KSPLGMRESSetConstant

keep the error approximation space a constant size for every restart cycle

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPLGMRESSetConstant(KSP ksp)

Collective

Input Parameters

• ksp - the KSP context

Options Database Key

• -ksp_lgmres_constant - set the size to be constant

Note

This only affects the first couple of restart cycles when the total number of desired error approximations may not be available.

See Also

KSP: Linear System Solvers, KSPLGMRES, KSPLGMRESSetAugDim()

Level

intermediate

Location

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

Implementations

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

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