PCHPDDMSetSTShareSubKSP#
Sets whether the KSP in SLEPc ST and the fine-level subdomain solver should be shared.
Synopsis#
#include "petscpc.h"
PetscErrorCode PCHPDDMSetSTShareSubKSP(PC pc, PetscBool share)
Input Parameters#
pc - preconditioner context
share - whether the
KSPshould be shared or not
Note#
This is not the same as PCSetReusePreconditioner(). Given certain conditions (visible using -info), a symbolic factorization can be skipped
when using a subdomain PCType such as PCLU or PCCHOLESKY.
See Also#
KSP: Linear System Solvers, PCHPDDM, PCHPDDMGetSTShareSubKSP()
Level#
advanced
Location#
Examples#
Implementations#
PCHPDDMSetSTShareSubKSP_HPDDM() in src/ksp/pc/impls/hpddm/pchpddm.cxx
Index of all PC routines
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Index of all manual pages