PCLUSetReuseOrdering
When similar matrices are factored, this causes the ordering computed in the first factor to be used for all following factors; applies to both fill and drop tolerance LUs.
Synopsis
#include "petscpc.h"
int PCLUSetReuseOrdering(PC pc,PetscTruth flag)
Collective on PC
Input Parameters
| pc | - the preconditioner context
|
| flag | - PETSC_TRUE to reuse else PETSC_FALSE
|
Options Database Key
-pc_lu_reuse_ordering -Activate PCLUSetReuseOrdering()
Keywords
PC, levels, reordering, factorization, incomplete, LU
See Also
PCLUSetReuseFill(), PCILUSetReuseOrdering(), PCILUDTSetReuseFill()
Level:intermediate
Location:src/sles/pc/impls/lu/lu.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages