PETSc version 3.15.5
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 | 
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