petsc-3.7.7 2017-09-25

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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
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages