PCHPDDMGetSTShareSubKSP#
Gets whether the KSP in SLEPc ST and the fine-level subdomain solver is shared.
Synopsis#
#include "petscpc.h" 
PetscErrorCode PCHPDDMGetSTShareSubKSP(PC pc, PetscBool *share)
Input Parameter#
- pc - preconditioner context 
Output Parameter#
- share - whether the - KSPis shared or not
Note#
This is not the same as PCGetReusePreconditioner(). The return value is unlikely to be true, but when it is, a symbolic factorization can be skipped
when using a subdomain PCType such as PCLU or PCCHOLESKY.
See Also#
KSP: Linear System Solvers, PCHPDDM, PCHPDDMSetSTShareSubKSP()
Level#
advanced
Location#
Examples#
Implementations#
PCHPDDMGetSTShareSubKSP_HPDDM() in src/ksp/pc/impls/hpddm/pchpddm.cxx
Index of all PC routines
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Index of all manual pages