PCILUSetReuseOrdering

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 ILUs.

Synopsis

#include "petscpc.h"  
int PCILUSetReuseOrdering(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_ilu_reuse_ordering -Activate PCILUSetReuseOrdering()

Keywords

PC, levels, reordering, factorization, incomplete, ILU

See Also

PCILUDTSetReuseFill(), PCLUSetReuseOrdering(), PCLUSetReuseFill()

Level:intermediate
Location:
src/sles/pc/impls/ilu/ilu.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages