PCFactorSetReuseOrdering#
When similar matrices are factored, this causes the ordering computed in the first factor to be used for all following factors.
Synopsis#
#include "petscpc.h" 
PetscErrorCode PCFactorSetReuseOrdering(PC pc, PetscBool flag)
Logically Collective
Input Parameters#
- pc - the preconditioner context 
- flag - - PETSC_TRUEto reuse else- PETSC_FALSE
Options Database Key#
- -pc_factor_reuse_ordering - Activate - PCFactorSetReuseOrdering()
See Also#
KSP: Linear System Solvers, PCLU, PCCHOLESKY, PCFactorSetReuseFill()
Level#
intermediate
Location#
Implementations#
PCFactorSetReuseOrdering_Factor() in src/ksp/pc/impls/factor/factor.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages