petsc-3.3-p7 2013-05-11

PCFactorSetReuseFill

When matrices with same different nonzero structure are factored, this causes later ones to use the fill ratio computed in the initial factorization.

Synopsis

#include "petscpc.h" 
PetscErrorCode  PCFactorSetReuseFill(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_fill -Activates PCFactorSetReuseFill()

Keywords

PC, levels, reordering, factorization, incomplete, Cholesky

See Also

PCFactorSetReuseOrdering()

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