petsc-3.13.6 2020-09-29
KSPGetTolerances
Gets the relative, absolute, divergence, and maximum iteration tolerances used by the default KSP convergence tests.
Synopsis
#include "petscksp.h"
PetscErrorCode KSPGetTolerances(KSP ksp,PetscReal *rtol,PetscReal *abstol,PetscReal *dtol,PetscInt *maxits)
Not Collective
Input Parameter
ksp -the Krylov subspace context
Output Parameters
| rtol | - the relative convergence tolerance
|
| abstol | - the absolute convergence tolerance
|
| dtol | - the divergence tolerance
|
| maxits | - maximum number of iterations
|
Notes
The user can specify NULL for any parameter that is not needed.
maximum, iterations
See Also
KSPSetTolerances(), KSP
Level
intermediate
Location
src/ksp/ksp/interface/itfunc.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages