petsc-3.9.4 2018-09-11
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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
Table of Contents for all manual pages
Index of all manual pages