petsc-3.9.4 2018-09-11
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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 on
PC
Input Parameters
pc
- the preconditioner context
flag
-
PETSC_TRUE
to reuse else
PETSC_FALSE
Options Database Key
-pc_factor_reuse_ordering
-Activate
PCFactorSetReuseOrdering
()
Keywords
PC
, levels, reordering, factorization, incomplete, LU
See Also
PCFactorSetReuseFill
()
Level
intermediate
Location
src/ksp/pc/impls/factor/cholesky/cholesky.c
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