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, 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 
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#
src/ksp/ksp/interface/itfunc.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages