petsc-3.5.2 2014-09-08
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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