petsc-3.14.6 2021-03-30
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KSPSetReusePreconditioner

 reuse the current preconditioner, do not construct a new one even if the operator changes

Synopsis

#include "petscksp.h" 
#include "petscmat.h" 
PetscErrorCode  KSPSetReusePreconditioner(KSP ksp,PetscBool flag)
Collective on ksp

Input Parameters

ksp - iterative context obtained from KSPCreate()
flag - PETSC_TRUE to reuse the current preconditioner

See Also

KSPCreate(), KSPSolve(), KSPDestroy(), PCSetReusePreconditioner(), KSP

Level

intermediate

Location

src/ksp/ksp/interface/itfunc.c

Examples

src/ksp/ksp/tutorials/ex6f.F90.html

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