LCOV - code coverage report
Current view: top level - src - qs_loc_molecules.F (source / functions) Hit Total Coverage
Test: CP2K Regtests (git:e7e05ae) Lines: 84 84 100.0 %
Date: 2024-04-18 06:59:28 Functions: 1 1 100.0 %

          Line data    Source code
       1             : !--------------------------------------------------------------------------------------------------!
       2             : !   CP2K: A general program to perform molecular dynamics simulations                              !
       3             : !   Copyright 2000-2024 CP2K developers group <https://cp2k.org>                                   !
       4             : !                                                                                                  !
       5             : !   SPDX-License-Identifier: GPL-2.0-or-later                                                      !
       6             : !--------------------------------------------------------------------------------------------------!
       7             : 
       8             : ! **************************************************************************************************
       9             : !> \brief Set of routines handling the localization for molecular properties
      10             : ! **************************************************************************************************
      11             : MODULE qs_loc_molecules
      12             :    USE cell_types,                      ONLY: pbc
      13             :    USE cp_log_handling,                 ONLY: cp_get_default_logger,&
      14             :                                               cp_logger_type
      15             :    USE distribution_1d_types,           ONLY: distribution_1d_type
      16             :    USE kinds,                           ONLY: dp
      17             :    USE memory_utilities,                ONLY: reallocate
      18             :    USE message_passing,                 ONLY: mp_para_env_type
      19             :    USE molecule_kind_types,             ONLY: get_molecule_kind,&
      20             :                                               molecule_kind_type
      21             :    USE molecule_types,                  ONLY: molecule_type
      22             :    USE particle_types,                  ONLY: particle_type
      23             :    USE qs_loc_types,                    ONLY: qs_loc_env_type
      24             : #include "./base/base_uses.f90"
      25             : 
      26             :    IMPLICIT NONE
      27             : 
      28             :    PRIVATE
      29             : 
      30             :    ! *** Public ***
      31             :    PUBLIC :: wfc_to_molecule
      32             : 
      33             :    CHARACTER(len=*), PARAMETER, PRIVATE :: moduleN = 'qs_loc_molecules'
      34             : 
      35             : CONTAINS
      36             : 
      37             : ! **************************************************************************************************
      38             : !> \brief maps wfc's to molecules and also prints molecular dipoles
      39             : !> \param qs_loc_env ...
      40             : !> \param center ...
      41             : !> \param molecule_set ...
      42             : !> \param ispin ...
      43             : !> \param nspins ...
      44             : ! **************************************************************************************************
      45          42 :    SUBROUTINE wfc_to_molecule(qs_loc_env, center, molecule_set, ispin, nspins)
      46             :       TYPE(qs_loc_env_type), INTENT(IN)                  :: qs_loc_env
      47             :       REAL(KIND=dp), INTENT(IN)                          :: center(:, :)
      48             :       TYPE(molecule_type), POINTER                       :: molecule_set(:)
      49             :       INTEGER, INTENT(IN)                                :: ispin, nspins
      50             : 
      51             :       INTEGER :: counter, first_atom, i, iatom, ikind, imol, imol_now, istate, k, local_location, &
      52             :          natom, natom_loc, natom_max, nkind, nmol, nstate
      53          42 :       INTEGER, POINTER                                   :: wfc_to_atom_map(:)
      54             :       REAL(KIND=dp)                                      :: dr(3), mydist(2), ria(3)
      55          42 :       REAL(KIND=dp), POINTER                             :: distance(:), r(:, :)
      56             :       TYPE(cp_logger_type), POINTER                      :: logger
      57             :       TYPE(distribution_1d_type), POINTER                :: local_molecules
      58             :       TYPE(molecule_kind_type), POINTER                  :: molecule_kind
      59             :       TYPE(mp_para_env_type), POINTER                    :: para_env
      60          42 :       TYPE(particle_type), POINTER                       :: particle_set(:)
      61             : 
      62          42 :       logger => cp_get_default_logger()
      63             : 
      64          42 :       particle_set => qs_loc_env%particle_set
      65          42 :       para_env => qs_loc_env%para_env
      66          42 :       local_molecules => qs_loc_env%local_molecules
      67          42 :       nstate = SIZE(center, 2)
      68         126 :       ALLOCATE (wfc_to_atom_map(nstate))
      69             :       !---------------------------------------------------------------------------
      70             :       !---------------------------------------------------------------------------
      71          42 :       nkind = SIZE(local_molecules%n_el)
      72             :       natom = 0
      73          42 :       natom_max = 0
      74         110 :       DO ikind = 1, nkind
      75          68 :          nmol = SIZE(local_molecules%list(ikind)%array)
      76         147 :          DO imol = 1, nmol
      77          37 :             i = local_molecules%list(ikind)%array(imol)
      78          37 :             molecule_kind => molecule_set(i)%molecule_kind
      79          37 :             CALL get_molecule_kind(molecule_kind=molecule_kind, natom=natom)
      80          37 :             natom_max = natom_max + natom
      81          37 :             IF (.NOT. ASSOCIATED(molecule_set(i)%lmi)) THEN
      82          91 :                ALLOCATE (molecule_set(i)%lmi(nspins))
      83          49 :                DO k = 1, nspins
      84          49 :                   NULLIFY (molecule_set(i)%lmi(k)%states)
      85             :                END DO
      86             :             END IF
      87          37 :             molecule_set(i)%lmi(ispin)%nstates = 0
      88         142 :             IF (ASSOCIATED(molecule_set(i)%lmi(ispin)%states)) THEN
      89           9 :                DEALLOCATE (molecule_set(i)%lmi(ispin)%states)
      90             :             END IF
      91             :          END DO
      92             :       END DO
      93          42 :       natom_loc = natom_max
      94          42 :       natom = natom_max
      95             : 
      96          42 :       CALL para_env%max(natom_max)
      97             : 
      98         126 :       ALLOCATE (r(3, natom_max))
      99             : 
     100         126 :       ALLOCATE (distance(natom_max))
     101             : 
     102             :       !Zero all the stuff
     103         530 :       r(:, :) = 0.0_dp
     104         164 :       distance(:) = 1.E10_dp
     105             : 
     106             :       !---------------------------------------------------------------------------
     107             :       !---------------------------------------------------------------------------
     108          42 :       counter = 0
     109          42 :       nkind = SIZE(local_molecules%n_el)
     110         110 :       DO ikind = 1, nkind
     111          68 :          nmol = SIZE(local_molecules%list(ikind)%array)
     112         147 :          DO imol = 1, nmol
     113          37 :             i = local_molecules%list(ikind)%array(imol)
     114          37 :             molecule_kind => molecule_set(i)%molecule_kind
     115          37 :             first_atom = molecule_set(i)%first_atom
     116          37 :             CALL get_molecule_kind(molecule_kind=molecule_kind, natom=natom)
     117             : 
     118         199 :             DO iatom = 1, natom
     119          94 :                counter = counter + 1
     120         413 :                r(:, counter) = particle_set(first_atom + iatom - 1)%r(:)
     121             :             END DO
     122             :          END DO
     123             :       END DO
     124             : 
     125             :       !---------------------------------------------------------------------------
     126             :       !---------------------------------------------------------------------------
     127         294 :       DO istate = 1, nstate
     128        1004 :          distance(:) = 1.E10_dp
     129         886 :          DO iatom = 1, natom_loc
     130         634 :             dr(1) = r(1, iatom) - center(1, istate)
     131         634 :             dr(2) = r(2, iatom) - center(2, istate)
     132         634 :             dr(3) = r(3, iatom) - center(3, istate)
     133         634 :             ria = pbc(dr, qs_loc_env%cell)
     134        2788 :             distance(iatom) = SQRT(DOT_PRODUCT(ria, ria))
     135             :          END DO
     136             : 
     137             :          !combine distance() from all procs
     138        1004 :          local_location = MAX(1, MINLOC(distance, DIM=1))
     139             : 
     140         252 :          mydist(1) = distance(local_location)
     141         252 :          mydist(2) = para_env%mepos
     142             : 
     143         252 :          CALL para_env%minloc(mydist)
     144             : 
     145         294 :          IF (mydist(2) == para_env%mepos) THEN
     146         126 :             wfc_to_atom_map(istate) = local_location
     147             :          ELSE
     148         126 :             wfc_to_atom_map(istate) = 0
     149             :          END IF
     150             :       END DO
     151             :       !---------------------------------------------------------------------------
     152             :       !---------------------------------------------------------------------------
     153          42 :       IF (natom_loc /= 0) THEN
     154         254 :          DO istate = 1, nstate
     155         220 :             iatom = wfc_to_atom_map(istate)
     156         254 :             IF (iatom /= 0) THEN
     157         126 :                counter = 0
     158         126 :                nkind = SIZE(local_molecules%n_el)
     159         163 :                DO ikind = 1, nkind
     160         163 :                   nmol = SIZE(local_molecules%list(ikind)%array)
     161         166 :                   DO imol = 1, nmol
     162         129 :                      imol_now = local_molecules%list(ikind)%array(imol)
     163         129 :                      molecule_kind => molecule_set(imol_now)%molecule_kind
     164         129 :                      CALL get_molecule_kind(molecule_kind=molecule_kind, natom=natom)
     165         129 :                      counter = counter + natom
     166         166 :                      IF (counter >= iatom) EXIT
     167             :                   END DO
     168         163 :                   IF (counter >= iatom) EXIT
     169             :                END DO
     170         126 :                i = molecule_set(imol_now)%lmi(ispin)%nstates
     171         126 :                i = i + 1
     172         126 :                molecule_set(imol_now)%lmi(ispin)%nstates = i
     173         126 :                CALL reallocate(molecule_set(imol_now)%lmi(ispin)%states, 1, i)
     174         126 :                molecule_set(imol_now)%lmi(ispin)%states(i) = istate
     175             :             END IF
     176             :          END DO
     177             :       END IF
     178             : 
     179          42 :       DEALLOCATE (distance)
     180          42 :       DEALLOCATE (r)
     181          42 :       DEALLOCATE (wfc_to_atom_map)
     182             : 
     183          42 :    END SUBROUTINE wfc_to_molecule
     184             :    !------------------------------------------------------------------------------
     185             : 
     186             : END MODULE qs_loc_molecules
     187             : 

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