEN_TRIM(atm_names(:)) > 2)) THEN
    1550            0 :             CPWARN("The atom name will be truncated.")
    1551              :          END IF
    1552            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal%met1 = TRIM(atm_names(1))
    1553            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal%met2 = TRIM(atm_names(2))
    1554              : 
    1555              :          CALL section_vals_val_get(gal_section, "epsilon", i_rep_section=isec, &
    1556            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%epsilon)
    1557              :          CALL section_vals_val_get(gal_section, "bxy", i_rep_section=isec, &
    1558            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%bxy)
    1559              :          CALL section_vals_val_get(gal_section, "bz", i_rep_section=isec, &
    1560            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%bz)
    1561              : 
    1562            1 :          CALL section_vals_val_get(gal_section, "r", i_rep_section=isec, r_vals=rvalues)
    1563            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal%r1 = rvalues(1)
    1564            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal%r2 = rvalues(2)
    1565              : 
    1566              :          CALL section_vals_val_get(gal_section, "a1", i_rep_section=isec, &
    1567            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%a1)
    1568              :          CALL section_vals_val_get(gal_section, "a2", i_rep_section=isec, &
    1569            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%a2)
    1570              :          CALL section_vals_val_get(gal_section, "a3", i_rep_section=isec, &
    1571            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%a3)
    1572              :          CALL section_vals_val_get(gal_section, "a4", i_rep_section=isec, &
    1573            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%a4)
    1574              :          CALL section_vals_val_get(gal_section, "A", i_rep_section=isec, &
    1575            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%a)
    1576              :          CALL section_vals_val_get(gal_section, "B", i_rep_section=isec, &
    1577            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%b)
    1578              :          CALL section_vals_val_get(gal_section, "C", i_rep_section=isec, &
    1579            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal%c)
    1580            1 :          NULLIFY (list)
    1581            1 :          subsection => section_vals_get_subs_vals(section, "GCN", i_rep_section=isec)
    1582            1 :          CALL section_vals_val_get(subsection, "_DEFAULT_KEYWORD_", n_rep_val=nval)
    1583            3 :          ALLOCATE (nonbonded%pot(start + isec)%pot%set(1)%gal%gcn(nval))
    1584            1 :          CALL section_vals_list_get(subsection, "_DEFAULT_KEYWORD_", list=list)
    1585          871 :          DO iatom = 1, nval
    1586              :             ! we use only the first default_string_length characters of each line
    1587          870 :             is_ok = cp_sll_val_next(list, val)
    1588          870 :             CALL val_get(val, r_val=rval)
    1589              :             ! assign values
    1590          871 :             nonbonded%pot(start + isec)%pot%set(1)%gal%gcn(iatom) = rval
    1591              :          END DO
    1592              : 
    1593              :          CALL section_vals_val_get(gal_section, "Fit_express", i_rep_section=isec, &
    1594            1 :                                    l_val=nonbonded%pot(start + isec)%pot%set(1)%gal%express)
    1595              : 
    1596              :          ! ! In case it is defined override the standard specification of RCUT
    1597            1 :          CALL section_vals_val_get(gal_section, "RCUT", i_rep_section=isec, n_rep_val=n_rep)
    1598            3 :          IF (n_rep == 1) THEN
    1599            1 :             CALL section_vals_val_get(gal_section, "RCUT", i_rep_section=isec, r_val=rcut)
    1600            1 :             nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1601            1 :             nonbonded%pot(start + isec)%pot%set(1)%gal%rcutsq = rcut**2
    1602              :          END IF
    1603              :       END DO
    1604            1 :    END SUBROUTINE read_gal_section
    1605              : 
    1606              : ! **************************************************************************************************
    1607              : !> \brief Reads the gal21 section
    1608              : !> \param nonbonded ...
    1609              : !> \param section ...
    1610              : !> \param start ...
    1611              : !> \param gal21_section ...
    1612              : !> \author Clabaut Paul
    1613              : ! **************************************************************************************************
    1614            1 :    SUBROUTINE read_gal21_section(nonbonded, section, start, gal21_section)
    1615              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1616              :       TYPE(section_vals_type), POINTER                   :: section
    1617              :       INTEGER, INTENT(IN)                                :: start
    1618              :       TYPE(section_vals_type), POINTER                   :: gal21_section
    1619              : 
    1620              :       CHARACTER(LEN=default_string_length), &
    1621            1 :          DIMENSION(:), POINTER                           :: atm_names
    1622              :       INTEGER                                            :: iatom, isec, n_items, n_rep, nval
    1623              :       LOGICAL                                            :: is_ok
    1624              :       REAL(KIND=dp)                                      :: rcut, rval
    1625            1 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: rvalues
    1626              :       TYPE(cp_sll_val_type), POINTER                     :: list
    1627              :       TYPE(section_vals_type), POINTER                   :: subsection
    1628              :       TYPE(val_type), POINTER                            :: val
    1629              : 
    1630            1 :       CALL section_vals_get(section, n_repetition=n_items)
    1631            2 :       DO isec = 1, n_items
    1632            1 :          CALL cite_reference(Clabaut2021)
    1633            1 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1634              : 
    1635            2 :          nonbonded%pot(start + isec)%pot%type = gal21_type
    1636            1 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1637            1 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1638            1 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1639            1 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1640              : 
    1641            1 :          CALL section_vals_val_get(section, "METALS", i_rep_section=isec, c_vals=atm_names)
    1642            3 :          IF (ANY(LEN_TRIM(atm_names(:)) > 2)) THEN
    1643            0 :             CPWARN("The atom name will be truncated.")
    1644              :          END IF
    1645            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%met1 = TRIM(atm_names(1))
    1646            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%met2 = TRIM(atm_names(2))
    1647              : 
    1648            1 :          CALL section_vals_val_get(gal21_section, "epsilon", i_rep_section=isec, r_vals=rvalues)
    1649            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%epsilon1 = rvalues(1)
    1650            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%epsilon2 = rvalues(2)
    1651            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%epsilon3 = rvalues(3)
    1652              : 
    1653            1 :          CALL section_vals_val_get(gal21_section, "bxy", i_rep_section=isec, r_vals=rvalues)
    1654            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%bxy1 = rvalues(1)
    1655            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%bxy2 = rvalues(2)
    1656              : 
    1657            1 :          CALL section_vals_val_get(gal21_section, "bz", i_rep_section=isec, r_vals=rvalues)
    1658            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%bz1 = rvalues(1)
    1659            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%bz2 = rvalues(2)
    1660              : 
    1661            1 :          CALL section_vals_val_get(gal21_section, "r", i_rep_section=isec, r_vals=rvalues)
    1662            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%r1 = rvalues(1)
    1663            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%r2 = rvalues(2)
    1664              : 
    1665            1 :          CALL section_vals_val_get(gal21_section, "a1", i_rep_section=isec, r_vals=rvalues)
    1666            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a11 = rvalues(1)
    1667            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a12 = rvalues(2)
    1668            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a13 = rvalues(3)
    1669              : 
    1670            1 :          CALL section_vals_val_get(gal21_section, "a2", i_rep_section=isec, r_vals=rvalues)
    1671            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a21 = rvalues(1)
    1672            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a22 = rvalues(2)
    1673            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a23 = rvalues(3)
    1674              : 
    1675            1 :          CALL section_vals_val_get(gal21_section, "a3", i_rep_section=isec, r_vals=rvalues)
    1676            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a31 = rvalues(1)
    1677            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a32 = rvalues(2)
    1678            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a33 = rvalues(3)
    1679              : 
    1680            1 :          CALL section_vals_val_get(gal21_section, "a4", i_rep_section=isec, r_vals=rvalues)
    1681            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a41 = rvalues(1)
    1682            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a42 = rvalues(2)
    1683            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%a43 = rvalues(3)
    1684              : 
    1685            1 :          CALL section_vals_val_get(gal21_section, "A", i_rep_section=isec, r_vals=rvalues)
    1686            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%AO1 = rvalues(1)
    1687            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%AO2 = rvalues(2)
    1688              : 
    1689            1 :          CALL section_vals_val_get(gal21_section, "B", i_rep_section=isec, r_vals=rvalues)
    1690            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%BO1 = rvalues(1)
    1691            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%BO2 = rvalues(2)
    1692              : 
    1693              :          CALL section_vals_val_get(gal21_section, "C", i_rep_section=isec, &
    1694            1 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%gal21%c)
    1695              : 
    1696            1 :          CALL section_vals_val_get(gal21_section, "AH", i_rep_section=isec, r_vals=rvalues)
    1697            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%AH1 = rvalues(1)
    1698            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%AH2 = rvalues(2)
    1699              : 
    1700            1 :          CALL section_vals_val_get(gal21_section, "BH", i_rep_section=isec, r_vals=rvalues)
    1701            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%BH1 = rvalues(1)
    1702            1 :          nonbonded%pot(start + isec)%pot%set(1)%gal21%BH2 = rvalues(2)
    1703              : 
    1704            1 :          NULLIFY (list)
    1705            1 :          subsection => section_vals_get_subs_vals(section, "GCN", i_rep_section=isec)
    1706            1 :          CALL section_vals_val_get(subsection, "_DEFAULT_KEYWORD_", n_rep_val=nval)
    1707            3 :          ALLOCATE (nonbonded%pot(start + isec)%pot%set(1)%gal21%gcn(nval))
    1708            1 :          CALL section_vals_list_get(subsection, "_DEFAULT_KEYWORD_", list=list)
    1709          871 :          DO iatom = 1, nval
    1710              :             ! we use only the first default_string_length characters of each line
    1711          870 :             is_ok = cp_sll_val_next(list, val)
    1712          870 :             CALL val_get(val, r_val=rval)
    1713              :             ! assign values
    1714          871 :             nonbonded%pot(start + isec)%pot%set(1)%gal21%gcn(iatom) = rval
    1715              :          END DO
    1716              : 
    1717              :          CALL section_vals_val_get(gal21_section, "Fit_express", i_rep_section=isec, &
    1718            1 :                                    l_val=nonbonded%pot(start + isec)%pot%set(1)%gal21%express)
    1719              : 
    1720              :          ! ! In case it is defined override the standard specification of RCUT
    1721            1 :          CALL section_vals_val_get(gal21_section, "RCUT", i_rep_section=isec, n_rep_val=n_rep)
    1722            3 :          IF (n_rep == 1) THEN
    1723            1 :             CALL section_vals_val_get(gal21_section, "RCUT", i_rep_section=isec, r_val=rcut)
    1724            1 :             nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1725            1 :             nonbonded%pot(start + isec)%pot%set(1)%gal21%rcutsq = rcut**2
    1726              :          END IF
    1727              :       END DO
    1728            1 :    END SUBROUTINE read_gal21_section
    1729              : 
    1730              : ! **************************************************************************************************
    1731              : !> \brief Reads the siepmann section
    1732              : !> \param nonbonded ...
    1733              : !> \param section ...
    1734              : !> \param start ...
    1735              : !> \param siepmann_section ...
    1736              : !> \author Dorothea Golze
    1737              : ! **************************************************************************************************
    1738            5 :    SUBROUTINE read_siepmann_section(nonbonded, section, start, siepmann_section)
    1739              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1740              :       TYPE(section_vals_type), POINTER                   :: section
    1741              :       INTEGER, INTENT(IN)                                :: start
    1742              :       TYPE(section_vals_type), POINTER                   :: siepmann_section
    1743              : 
    1744              :       CHARACTER(LEN=default_string_length), &
    1745            5 :          DIMENSION(:), POINTER                           :: atm_names
    1746              :       INTEGER                                            :: isec, n_items, n_rep
    1747              :       REAL(KIND=dp)                                      :: rcut
    1748              : 
    1749            5 :       CALL section_vals_get(section, n_repetition=n_items)
    1750           10 :       DO isec = 1, n_items
    1751            5 :          CALL cite_reference(Siepmann1995)
    1752            5 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1753              : 
    1754           10 :          nonbonded%pot(start + isec)%pot%type = siepmann_type
    1755            5 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1756            5 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1757            5 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1758            5 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1759              : 
    1760              :          CALL section_vals_val_get(siepmann_section, "B", i_rep_section=isec, &
    1761            5 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%B)
    1762              :          CALL section_vals_val_get(siepmann_section, "D", i_rep_section=isec, &
    1763            5 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%D)
    1764              :          CALL section_vals_val_get(siepmann_section, "E", i_rep_section=isec, &
    1765            5 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%E)
    1766              :          CALL section_vals_val_get(siepmann_section, "F", i_rep_section=isec, &
    1767            5 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%F)
    1768              :          CALL section_vals_val_get(siepmann_section, "beta", i_rep_section=isec, &
    1769            5 :                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%beta)
    1770              :          CALL section_vals_val_get(siepmann_section, "ALLOW_OH_FORMATION", i_rep_section=isec, &
    1771            5 :                                    l_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%allow_oh_formation)
    1772              :          CALL section_vals_val_get(siepmann_section, "ALLOW_H3O_FORMATION", i_rep_section=isec, &
    1773            5 :                                    l_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%allow_h3o_formation)
    1774              :          CALL section_vals_val_get(siepmann_section, "ALLOW_O_FORMATION", i_rep_section=isec, &
    1775            5 :                                    l_val=nonbonded%pot(start + isec)%pot%set(1)%siepmann%allow_o_formation)
    1776              : 
    1777              :          ! ! In case it is defined override the standard specification of RCUT
    1778            5 :          CALL section_vals_val_get(siepmann_section, "RCUT", i_rep_section=isec, n_rep_val=n_rep)
    1779           10 :          IF (n_rep == 1) THEN
    1780            5 :             CALL section_vals_val_get(siepmann_section, "RCUT", i_rep_section=isec, r_val=rcut)
    1781            5 :             nonbonded%pot(start + isec)%pot%rcutsq = rcut**2
    1782            5 :             nonbonded%pot(start + isec)%pot%set(1)%siepmann%rcutsq = rcut**2
    1783              :          END IF
    1784              :       END DO
    1785            5 :    END SUBROUTINE read_siepmann_section
    1786              : 
    1787              : ! **************************************************************************************************
    1788              : !> \brief Reads the Buckingham plus Morse potential section
    1789              : !> \param nonbonded ...
    1790              : !> \param section ...
    1791              : !> \param start ...
    1792              : !> \author MI
    1793              : ! **************************************************************************************************
    1794            6 :    SUBROUTINE read_bm_section(nonbonded, section, start)
    1795              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1796              :       TYPE(section_vals_type), POINTER                   :: section
    1797              :       INTEGER, INTENT(IN)                                :: start
    1798              : 
    1799              :       CHARACTER(LEN=default_string_length), &
    1800            6 :          DIMENSION(:), POINTER                           :: atm_names
    1801              :       INTEGER                                            :: isec, n_items, n_rep
    1802              :       REAL(KIND=dp)                                      :: a1, a2, b1, b2, beta, c, d, f0, r0, rcut
    1803              : 
    1804            6 :       CALL section_vals_get(section, n_repetition=n_items)
    1805           20 :       DO isec = 1, n_items
    1806           14 :          CALL cite_reference(Yamada2000)
    1807           14 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1808           14 :          CALL section_vals_val_get(section, "F0", i_rep_section=isec, r_val=f0)
    1809           14 :          CALL section_vals_val_get(section, "A1", i_rep_section=isec, r_val=a1)
    1810           14 :          CALL section_vals_val_get(section, "A2", i_rep_section=isec, r_val=a2)
    1811           14 :          CALL section_vals_val_get(section, "B1", i_rep_section=isec, r_val=b1)
    1812           14 :          CALL section_vals_val_get(section, "B2", i_rep_section=isec, r_val=b2)
    1813           14 :          CALL section_vals_val_get(section, "C", i_rep_section=isec, r_val=c)
    1814           14 :          CALL section_vals_val_get(section, "D", i_rep_section=isec, r_val=d)
    1815           14 :          CALL section_vals_val_get(section, "R0", i_rep_section=isec, r_val=r0)
    1816           14 :          CALL section_vals_val_get(section, "Beta", i_rep_section=isec, r_val=beta)
    1817           14 :          CALL section_vals_val_get(section, "RCUT", i_rep_section=isec, r_val=rcut)
    1818              : 
    1819           28 :          nonbonded%pot(start + isec)%pot%type = bm_type
    1820           14 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1821           14 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1822           14 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1823           14 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1824           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%f0 = f0
    1825           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%a1 = a1
    1826           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%a2 = a2
    1827           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%b1 = b1
    1828           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%b2 = b2
    1829           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%c = c
    1830           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%d = d
    1831           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%r0 = r0
    1832           14 :          nonbonded%pot(start + isec)%pot%set(1)%buckmo%beta = beta
    1833           14 :          nonbonded%pot(start + isec)%pot%rcutsq = rcut*rcut
    1834              :          !
    1835           14 :          CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, n_rep_val=n_rep)
    1836           14 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMIN", i_rep_section=isec, &
    1837            0 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmin)
    1838           14 :          CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, n_rep_val=n_rep)
    1839           14 :          IF (n_rep == 1) CALL section_vals_val_get(section, "RMAX", i_rep_section=isec, &
    1840           48 :                                                    r_val=nonbonded%pot(start + isec)%pot%set(1)%rmax)
    1841              :       END DO
    1842            6 :    END SUBROUTINE read_bm_section
    1843              : 
    1844              : ! **************************************************************************************************
    1845              : !> \brief Reads the TABPOT section
    1846              : !> \param nonbonded ...
    1847              : !> \param section ...
    1848              : !> \param start ...
    1849              : !> \param para_env ...
    1850              : !> \param mm_section ...
    1851              : !> \author Alex Mironenko, Da Teng
    1852              : ! **************************************************************************************************
    1853            8 :    SUBROUTINE read_tabpot_section(nonbonded, section, start, para_env, mm_section)
    1854              :       TYPE(pair_potential_p_type), POINTER               :: nonbonded
    1855              :       TYPE(section_vals_type), POINTER                   :: section
    1856              :       INTEGER, INTENT(IN)                                :: start
    1857              :       TYPE(mp_para_env_type), POINTER                    :: para_env
    1858              :       TYPE(section_vals_type), POINTER                   :: mm_section
    1859              : 
    1860              :       CHARACTER(LEN=default_string_length), &
    1861            8 :          DIMENSION(:), POINTER                           :: atm_names
    1862              :       INTEGER                                            :: isec, n_items
    1863              : 
    1864            8 :       CALL section_vals_get(section, n_repetition=n_items)
    1865           32 :       DO isec = 1, n_items
    1866           24 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    1867           48 :          nonbonded%pot(start + isec)%pot%type = tab_type
    1868           24 :          nonbonded%pot(start + isec)%pot%at1 = atm_names(1)
    1869           24 :          nonbonded%pot(start + isec)%pot%at2 = atm_names(2)
    1870           24 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at1)
    1871           24 :          CALL uppercase(nonbonded%pot(start + isec)%pot%at2)
    1872              :          CALL section_vals_val_get(section, "PARM_FILE_NAME", i_rep_section=isec, &
    1873           24 :                                    c_val=nonbonded%pot(start + isec)%pot%set(1)%tab%tabpot_file_name)
    1874           24 :          CALL read_tabpot_data(nonbonded%pot(start + isec)%pot%set(1)%tab, para_env, mm_section)
    1875           32 :          nonbonded%pot(start + isec)%pot%set(1)%tab%index = isec
    1876              :       END DO
    1877            8 :    END SUBROUTINE read_tabpot_section
    1878              : 
    1879              : ! **************************************************************************************************
    1880              : !> \brief Reads the CHARGE section
    1881              : !> \param charge_atm ...
    1882              : !> \param charge ...
    1883              : !> \param section ...
    1884              : !> \param start ...
    1885              : !> \author teo
    1886              : ! **************************************************************************************************
    1887         2097 :    SUBROUTINE read_chrg_section(charge_atm, charge, section, start)
    1888              :       CHARACTER(LEN=default_string_length), &
    1889              :          DIMENSION(:), POINTER                           :: charge_atm
    1890              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: charge
    1891              :       TYPE(section_vals_type), POINTER                   :: section
    1892              :       INTEGER, INTENT(IN)                                :: start
    1893              : 
    1894              :       CHARACTER(LEN=default_string_length)               :: atm_name
    1895              :       INTEGER                                            :: isec, n_items
    1896              : 
    1897         2097 :       CALL section_vals_get(section, n_repetition=n_items)
    1898         7238 :       DO isec = 1, n_items
    1899         5141 :          CALL section_vals_val_get(section, "ATOM", i_rep_section=isec, c_val=atm_name)
    1900         5141 :          charge_atm(start + isec) = atm_name
    1901         5141 :          CALL uppercase(charge_atm(start + isec))
    1902         7238 :          CALL section_vals_val_get(section, "CHARGE", i_rep_section=isec, r_val=charge(start + isec))
    1903              :       END DO
    1904         2097 :    END SUBROUTINE read_chrg_section
    1905              : 
    1906              : ! **************************************************************************************************
    1907              : !> \brief Reads the POLARIZABILITY section
    1908              : !> \param apol_atm ...
    1909              : !> \param apol ...
    1910              : !> \param damping_list ...
    1911              : !> \param section ...
    1912              : !> \param start ...
    1913              : !> \author Marcel Baer
    1914              : ! **************************************************************************************************
    1915           34 :    SUBROUTINE read_apol_section(apol_atm, apol, damping_list, section, &
    1916              :                                 start)
    1917              :       CHARACTER(LEN=default_string_length), &
    1918              :          DIMENSION(:), POINTER                           :: apol_atm
    1919              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: apol
    1920              :       TYPE(damping_info_type), DIMENSION(:), POINTER     :: damping_list
    1921              :       TYPE(section_vals_type), POINTER                   :: section
    1922              :       INTEGER, INTENT(IN)                                :: start
    1923              : 
    1924              :       CHARACTER(LEN=default_string_length)               :: atm_name
    1925              :       INTEGER                                            :: isec, isec_damp, n_damp, n_items, &
    1926              :                                                             start_damp, tmp_damp
    1927              :       TYPE(section_vals_type), POINTER                   :: tmp_section
    1928              : 
    1929           34 :       CALL section_vals_get(section, n_repetition=n_items)
    1930           34 :       NULLIFY (tmp_section)
    1931           34 :       n_damp = 0
    1932              : ! *** Counts number of DIPOLE%DAMPING sections ****
    1933          102 :       DO isec = 1, n_items
    1934              :          tmp_section => section_vals_get_subs_vals(section, "DAMPING", &
    1935           68 :                                                    i_rep_section=isec)
    1936           68 :          CALL section_vals_get(tmp_section, n_repetition=tmp_damp)
    1937          102 :          n_damp = n_damp + tmp_damp
    1938              : 
    1939              :       END DO
    1940              : 
    1941           34 :       IF (n_damp > 0) THEN
    1942           42 :          ALLOCATE (damping_list(1:n_damp))
    1943              :       END IF
    1944              : 
    1945              : ! *** Reads DIPOLE sections *****
    1946           34 :       start_damp = 0
    1947          102 :       DO isec = 1, n_items
    1948           68 :          CALL section_vals_val_get(section, "ATOM", i_rep_section=isec, c_val=atm_name)
    1949           68 :          apol_atm(start + isec) = atm_name
    1950           68 :          CALL uppercase(apol_atm(start + isec))
    1951           68 :          CALL section_vals_val_get(section, "APOL", i_rep_section=isec, r_val=apol(start + isec))
    1952              : 
    1953              :          tmp_section => section_vals_get_subs_vals(section, "DAMPING", &
    1954           68 :                                                    i_rep_section=isec)
    1955           68 :          CALL section_vals_get(tmp_section, n_repetition=tmp_damp)
    1956           80 :          DO isec_damp = 1, tmp_damp
    1957           12 :             damping_list(start_damp + isec_damp)%atm_name1 = apol_atm(start + isec)
    1958              :             CALL section_vals_val_get(tmp_section, "ATOM", i_rep_section=isec_damp, &
    1959           12 :                                       c_val=atm_name)
    1960           12 :             damping_list(start_damp + isec_damp)%atm_name2 = atm_name
    1961           12 :             CALL uppercase(damping_list(start_damp + isec_damp)%atm_name2)
    1962              :             CALL section_vals_val_get(tmp_section, "TYPE", i_rep_section=isec_damp, &
    1963           12 :                                       c_val=atm_name)
    1964           12 :             damping_list(start_damp + isec_damp)%dtype = atm_name
    1965           12 :             CALL uppercase(damping_list(start_damp + isec_damp)%dtype)
    1966              : 
    1967              :             CALL section_vals_val_get(tmp_section, "ORDER", i_rep_section=isec_damp, &
    1968           12 :                                       i_val=damping_list(start_damp + isec_damp)%order)
    1969              :             CALL section_vals_val_get(tmp_section, "BIJ", i_rep_section=isec_damp, &
    1970           12 :                                       r_val=damping_list(start_damp + isec_damp)%bij)
    1971              :             CALL section_vals_val_get(tmp_section, "CIJ", i_rep_section=isec_damp, &
    1972           80 :                                       r_val=damping_list(start_damp + isec_damp)%cij)
    1973              :          END DO
    1974          170 :          start_damp = start_damp + tmp_damp
    1975              : 
    1976              :       END DO
    1977              : 
    1978           34 :    END SUBROUTINE read_apol_section
    1979              : 
    1980              : ! **************************************************************************************************
    1981              : !> \brief Reads the QUADRUPOLE POLARIZABILITY section
    1982              : !> \param cpol_atm ...
    1983              : !> \param cpol ...
    1984              : !> \param section ...
    1985              : !> \param start ...
    1986              : !> \author Marcel Baer
    1987              : ! **************************************************************************************************
    1988            0 :    SUBROUTINE read_cpol_section(cpol_atm, cpol, section, start)
    1989              :       CHARACTER(LEN=default_string_length), &
    1990              :          DIMENSION(:), POINTER                           :: cpol_atm
    1991              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: cpol
    1992              :       TYPE(section_vals_type), POINTER                   :: section
    1993              :       INTEGER, INTENT(IN)                                :: start
    1994              : 
    1995              :       CHARACTER(LEN=default_string_length)               :: atm_name
    1996              :       INTEGER                                            :: isec, n_items
    1997              : 
    1998            0 :       CALL section_vals_get(section, n_repetition=n_items)
    1999            0 :       DO isec = 1, n_items
    2000            0 :          CALL section_vals_val_get(section, "ATOM", i_rep_section=isec, c_val=atm_name)
    2001            0 :          cpol_atm(start + isec) = atm_name
    2002            0 :          CALL uppercase(cpol_atm(start + isec))
    2003            0 :          CALL section_vals_val_get(section, "CPOL", i_rep_section=isec, r_val=cpol(start + isec))
    2004              :       END DO
    2005            0 :    END SUBROUTINE read_cpol_section
    2006              : 
    2007              : ! **************************************************************************************************
    2008              : !> \brief Reads the SHELL section
    2009              : !> \param shell_list ...
    2010              : !> \param section ...
    2011              : !> \param start ...
    2012              : !> \author Marcella Iannuzzi
    2013              : ! **************************************************************************************************
    2014          252 :    SUBROUTINE read_shell_section(shell_list, section, start)
    2015              : 
    2016              :       TYPE(shell_p_type), DIMENSION(:), POINTER          :: shell_list
    2017              :       TYPE(section_vals_type), POINTER                   :: section
    2018              :       INTEGER, INTENT(IN)                                :: start
    2019              : 
    2020              :       CHARACTER(LEN=default_string_length)               :: atm_name
    2021              :       INTEGER                                            :: i_rep, n_rep
    2022              :       REAL(dp)                                           :: ccharge, cutoff, k, maxdist, mfrac, &
    2023              :                                                             scharge
    2024              : 
    2025          252 :       CALL section_vals_get(section, n_repetition=n_rep)
    2026              : 
    2027          704 :       DO i_rep = 1, n_rep
    2028              :          CALL section_vals_val_get(section, "_SECTION_PARAMETERS_", &
    2029          452 :                                    c_val=atm_name, i_rep_section=i_rep)
    2030          452 :          CALL uppercase(atm_name)
    2031          452 :          shell_list(start + i_rep)%atm_name = atm_name
    2032          452 :          CALL section_vals_val_get(section, "CORE_CHARGE", i_rep_section=i_rep, r_val=ccharge)
    2033          452 :          shell_list(start + i_rep)%shell%charge_core = ccharge
    2034          452 :          CALL section_vals_val_get(section, "SHELL_CHARGE", i_rep_section=i_rep, r_val=scharge)
    2035          452 :          shell_list(start + i_rep)%shell%charge_shell = scharge
    2036          452 :          CALL section_vals_val_get(section, "MASS_FRACTION", i_rep_section=i_rep, r_val=mfrac)
    2037          452 :          shell_list(start + i_rep)%shell%massfrac = mfrac
    2038          452 :          CALL section_vals_val_get(section, "K2_SPRING", i_rep_section=i_rep, r_val=k)
    2039          452 :          IF (k < 0.0_dp) THEN
    2040              :             CALL cp_abort(__LOCATION__, &
    2041              :                           "An invalid value was specified for the force constant k2 of the core-shell "// &
    2042            0 :                           "spring potential")
    2043              :          END IF
    2044          452 :          shell_list(start + i_rep)%shell%k2_spring = k
    2045          452 :          CALL section_vals_val_get(section, "K4_SPRING", i_rep_section=i_rep, r_val=k)
    2046          452 :          IF (k < 0.0_dp) THEN
    2047              :             CALL cp_abort(__LOCATION__, &
    2048              :                           "An invalid value was specified for the force constant k4 of the core-shell "// &
    2049            0 :                           "spring potential")
    2050              :          END IF
    2051          452 :          shell_list(start + i_rep)%shell%k4_spring = k
    2052          452 :          CALL section_vals_val_get(section, "MAX_DISTANCE", i_rep_section=i_rep, r_val=maxdist)
    2053          452 :          shell_list(start + i_rep)%shell%max_dist = maxdist
    2054          452 :          CALL section_vals_val_get(section, "SHELL_CUTOFF", i_rep_section=i_rep, r_val=cutoff)
    2055         1608 :          shell_list(start + i_rep)%shell%shell_cutoff = cutoff
    2056              :       END DO
    2057              : 
    2058          252 :    END SUBROUTINE read_shell_section
    2059              : 
    2060              : ! **************************************************************************************************
    2061              : !> \brief Reads the BONDS section
    2062              : !> \param bond_kind ...
    2063              : !> \param bond_a ...
    2064              : !> \param bond_b ...
    2065              : !> \param bond_k ...
    2066              : !> \param bond_r0 ...
    2067              : !> \param bond_cs ...
    2068              : !> \param section ...
    2069              : !> \param start ...
    2070              : !> \author teo
    2071              : ! **************************************************************************************************
    2072          975 :    SUBROUTINE read_bonds_section(bond_kind, bond_a, bond_b, bond_k, bond_r0, bond_cs, section, start)
    2073              :       INTEGER, DIMENSION(:), POINTER                     :: bond_kind
    2074              :       CHARACTER(LEN=default_string_length), &
    2075              :          DIMENSION(:), POINTER                           :: bond_a, bond_b
    2076              :       REAL(KIND=dp), DIMENSION(:, :), POINTER            :: bond_k
    2077              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: bond_r0, bond_cs
    2078              :       TYPE(section_vals_type), POINTER                   :: section
    2079              :       INTEGER, INTENT(IN)                                :: start
    2080              : 
    2081              :       CHARACTER(LEN=default_string_length), &
    2082          975 :          DIMENSION(:), POINTER                           :: atm_names
    2083              :       INTEGER                                            :: isec, k, n_items
    2084          975 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: Kvals
    2085              : 
    2086          975 :       NULLIFY (Kvals, atm_names)
    2087          975 :       CALL section_vals_get(section, n_repetition=n_items)
    2088         2826 :       DO isec = 1, n_items
    2089         1851 :          CALL section_vals_val_get(section, "KIND", i_rep_section=isec, i_val=bond_kind(start + isec))
    2090         1851 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    2091         1851 :          bond_a(start + isec) = atm_names(1)
    2092         1851 :          bond_b(start + isec) = atm_names(2)
    2093         1851 :          CALL uppercase(bond_a(start + isec))
    2094         1851 :          CALL uppercase(bond_b(start + isec))
    2095         1851 :          CALL section_vals_val_get(section, "K", i_rep_section=isec, r_vals=Kvals)
    2096         1851 :          CPASSERT(SIZE(Kvals) <= 3)
    2097         7404 :          bond_k(:, start + isec) = 0.0_dp
    2098         3740 :          DO k = 1, SIZE(Kvals)
    2099         3740 :             bond_k(k, start + isec) = Kvals(k)
    2100              :          END DO
    2101         1851 :          CALL section_vals_val_get(section, "R0", i_rep_section=isec, r_val=bond_r0(start + isec))
    2102         2826 :          CALL section_vals_val_get(section, "CS", i_rep_section=isec, r_val=bond_cs(start + isec))
    2103              :       END DO
    2104          975 :    END SUBROUTINE read_bonds_section
    2105              : 
    2106              : ! **************************************************************************************************
    2107              : !> \brief Reads the BENDS section
    2108              : !> \param bend_kind ...
    2109              : !> \param bend_a ...
    2110              : !> \param bend_b ...
    2111              : !> \param bend_c ...
    2112              : !> \param bend_k ...
    2113              : !> \param bend_theta0 ...
    2114              : !> \param bend_cb ...
    2115              : !> \param bend_r012 ...
    2116              : !> \param bend_r032 ...
    2117              : !> \param bend_kbs12 ...
    2118              : !> \param bend_kbs32 ...
    2119              : !> \param bend_kss ...
    2120              : !> \param bend_legendre ...
    2121              : !> \param section ...
    2122              : !> \param start ...
    2123              : !> \author teo
    2124              : ! **************************************************************************************************
    2125          939 :    SUBROUTINE read_bends_section(bend_kind, bend_a, bend_b, bend_c, bend_k, bend_theta0, bend_cb, &
    2126              :                                  bend_r012, bend_r032, bend_kbs12, bend_kbs32, bend_kss, bend_legendre, &
    2127              :                                  section, start)
    2128              :       INTEGER, DIMENSION(:), POINTER                     :: bend_kind
    2129              :       CHARACTER(LEN=default_string_length), &
    2130              :          DIMENSION(:), POINTER                           :: bend_a, bend_b, bend_c
    2131              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: bend_k, bend_theta0, bend_cb, bend_r012, &
    2132              :                                                             bend_r032, bend_kbs12, bend_kbs32, &
    2133              :                                                             bend_kss
    2134              :       TYPE(legendre_data_type), DIMENSION(:), POINTER    :: bend_legendre
    2135              :       TYPE(section_vals_type), POINTER                   :: section
    2136              :       INTEGER, INTENT(IN)                                :: start
    2137              : 
    2138              :       CHARACTER(LEN=default_string_length), &
    2139          939 :          DIMENSION(:), POINTER                           :: atm_names
    2140              :       INTEGER                                            :: isec, k, n_items, n_rep
    2141          939 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: Kvals, r_values
    2142              : 
    2143          939 :       NULLIFY (Kvals, atm_names)
    2144          939 :       CALL section_vals_get(section, n_repetition=n_items)
    2145         3060 :       bend_legendre%order = 0
    2146         3060 :       DO isec = 1, n_items
    2147         2121 :          CALL section_vals_val_get(section, "KIND", i_rep_section=isec, i_val=bend_kind(start + isec))
    2148         2121 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    2149         2121 :          bend_a(start + isec) = atm_names(1)
    2150         2121 :          bend_b(start + isec) = atm_names(2)
    2151         2121 :          bend_c(start + isec) = atm_names(3)
    2152         2121 :          CALL uppercase(bend_a(start + isec))
    2153         2121 :          CALL uppercase(bend_b(start + isec))
    2154         2121 :          CALL uppercase(bend_c(start + isec))
    2155         2121 :          CALL section_vals_val_get(section, "K", i_rep_section=isec, r_vals=Kvals)
    2156         2121 :          CPASSERT(SIZE(Kvals) == 1)
    2157         2121 :          bend_k(start + isec) = Kvals(1)
    2158         2121 :          CALL section_vals_val_get(section, "THETA0", i_rep_section=isec, r_val=bend_theta0(start + isec))
    2159         2121 :          CALL section_vals_val_get(section, "CB", i_rep_section=isec, r_val=bend_cb(start + isec))
    2160         2121 :          CALL section_vals_val_get(section, "R012", i_rep_section=isec, r_val=bend_r012(start + isec))
    2161         2121 :          CALL section_vals_val_get(section, "R032", i_rep_section=isec, r_val=bend_r032(start + isec))
    2162         2121 :          CALL section_vals_val_get(section, "KBS12", i_rep_section=isec, r_val=bend_kbs12(start + isec))
    2163         2121 :          CALL section_vals_val_get(section, "KBS32", i_rep_section=isec, r_val=bend_kbs32(start + isec))
    2164         2121 :          CALL section_vals_val_get(section, "KSS", i_rep_section=isec, r_val=bend_kss(start + isec))
    2165              :          ! get legendre based data
    2166         2121 :          CALL section_vals_val_get(section, "LEGENDRE", i_rep_section=isec, n_rep_val=n_rep)
    2167         5181 :          DO k = 1, n_rep
    2168         2121 :             CALL section_vals_val_get(section, "LEGENDRE", i_rep_val=k, r_vals=r_values, i_rep_section=isec)
    2169         2121 :             bend_legendre(start + isec)%order = SIZE(r_values)
    2170         2121 :             IF (ASSOCIATED(bend_legendre(start + isec)%coeffs)) THEN
    2171            0 :                DEALLOCATE (bend_legendre(start + isec)%coeffs)
    2172              :             END IF
    2173         6363 :             ALLOCATE (bend_legendre(start + isec)%coeffs(bend_legendre(start + isec)%order))
    2174        10685 :             bend_legendre(start + isec)%coeffs = r_values
    2175              :          END DO
    2176              :       END DO
    2177          939 :    END SUBROUTINE read_bends_section
    2178              : 
    2179              : ! **************************************************************************************************
    2180              : !> \brief ...
    2181              : !> \param ub_kind ...
    2182              : !> \param ub_a ...
    2183              : !> \param ub_b ...
    2184              : !> \param ub_c ...
    2185              : !> \param ub_k ...
    2186              : !> \param ub_r0 ...
    2187              : !> \param section ...
    2188              : !> \param start ...
    2189              : ! **************************************************************************************************
    2190          939 :    SUBROUTINE read_ubs_section(ub_kind, ub_a, ub_b, ub_c, ub_k, ub_r0, section, start)
    2191              :       INTEGER, DIMENSION(:), POINTER                     :: ub_kind
    2192              :       CHARACTER(LEN=default_string_length), &
    2193              :          DIMENSION(:), POINTER                           :: ub_a, ub_b, ub_c
    2194              :       REAL(KIND=dp), DIMENSION(:, :), POINTER            :: ub_k
    2195              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: ub_r0
    2196              :       TYPE(section_vals_type), POINTER                   :: section
    2197              :       INTEGER, INTENT(IN)                                :: start
    2198              : 
    2199              :       CHARACTER(LEN=default_string_length), &
    2200          939 :          DIMENSION(:), POINTER                           :: atm_names
    2201              :       INTEGER                                            :: isec, k, n_items
    2202              :       LOGICAL                                            :: explicit
    2203          939 :       REAL(KIND=dp), DIMENSION(:), POINTER               :: Kvals
    2204              :       TYPE(section_vals_type), POINTER                   :: subsection
    2205              : 
    2206          939 :       NULLIFY (atm_names)
    2207          939 :       CALL section_vals_get(section, n_repetition=n_items)
    2208         3060 :       DO isec = 1, n_items
    2209         2121 :          subsection => section_vals_get_subs_vals(section, "UB", i_rep_section=isec)
    2210         2121 :          CALL section_vals_get(subsection, explicit=explicit)
    2211         3060 :          IF (explicit) THEN
    2212            4 :             CALL section_vals_val_get(subsection, "KIND", i_val=ub_kind(start + isec))
    2213            4 :             CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    2214            4 :             ub_a(start + isec) = atm_names(1)
    2215            4 :             ub_b(start + isec) = atm_names(2)
    2216            4 :             ub_c(start + isec) = atm_names(3)
    2217            4 :             CALL uppercase(ub_a(start + isec))
    2218            4 :             CALL uppercase(ub_b(start + isec))
    2219            4 :             CALL uppercase(ub_c(start + isec))
    2220            4 :             CALL section_vals_val_get(subsection, "K", r_vals=Kvals)
    2221            4 :             CPASSERT(SIZE(Kvals) <= 3)
    2222           16 :             ub_k(:, start + isec) = 0.0_dp
    2223           12 :             DO k = 1, SIZE(Kvals)
    2224           12 :                ub_k(k, start + isec) = Kvals(k)
    2225              :             END DO
    2226            4 :             CALL section_vals_val_get(subsection, "R0", r_val=ub_r0(start + isec))
    2227              :          END IF
    2228              :       END DO
    2229          939 :    END SUBROUTINE read_ubs_section
    2230              : 
    2231              : ! **************************************************************************************************
    2232              : !> \brief Reads the TORSIONS section
    2233              : !> \param torsion_kind ...
    2234              : !> \param torsion_a ...
    2235              : !> \param torsion_b ...
    2236              : !> \param torsion_c ...
    2237              : !> \param torsion_d ...
    2238              : !> \param torsion_k ...
    2239              : !> \param torsion_phi0 ...
    2240              : !> \param torsion_m ...
    2241              : !> \param section ...
    2242              : !> \param start ...
    2243              : !> \author teo
    2244              : ! **************************************************************************************************
    2245            6 :    SUBROUTINE read_torsions_section(torsion_kind, torsion_a, torsion_b, torsion_c, torsion_d, torsion_k, &
    2246              :                                     torsion_phi0, torsion_m, section, start)
    2247              :       INTEGER, DIMENSION(:), POINTER                     :: torsion_kind
    2248              :       CHARACTER(LEN=default_string_length), &
    2249              :          DIMENSION(:), POINTER                           :: torsion_a, torsion_b, torsion_c, &
    2250              :                                                             torsion_d
    2251              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: torsion_k, torsion_phi0
    2252              :       INTEGER, DIMENSION(:), POINTER                     :: torsion_m
    2253              :       TYPE(section_vals_type), POINTER                   :: section
    2254              :       INTEGER, INTENT(IN)                                :: start
    2255              : 
    2256              :       CHARACTER(LEN=default_string_length), &
    2257            6 :          DIMENSION(:), POINTER                           :: atm_names
    2258              :       INTEGER                                            :: isec, n_items
    2259              : 
    2260            6 :       NULLIFY (atm_names)
    2261            6 :       CALL section_vals_get(section, n_repetition=n_items)
    2262           44 :       DO isec = 1, n_items
    2263           38 :          CALL section_vals_val_get(section, "KIND", i_rep_section=isec, i_val=torsion_kind(start + isec))
    2264           38 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    2265           38 :          torsion_a(start + isec) = atm_names(1)
    2266           38 :          torsion_b(start + isec) = atm_names(2)
    2267           38 :          torsion_c(start + isec) = atm_names(3)
    2268           38 :          torsion_d(start + isec) = atm_names(4)
    2269           38 :          CALL uppercase(torsion_a(start + isec))
    2270           38 :          CALL uppercase(torsion_b(start + isec))
    2271           38 :          CALL uppercase(torsion_c(start + isec))
    2272           38 :          CALL uppercase(torsion_d(start + isec))
    2273           38 :          CALL section_vals_val_get(section, "K", i_rep_section=isec, r_val=torsion_k(start + isec))
    2274           38 :          CALL section_vals_val_get(section, "PHI0", i_rep_section=isec, r_val=torsion_phi0(start + isec))
    2275           38 :          CALL section_vals_val_get(section, "M", i_rep_section=isec, i_val=torsion_m(start + isec))
    2276              :          ! Modify parameterisation for OPLS case
    2277           44 :          IF (torsion_kind(start + isec) == do_ff_opls) THEN
    2278           12 :             IF (torsion_phi0(start + isec) /= 0.0_dp) THEN
    2279              :                CALL cp_warn(__LOCATION__, "PHI0 parameter was non-zero "// &
    2280            0 :                             "for an OPLS-type TORSION.  It will be ignored.")
    2281              :             END IF
    2282           12 :             IF (MODULO(torsion_m(start + isec), 2) == 0) THEN
    2283              :                ! For even M, negate the cosine using a Pi phase factor
    2284            2 :                torsion_phi0(start + isec) = pi
    2285              :             END IF
    2286              :             ! the K parameter appears as K/2 in the OPLS parameterisation
    2287           12 :             torsion_k(start + isec) = torsion_k(start + isec)*0.5_dp
    2288              :          END IF
    2289              :       END DO
    2290            6 :    END SUBROUTINE read_torsions_section
    2291              : 
    2292              : ! **************************************************************************************************
    2293              : !> \brief Reads the IMPROPER section
    2294              : !> \param impr_kind ...
    2295              : !> \param impr_a ...
    2296              : !> \param impr_b ...
    2297              : !> \param impr_c ...
    2298              : !> \param impr_d ...
    2299              : !> \param impr_k ...
    2300              : !> \param impr_phi0 ...
    2301              : !> \param section ...
    2302              : !> \param start ...
    2303              : !> \author louis vanduyfhuys
    2304              : ! **************************************************************************************************
    2305            8 :    SUBROUTINE read_improper_section(impr_kind, impr_a, impr_b, impr_c, impr_d, impr_k, &
    2306              :                                     impr_phi0, section, start)
    2307              :       INTEGER, DIMENSION(:), POINTER                     :: impr_kind
    2308              :       CHARACTER(LEN=default_string_length), &
    2309              :          DIMENSION(:), POINTER                           :: impr_a, impr_b, impr_c, impr_d
    2310              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: impr_k, impr_phi0
    2311              :       TYPE(section_vals_type), POINTER                   :: section
    2312              :       INTEGER, INTENT(IN)                                :: start
    2313              : 
    2314              :       CHARACTER(LEN=default_string_length), &
    2315            8 :          DIMENSION(:), POINTER                           :: atm_names
    2316              :       INTEGER                                            :: isec, n_items
    2317              : 
    2318            8 :       NULLIFY (atm_names)
    2319            8 :       CALL section_vals_get(section, n_repetition=n_items)
    2320           16 :       DO isec = 1, n_items
    2321            8 :          CALL section_vals_val_get(section, "KIND", i_rep_section=isec, i_val=impr_kind(start + isec))
    2322            8 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    2323            8 :          impr_a(start + isec) = atm_names(1)
    2324            8 :          impr_b(start + isec) = atm_names(2)
    2325            8 :          impr_c(start + isec) = atm_names(3)
    2326            8 :          impr_d(start + isec) = atm_names(4)
    2327            8 :          CALL uppercase(impr_a(start + isec))
    2328            8 :          CALL uppercase(impr_b(start + isec))
    2329            8 :          CALL uppercase(impr_c(start + isec))
    2330            8 :          CALL uppercase(impr_d(start + isec))
    2331            8 :          CALL section_vals_val_get(section, "K", i_rep_section=isec, r_val=impr_k(start + isec))
    2332           16 :          CALL section_vals_val_get(section, "PHI0", i_rep_section=isec, r_val=impr_phi0(start + isec))
    2333              :       END DO
    2334            8 :    END SUBROUTINE read_improper_section
    2335              : 
    2336              : ! **************************************************************************************************
    2337              : !> \brief Reads the OPBEND section
    2338              : !> \param opbend_kind ...
    2339              : !> \param opbend_a ...
    2340              : !> \param opbend_b ...
    2341              : !> \param opbend_c ...
    2342              : !> \param opbend_d ...
    2343              : !> \param opbend_k ...
    2344              : !> \param opbend_phi0 ...
    2345              : !> \param section ...
    2346              : !> \param start ...
    2347              : !> \author louis vanduyfhuys
    2348              : ! **************************************************************************************************
    2349            2 :    SUBROUTINE read_opbend_section(opbend_kind, opbend_a, opbend_b, opbend_c, opbend_d, opbend_k, &
    2350              :                                   opbend_phi0, section, start)
    2351              :       INTEGER, DIMENSION(:), POINTER                     :: opbend_kind
    2352              :       CHARACTER(LEN=default_string_length), &
    2353              :          DIMENSION(:), POINTER                           :: opbend_a, opbend_b, opbend_c, opbend_d
    2354              :       REAL(KIND=dp), DIMENSION(:), POINTER               :: opbend_k, opbend_phi0
    2355              :       TYPE(section_vals_type), POINTER                   :: section
    2356              :       INTEGER, INTENT(IN)                                :: start
    2357              : 
    2358              :       CHARACTER(LEN=default_string_length), &
    2359            2 :          DIMENSION(:), POINTER                           :: atm_names
    2360              :       INTEGER                                            :: isec, n_items
    2361              : 
    2362            2 :       NULLIFY (atm_names)
    2363            2 :       CALL section_vals_get(section, n_repetition=n_items)
    2364            4 :       DO isec = 1, n_items
    2365            2 :          CALL section_vals_val_get(section, "KIND", i_rep_section=isec, i_val=opbend_kind(start + isec))
    2366            2 :          CALL section_vals_val_get(section, "ATOMS", i_rep_section=isec, c_vals=atm_names)
    2367            2 :          opbend_a(start + isec) = atm_names(1)
    2368            2 :          opbend_b(start + isec) = atm_names(2)
    2369            2 :          opbend_c(start + isec) = atm_names(3)
    2370            2 :          opbend_d(start + isec) = atm_names(4)
    2371            2 :          CALL uppercase(opbend_a(start + isec))
    2372            2 :          CALL uppercase(opbend_b(start + isec))
    2373            2 :          CALL uppercase(opbend_c(start + isec))
    2374            2 :          CALL uppercase(opbend_d(start + isec))
    2375            2 :          CALL section_vals_val_get(section, "K", i_rep_section=isec, r_val=opbend_k(start + isec))
    2376            4 :          CALL section_vals_val_get(section, "PHI0", i_rep_section=isec, r_val=opbend_phi0(start + isec))
    2377              :       END DO
    2378            2 :    END SUBROUTINE read_opbend_section
    2379              : 
    2380              : ! **************************************************************************************************
    2381              : !> \brief Reads the force_field input section
    2382              : !> \param ff_type ...
    2383              : !> \param para_env ...
    2384              : !> \param mm_section ...
    2385              : !> \par History
    2386              : !>      JGH (30.11.2001) : moved determination of setup variables to
    2387              : !>                         molecule_input
    2388              : !> \author CJM
    2389              : ! **************************************************************************************************
    2390         2637 :    SUBROUTINE read_force_field_section(ff_type, para_env, mm_section)
    2391              :       TYPE(force_field_type), INTENT(INOUT)              :: ff_type
    2392              :       TYPE(mp_para_env_type), POINTER                    :: para_env
    2393              :       TYPE(section_vals_type), POINTER                   :: mm_section
    2394              : 
    2395              :       TYPE(section_vals_type), POINTER                   :: ff_section
    2396              : 
    2397              :       NULLIFY (ff_section)
    2398         2637 :       ff_section => section_vals_get_subs_vals(mm_section, "FORCEFIELD")
    2399         2637 :       CALL read_force_field_section1(ff_section, mm_section, ff_type, para_env)
    2400         2637 :    END SUBROUTINE read_force_field_section
    2401              : 
    2402              : ! **************************************************************************************************
    2403              : !> \brief reads EAM potential from library
    2404              : !> \param eam ...
    2405              : !> \param para_env ...
    2406              : !> \param mm_section ...
    2407              : ! **************************************************************************************************
    2408           40 :    SUBROUTINE read_eam_data(eam, para_env, mm_section)
    2409              :       TYPE(eam_pot_type), POINTER                        :: eam
    2410              :       TYPE(mp_para_env_type), POINTER                    :: para_env
    2411              :       TYPE(section_vals_type), POINTER                   :: mm_section
    2412              : 
    2413              :       CHARACTER(len=*), PARAMETER                        :: routineN = 'read_eam_data'
    2414              : 
    2415              :       INTEGER                                            :: handle, i, iw
    2416              :       TYPE(cp_logger_type), POINTER                      :: logger
    2417              :       TYPE(cp_parser_type)                               :: parser
    2418              : 
    2419           20 :       CALL timeset(routineN, handle)
    2420           20 :       NULLIFY (logger)
    2421           20 :       logger => cp_get_default_logger()
    2422              :       iw = cp_print_key_unit_nr(logger, mm_section, "PRINT%FF_INFO", &
    2423           20 :                                 extension=".mmLog")
    2424           20 :       IF (iw > 0) WRITE (iw, *) "Reading EAM data from: ", TRIM(eam%eam_file_name)
    2425           20 :       CALL parser_create(parser, TRIM(eam%eam_file_name), para_env=para_env)
    2426              : 
    2427           20 :       CALL parser_get_next_line(parser, 1)
    2428           20 :       IF (iw > 0) WRITE (iw, *) "Title: ", parser%input_line
    2429              : 
    2430           20 :       CALL parser_get_next_line(parser, 2)
    2431           20 :       READ (parser%input_line, *) eam%drar, eam%drhoar, eam%acutal, eam%npoints
    2432           20 :       eam%drar = cp_unit_to_cp2k(eam%drar, "angstrom")
    2433           20 :       eam%acutal = cp_unit_to_cp2k(eam%acutal, "angstrom")
    2434              :       ! Relocating arrays with the right size
    2435           20 :       CALL reallocate(eam%rho, 1, eam%npoints)
    2436           20 :       CALL reallocate(eam%rhop, 1, eam%npoints)
    2437           20 :       CALL reallocate(eam%rval, 1, eam%npoints)
    2438           20 :       CALL reallocate(eam%rhoval, 1, eam%npoints)
    2439           20 :       CALL reallocate(eam%phi, 1, eam%npoints)
    2440           20 :       CALL reallocate(eam%phip, 1, eam%npoints)
    2441           20 :       CALL reallocate(eam%frho, 1, eam%npoints)
    2442           20 :       CALL reallocate(eam%frhop, 1, eam%npoints)
    2443              :       ! Reading density and derivative of density (with respect to r)
    2444        64020 :       DO i = 1, eam%npoints
    2445        64000 :          CALL parser_get_next_line(parser, 1)
    2446        64000 :          READ (parser%input_line, *) eam%rho(i), eam%rhop(i)
    2447        64000 :          eam%rhop(i) = cp_unit_to_cp2k(eam%rhop(i), "angstrom^-1")
    2448        64000 :          eam%rval(i) = REAL(i - 1, KIND=dp)*eam%drar
    2449        64020 :          eam%rhoval(i) = REAL(i - 1, KIND=dp)*eam%drhoar
    2450              :       END DO
    2451              :       ! Reading pair potential PHI and its derivative (with respect to r)
    2452        64020 :       DO i = 1, eam%npoints
    2453        64000 :          CALL parser_get_next_line(parser, 1)
    2454        64000 :          READ (parser%input_line, *) eam%phi(i), eam%phip(i)
    2455        64000 :          eam%phi(i) = cp_unit_to_cp2k(eam%phi(i), "eV")
    2456        64020 :          eam%phip(i) = cp_unit_to_cp2k(eam%phip(i), "eV*angstrom^-1")
    2457              :       END DO
    2458              :       ! Reading embedded function and its derivative (with respect to density)
    2459        64020 :       DO i = 1, eam%npoints
    2460        64000 :          CALL parser_get_next_line(parser, 1)
    2461        64000 :          READ (parser%input_line, *) eam%frho(i), eam%frhop(i)
    2462        64000 :          eam%frho(i) = cp_unit_to_cp2k(eam%frho(i), "eV")
    2463        64020 :          eam%frhop(i) = cp_unit_to_cp2k(eam%frhop(i), "eV")
    2464              :       END DO
    2465              : 
    2466           20 :       IF (iw > 0) WRITE (iw, *) "Finished EAM data"
    2467           20 :       CALL parser_release(parser)
    2468           20 :       CALL cp_print_key_finished_output(iw, logger, mm_section, "PRINT%FF_INFO")
    2469           20 :       CALL timestop(handle)
    2470              : 
    2471           60 :    END SUBROUTINE read_eam_data
    2472              : 
    2473              : ! **************************************************************************************************
    2474              : !> \brief reads NequIP potential from .pth file
    2475              : !> \param nequip ...
    2476              : !> \author Gabriele Tocci
    2477              : ! **************************************************************************************************
    2478            6 :    SUBROUTINE read_nequip_data(nequip)
    2479              :       TYPE(nequip_pot_type)                              :: nequip
    2480              : 
    2481              :       CHARACTER(LEN=*), PARAMETER                        :: routineN = 'read_nequip_data'
    2482              : 
    2483            6 :       CHARACTER(LEN=100), ALLOCATABLE, DIMENSION(:)      :: tokenized_string
    2484              :       CHARACTER(LEN=4000)                                :: cutoff_matrix_str
    2485              :       CHARACTER(LEN=default_path_length)                 :: allow_tf32_str, cutoff_str, model_dtype, &
    2486              :                                                             num_types_str, types_str
    2487              :       INTEGER                                            :: handle, i, j, k, len_path
    2488              :       LOGICAL                                            :: allow_tf32, found_model_file
    2489              :       REAL(KIND=dp)                                      :: cut_val
    2490              : 
    2491            6 :       CALL timeset(routineN, handle)
    2492              : 
    2493            6 :       INQUIRE (FILE=nequip%pot_file_name, EXIST=found_model_file)
    2494            6 :       IF (.NOT. found_model_file) THEN
    2495              :          CALL cp_abort(__LOCATION__, &
    2496              :                        "Nequip model file <"//TRIM(nequip%pot_file_name)// &
    2497            0 :                        "> not found.")
    2498              :       END IF
    2499              : 
    2500            6 :       len_path = LEN_TRIM(nequip%pot_file_name)
    2501            6 :       IF (len_path >= 4) THEN
    2502            6 :          IF (nequip%pot_file_name(len_path - 3:len_path) == ".pt2") THEN
    2503              :             CALL cp_abort(__LOCATION__, &
    2504              :                           "AOT compiled models (.pt2) are not yet supported in CP2K. " &
    2505            0 :                           //"Please use TorchScript (.pth or .pt) models compiled with nequip-compile.")
    2506              :          END IF
    2507              :       END IF
    2508              : 
    2509            6 :       num_types_str = torch_model_read_metadata(nequip%pot_file_name, "num_types")
    2510            6 :       READ (num_types_str, *) nequip%num_types
    2511            6 :       cutoff_str = torch_model_read_metadata(nequip%pot_file_name, "r_max")
    2512            6 :       types_str = torch_model_read_metadata(nequip%pot_file_name, "type_names")
    2513            6 :       CALL tokenize_string(TRIM(types_str), tokenized_string)
    2514              : 
    2515            6 :       IF (SIZE(tokenized_string) /= nequip%num_types) THEN
    2516              :          CALL cp_abort(__LOCATION__, &
    2517            0 :                        "NequIP Metadata Error: 'num_types' does not match count of 'type_names'")
    2518              :       END IF
    2519              : 
    2520            6 :       IF (ALLOCATED(nequip%type_names_torch)) THEN
    2521            0 :          DEALLOCATE (nequip%type_names_torch)
    2522              :       END IF
    2523           18 :       ALLOCATE (nequip%type_names_torch(SIZE(tokenized_string)))
    2524           36 :       nequip%type_names_torch(:) = tokenized_string(:)
    2525              : 
    2526            6 :       IF (ALLOCATED(nequip%cutoff_matrix)) DEALLOCATE (nequip%cutoff_matrix)
    2527           24 :       ALLOCATE (nequip%cutoff_matrix(nequip%num_types, nequip%num_types))
    2528              : 
    2529            6 :       READ (cutoff_str, *) nequip%rcutsq
    2530            6 :       nequip%rcutsq = cp_unit_to_cp2k(nequip%rcutsq, nequip%unit_length)
    2531            6 :       nequip%rcutsq = nequip%rcutsq*nequip%rcutsq
    2532            6 :       nequip%unit_length_val = cp_unit_to_cp2k(nequip%unit_length_val, nequip%unit_length)
    2533            6 :       nequip%unit_forces_val = cp_unit_to_cp2k(nequip%unit_forces_val, nequip%unit_forces)
    2534            6 :       nequip%unit_energy_val = cp_unit_to_cp2k(nequip%unit_energy_val, nequip%unit_energy)
    2535              : 
    2536            6 :       cutoff_matrix_str = torch_model_read_metadata(nequip%pot_file_name, "per_edge_type_cutoff")
    2537              : 
    2538            6 :       IF (LEN_TRIM(cutoff_matrix_str) > 0) THEN
    2539            0 :          CALL tokenize_string(TRIM(cutoff_matrix_str), tokenized_string)
    2540              : 
    2541            0 :          IF (SIZE(tokenized_string) /= nequip%num_types**2) THEN
    2542            0 :             CALL cp_abort(__LOCATION__, "per_edge_type_cutoff size does not match num_types^2")
    2543              :          END IF
    2544              : 
    2545            0 :          k = 0
    2546            0 :          DO i = 1, nequip%num_types
    2547            0 :             DO j = 1, nequip%num_types
    2548            0 :                k = k + 1
    2549            0 :                READ (tokenized_string(k), *) cut_val
    2550            0 :                cut_val = cp_unit_to_cp2k(cut_val, nequip%unit_length)
    2551            0 :                nequip%cutoff_matrix(i, j) = cut_val*cut_val
    2552              :             END DO
    2553              :          END DO
    2554              :       ELSE
    2555              :          ! Fallback: Fill with global r_max squared
    2556          294 :          nequip%cutoff_matrix(:, :) = nequip%rcutsq
    2557              :       END IF
    2558              : 
    2559            6 :       model_dtype = torch_model_read_metadata(nequip%pot_file_name, "model_dtype")
    2560            6 :       IF (TRIM(model_dtype) == "float32") THEN
    2561            0 :          nequip%mixed_precision = .TRUE.
    2562            6 :       ELSE IF (TRIM(model_dtype) == "float64") THEN
    2563            6 :          nequip%mixed_precision = .FALSE.
    2564              :       END IF
    2565              : 
    2566            6 :       allow_tf32_str = torch_model_read_metadata(nequip%pot_file_name, "allow_tf32")
    2567            6 :       allow_tf32 = (TRIM(allow_tf32_str) == "1")
    2568            6 :       IF (TRIM(allow_tf32_str) /= "1" .AND. TRIM(allow_tf32_str) /= "0") THEN
    2569              :          CALL cp_abort(__LOCATION__, &
    2570              :                        "The value for allow_tf32 <"//TRIM(allow_tf32_str)// &
    2571            0 :                        "> is not supported. Check the .yaml and .pth files.")
    2572              :       END IF
    2573            6 :       CALL torch_allow_tf32(allow_tf32)
    2574              : 
    2575            6 :       CALL timestop(handle)
    2576           12 :    END SUBROUTINE read_nequip_data
    2577              : 
    2578              : ! **************************************************************************************************
    2579              : !> \brief returns tokenized string of kinds from .pth file
    2580              : !> \param element ...
    2581              : !> \param tokenized_array ...
    2582              : !> \author Maria Bilichenko
    2583              : ! **************************************************************************************************
    2584            6 :    SUBROUTINE tokenize_string(element, tokenized_array)
    2585              :       CHARACTER(LEN=*), INTENT(IN)                       :: element
    2586              :       CHARACTER(LEN=100), ALLOCATABLE, DIMENSION(:), &
    2587              :          INTENT(OUT)                                     :: tokenized_array
    2588              : 
    2589              :       CHARACTER(LEN=1)                                   :: ch
    2590              :       CHARACTER(LEN=100)                                 :: current
    2591              :       INTEGER                                            :: i, L, n
    2592              : 
    2593            6 :       L = LEN_TRIM(element)
    2594              : 
    2595            6 :       n = 0
    2596            6 :       current = ""
    2597           76 :       DO i = 1, L
    2598           70 :          ch = element(i:i)
    2599              : 
    2600           76 :          IF ((ch >= 'A' .AND. ch <= 'Z') .OR. (ch >= 'a' .AND. ch <= 'z')) THEN
    2601           46 :             current(LEN_TRIM(current) + 1:LEN_TRIM(current) + 1) = ch
    2602              :          ELSE
    2603           24 :             IF (LEN_TRIM(current) > 0) THEN
    2604           24 :                n = n + 1
    2605           24 :                current = ""
    2606              :             END IF
    2607              :          END IF
    2608              :       END DO
    2609            6 :       IF (LEN_TRIM(current) > 0) n = n + 1
    2610              : 
    2611           18 :       ALLOCATE (tokenized_array(n))
    2612              : 
    2613            6 :       n = 0
    2614            6 :       current = ""
    2615           76 :       DO i = 1, L
    2616           70 :          ch = element(i:i)
    2617           76 :          IF ((ch >= 'A' .AND. ch <= 'Z') .OR. (ch >= 'a' .AND. ch <= 'z')) THEN
    2618           46 :             current(LEN_TRIM(current) + 1:LEN_TRIM(current) + 1) = ch
    2619              :          ELSE
    2620           24 :             IF (LEN_TRIM(current) > 0) THEN
    2621           24 :                n = n + 1
    2622           24 :                tokenized_array(n) = TRIM(current)
    2623           24 :                current = ""
    2624              :             END IF
    2625              :          END IF
    2626              :       END DO
    2627            6 :       IF (LEN_TRIM(current) > 0) THEN
    2628            6 :          n = n + 1
    2629            6 :          tokenized_array(n) = TRIM(current)
    2630              :       END IF
    2631            6 :    END SUBROUTINE tokenize_string
    2632              : 
    2633              : ! **************************************************************************************************
    2634              : !> \brief checks if all the ATOMS from *.inp file are available in *.pth file
    2635              : !> \param cp2k_inp_atom_types ...
    2636              : !> \param torch_atom_types ...
    2637              : !> \author Maria Bilichenko
    2638              : ! **************************************************************************************************
    2639            6 :    SUBROUTINE check_cp2k_atom_names_in_torch(cp2k_inp_atom_types, torch_atom_types)
    2640              :       CHARACTER(LEN=*), DIMENSION(:), INTENT(IN)         :: cp2k_inp_atom_types, torch_atom_types
    2641              : 
    2642              :       INTEGER                                            :: i, j
    2643              :       LOGICAL                                            :: found_atom
    2644              : 
    2645           16 :       DO i = 1, SIZE(cp2k_inp_atom_types)
    2646           10 :          found_atom = .FALSE.
    2647           24 :          DO j = 1, SIZE(torch_atom_types)
    2648           24 :             IF (TRIM(cp2k_inp_atom_types(i)) == TRIM(torch_atom_types(j))) THEN
    2649              :                found_atom = .TRUE.
    2650              :                EXIT
    2651              :             END IF
    2652              :          END DO
    2653           16 :          IF (.NOT. found_atom) THEN
    2654              :             CALL cp_abort(__LOCATION__, &
    2655              :                           "Atom "//TRIM(cp2k_inp_atom_types(i))// &
    2656            0 :                           " is defined in the CP2K input file but is missing in the torch model file")
    2657              :          END IF
    2658              :       END DO
    2659            6 :    END SUBROUTINE check_cp2k_atom_names_in_torch
    2660              : 
    2661              : ! **************************************************************************************************
    2662              : !> \brief reads TABPOT potential from file
    2663              : !> \param tab ...
    2664              : !> \param para_env ...
    2665              : !> \param mm_section ...
    2666              : !> \author Da Teng, Alex Mironenko
    2667              : ! **************************************************************************************************
    2668           48 :    SUBROUTINE read_tabpot_data(tab, para_env, mm_section)
    2669              :       TYPE(tab_pot_type), POINTER                        :: tab
    2670              :       TYPE(mp_para_env_type), POINTER                    :: para_env
    2671              :       TYPE(section_vals_type), POINTER                   :: mm_section
    2672              : 
    2673              :       CHARACTER(len=*), PARAMETER                        :: routineN = 'read_tabpot_data'
    2674              : 
    2675              :       CHARACTER                                          :: d1, d2
    2676              :       INTEGER                                            :: d, handle, i, iw
    2677              :       TYPE(cp_logger_type), POINTER                      :: logger
    2678              :       TYPE(cp_parser_type)                               :: parser
    2679              : 
    2680           24 :       CALL timeset(routineN, handle)
    2681           24 :       NULLIFY (logger)
    2682           24 :       logger => cp_get_default_logger()
    2683              :       iw = cp_print_key_unit_nr(logger, mm_section, "PRINT%FF_INFO", &
    2684           24 :                                 extension=".mmLog")
    2685           24 :       IF (iw > 0) WRITE (iw, *) "Reading TABPOT data from: ", TRIM(tab%tabpot_file_name)
    2686           24 :       CALL parser_create(parser, TRIM(tab%tabpot_file_name), para_env=para_env)
    2687           24 :       CALL parser_get_next_line(parser, 1)
    2688           24 :       IF (iw > 0) WRITE (iw, *) "Title: ", parser%input_line
    2689           24 :       CALL parser_get_next_line(parser, 1)
    2690              : 
    2691              :       ! example format: N 1000 R 1.00 20.0
    2692              :       ! Assume the data is evenly spaced
    2693           24 :       READ (parser%input_line, *) d1, tab%npoints, d2, tab%dr, tab%rcut
    2694              : 
    2695              :       ! Relocating arrays with the right size
    2696           24 :       CALL reallocate(tab%r, 1, tab%npoints)
    2697           24 :       CALL reallocate(tab%e, 1, tab%npoints)
    2698           24 :       CALL reallocate(tab%f, 1, tab%npoints)
    2699              : 
    2700              :       ! Reading r, e, f
    2701        21912 :       DO i = 1, tab%npoints
    2702        21888 :          CALL parser_get_next_line(parser, 1)
    2703        21888 :          READ (parser%input_line, *) d, tab%r(i), tab%e(i), tab%f(i)
    2704        21888 :          tab%r(i) = cp_unit_to_cp2k(tab%r(i), "angstrom")
    2705        21888 :          tab%e(i) = cp_unit_to_cp2k(tab%e(i), "kcalmol")
    2706        21912 :          tab%f(i) = cp_unit_to_cp2k(tab%f(i), "kcalmol*angstrom^-1")
    2707              :       END DO
    2708              : 
    2709           24 :       tab%dr = tab%r(2) - tab%r(1)
    2710           24 :       tab%rcut = cp_unit_to_cp2k(tab%rcut, "angstrom")
    2711              : 
    2712           24 :       IF (iw > 0) WRITE (iw, *) "Finished TABPOT data"
    2713           24 :       CALL parser_release(parser)
    2714           24 :       CALL cp_print_key_finished_output(iw, logger, mm_section, "PRINT%FF_INFO")
    2715           24 :       CALL timestop(handle)
    2716           72 :    END SUBROUTINE read_tabpot_data
    2717              : END MODULE force_fields_input
        

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