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

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

KSP: Linear System Solvers, PCLU, PCCHOLESKY, PCILU, PCICC, PCFactorSetReuseOrdering(), PCFactorSetFill()

Level

intermediate

Location

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

Implementations

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

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