PETSc version 3.15.5
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