KSPGetTolerances#
Gets the relative, absolute, divergence, and maximum iteration tolerances used by the default KSP convergence tests.
Synopsis#
#include "petscksp.h"
#include "petscmat.h"
PetscErrorCode KSPGetTolerances(KSP ksp, PeOp PetscReal *rtol, PeOp PetscReal *abstol, PeOp PetscReal *dtol, PeOp 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
Note#
The user can specify NULL for any parameter that is not needed.
See Also#
KSP: Linear System Solvers, KSPSetTolerances(), KSP, KSPSetMinimumIterations(), KSPGetMinimumIterations()
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex1f.F90
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages