petsc-3.7.5 2017-01-01
KSPGMRESSetCGSRefinementType
Sets the type of iterative refinement to use in the classical Gram Schmidt orthogonalization.
Synopsis
#include "petscksp.h"
PetscErrorCode KSPGMRESSetCGSRefinementType(KSP ksp,KSPGMRESCGSRefinementType type)
Logically Collective on KSP
Input Parameters
| ksp | - the Krylov space context
|
| type | - the type of refinement
|
Options Database
-ksp_gmres_cgs_refinement_type <refine_never,refine_ifneeded,refine_always> -
Keywords
KSP, GMRES, iterative refinement
See Also
KSPGMRESSetOrthogonalization(), KSPGMRESCGSRefinementType, KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESGetCGSRefinementType(),
KSPGMRESGetOrthogonalization()
Level:intermediate
Location:src/ksp/ksp/impls/gmres/gmres.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages