slepc-main 2024-11-22
MFNSetTolerances
Sets the tolerance and maximum iteration count used by the MFN convergence tests.
Synopsis
#include "slepcmfn.h"
PetscErrorCode MFNSetTolerances(MFN mfn,PetscReal tol,PetscInt maxits)
Logically Collective
Input Parameters
| mfn | - the matrix function context
|
| tol | - the convergence tolerance
|
| maxits | - maximum number of iterations to use
|
Options Database Keys
| -mfn_tol <tol> | - Sets the convergence tolerance
|
| -mfn_max_it <maxits> | - Sets the maximum number of iterations allowed
|
Notes
Use PETSC_CURRENT to retain the current value of any of the parameters.
Use PETSC_DETERMINE for either argument to assign a default value computed
internally (may be different in each solver).
For maxits use PETSC_UMLIMITED to indicate there is no upper bound on this value.
See Also
MFNGetTolerances()
Level
intermediate
Location
src/mfn/interface/mfnopts.c
Examples
src/mfn/tutorials/ex23.c
src/mfn/tutorials/ex23f.F90
Index of all MFN routines
Table of Contents for all manual pages
Index of all manual pages