KSPLGMRESSetAugDim#

Set the number of error approximations to include in the approximation space (default is 2) for KSPLGMRES

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPLGMRESSetAugDim(KSP ksp, PetscInt dim)

Collective

Input Parameters#

  • ksp - the KSP context

  • dim - the number of vectors to use

Options Database Key#

  • -ksp_lgmres_augment dim - the number of error approximations to include

Note#

If this is set to zero, then this method is equivalent to KSPGMRES

See Also#

KSP: Linear System Solvers, KSPLGMRES, KSPLGMRESSetConstant()

Level#

intermediate

Location#

src/ksp/ksp/impls/gmres/lgmres/lgmres.c

Implementations#

KSPLGMRESSetAugDim_LGMRES() in src/ksp/ksp/impls/gmres/lgmres/lgmres.c

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Index of all manual pages