PETSc version 3.15.5
KSPFGMRESSetModifyPC
Sets the routine used by FGMRES to modify the preconditioner. 
Synopsis
#include "petscksp.h" 
PetscErrorCode  KSPFGMRESSetModifyPC(KSP ksp,PetscErrorCode (*fcn)(KSP,PetscInt,PetscInt,PetscReal,void*),void *ctx,PetscErrorCode (*d)(void*))
Logically Collective on ksp
Input Parameters
|  | ksp | - iterative context obtained from KSPCreate | 
|  | fcn | - modifypc function | 
|  | ctx | - optional contex | 
|  | d | - optional context destroy routine | 
Calling Sequence of function
PetscErrorCode fcn(KSP ksp,PetscInt total_its,PetscInt loc_its,PetscReal res_norm,void*ctx);
ksp - the ksp context being used.
total_its     - the total number of FGMRES iterations that have occurred.
loc_its       - the number of FGMRES iterations since last restart.
res_norm      - the current residual norm.
ctx           - optional context variable
Options Database Keys
-ksp_fgmres_modifypcnochange
-ksp_fgmres_modifypcksp
Contributed by Allison Baker
Notes
Several modifypc routines are predefined, including
KSPFGMRESModifyPCNoChange()
KSPFGMRESModifyPCKSP()
See Also
 KSPFGMRESModifyPCNoChange(), KSPFGMRESModifyPCKSP()
Level
intermediate
Location
src/ksp/ksp/impls/gmres/fgmres/modpcf.c
Implementations
KSPFGMRESSetModifyPC_FGMRES in src/ksp/ksp/impls/gmres/fgmres/fgmres.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages