petsc-3.7.7 2017-09-25
   
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
Examples
src/snes/examples/tutorials/ex74f.F90.html