petsc-dev 2014-08-28
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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
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages