KSPFGMRESModifyPCNoChange#

this is the default used by KSPFMGMRES - it doesn’t change the preconditioner. Flexible Krylov Methods

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 KSPFGMRES iterations that have occurred.
loc_its - the number of KSPFGMRES 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

See Also#

KSP: Linear System Solvers, Flexible Krylov Methods, KSPFGMRES, 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