petsc-3.9.4 2018-09-11
KSPGMRESGetCGSRefinementType
Gets the type of iterative refinement to use in the classical Gram Schmidt orthogonalization.
Synopsis
#include "petscksp.h"
PetscErrorCode KSPGMRESGetCGSRefinementType(KSP ksp,KSPGMRESCGSRefinementType *type)
Not Collective
Input Parameter
ksp -the Krylov space context
Output Parameter
type -the type of refinement
Options Database
-ksp_gmres_cgs_refinement_type <never,ifneeded,always> -
Keywords
KSP, GMRES, iterative refinement
See Also
KSPGMRESSetOrthogonalization(), KSPGMRESCGSRefinementType, KSPGMRESClassicalGramSchmidtOrthogonalization(), KSPGMRESSetCGSRefinementType(),
KSPGMRESGetOrthogonalization()
Level
intermediate
Location
src/ksp/ksp/impls/gmres/gmres.c
Implementations
KSPGMRESGetCGSRefinementType_GMRES in src/ksp/ksp/impls/gmres/gmres.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages