PETSc version 3.16.5
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# KSPFGMRESModifyPCNoChange

this is the default used by fgmres - it doesn't change the preconditioner.

### Synopsis

    #include "petscksp.h"
    PetscErrorCode  KSPFGMRESModifyPCNoChange(KSP ksp,PetscInt total_its,PetscInt loc_its,PetscReal res_norm,void *dummy)

### Input Parameters

| 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. a restart (so number of Krylov directions to be computed)
| res_norm | - the current residual norm.
| dummy | - context variable, unused in this routine

Contributed by Allison Baker

You can use this as a template!

### See Also

KSPFGMRESSetModifyPC(), KSPFGMRESModifyPCKSP()

### Level

intermediate

### Location

src/ksp/ksp/impls/gmres/fgmres/modpcf.c
Index of all KSP routines
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Index of all manual pages