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faq:cholesky_decomp_failed

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faq:cholesky_decomp_failed [2015/12/14 20:03] – oschuettfaq:cholesky_decomp_failed [2020/08/21 10:15] (current) – external edit 127.0.0.1
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   * Try some of the other [[inp>FORCE_EVAL/DFT/SCF/OT#PRECONDITIONER|PRECONDITIONER]] options, which may prove to be more stable for your system.   * Try some of the other [[inp>FORCE_EVAL/DFT/SCF/OT#PRECONDITIONER|PRECONDITIONER]] options, which may prove to be more stable for your system.
-  * Decrease the value of [[inp>FORCE_EVAL/DFT/QS#list_EPS_DEFAULT|EPS_DEFAULT]] or [[inp>FORCE_EVAL/DFT/QS#list_EPS_PGF_ORB|EPS_PGF_ORB]], to reduce the amount of numerical noise in the construction of S.+  * Decrease the value of [[inp>FORCE_EVAL/DFT/QS#EPS_DEFAULT|EPS_DEFAULT]] or [[inp>FORCE_EVAL/DFT/QS#EPS_PGF_ORB|EPS_PGF_ORB]], to reduce the amount of numerical noise in the construction of S.
   * Check carefully that the Basis Set(s) chosen for your calculation are appropriate for the system.  If the basis set is over-complete this could result in a singular overlap matrix - try switching to a smaller basis set.   * Check carefully that the Basis Set(s) chosen for your calculation are appropriate for the system.  If the basis set is over-complete this could result in a singular overlap matrix - try switching to a smaller basis set.
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