petsc-3.14.6 2021-03-30
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PCFactorSetReuseFill

When matrices with 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()

See Also

PCFactorSetReuseOrdering()

Level

intermediate

Location

src/ksp/pc/impls/factor/factor.c

Implementations

PCFactorSetReuseFill_Factor in src/ksp/pc/impls/factor/factor.c

Index of all PC routines
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Index of all manual pages