PETSc version 3.15.5
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