KSPGCRSetRestart#
Sets number of iterations at which KSPGCR restarts.
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPGCRSetRestart(KSP ksp, PetscInt restart)
Not Collective
Input Parameters#
ksp - the Krylov space context
restart - integer restart value
Options Database Key#
-ksp_gcr_restart
- the number of stored vectors to orthogonalize against
Note#
The default value is 30.
Developer Note#
The API could be made uniform for all KSP methods that have have a restart.
See Also#
KSP: Linear System Solvers, KSPGCR, KSPSetTolerances(), KSPGCRGetRestart(), KSPGMRESSetRestart()
Level#
intermediate
Location#
Implementations#
KSPGCRSetRestart_GCR() in src/ksp/ksp/impls/gcr/gcr.c
Index of all KSP routines
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Index of all manual pages