petsc-3.13.6 2020-09-29

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KSPGMRESSetRestart

Sets number of iterations at which GMRES, FGMRES and LGMRES restarts.

Synopsis

#include "petscksp.h"  
PetscErrorCode  KSPGMRESSetRestart(KSP ksp, PetscInt restart)

Logically Collective on ksp

Input Parameters

	ksp	- the Krylov space context
	restart	- integer restart value

Options Database

-ksp_gmres_restart <positive integer> - Note: The default value is 30.

See Also

KSPSetTolerances(), KSPGMRESSetOrthogonalization(), KSPGMRESSetPreAllocateVectors(), KSPGMRESGetRestart()

Level

intermediate

Location

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

Examples

src/ksp/ksp/tutorials/ex71.c.html

Implementations

KSPGMRESSetRestart_FGMRES in src/ksp/ksp/impls/gmres/fgmres/fgmres.c
KSPGMRESSetRestart_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