petsc-3.14.6 2021-03-30
KSPGMRESSetBreakdownTolerance
Sets tolerance for determining divergence breakdown in GMRES.
Synopsis
#include "petscksp.h"
PetscErrorCode KSPGMRESSetBreakdownTolerance(KSP ksp,PetscReal tol)
Logically Collective on ksp
Input Parameters
| ksp | - the Krylov space context
|
| tol | - the tolerance
|
Options Database
| -ksp_gmres_breakdown_tolerance <positive real value> |
Note: divergence breakdown occurs when GMRES residual increases significantly
during restart
See Also
KSPSetTolerances(), KSPGMRESSetHapTol()
Level
intermediate
Location
src/ksp/ksp/impls/gmres/gmres.c
Implementations
KSPGMRESSetBreakdownTolerance_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