petsc-dev 2014-04-16
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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.

Keywords

KSP, get, tolerance, absolute, relative, divergence, convergence,
maximum, iterations

See Also

KSPSetTolerances()

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