KSPGuessSetTolerance#
Sets the relative tolerance used in either eigenvalue (POD) or singular value (Fischer type 3) calculations.
Synopsis#
#include "petscksp.h"  
PetscErrorCode KSPGuessSetTolerance(KSPGuess guess, PetscReal tol)
Collective
Input Parameters#
- guess - - KSPGuessobject
- tol - the tolerance 
Options Database Key#
- -ksp_guess_fischer_tol - - set the tolerance for the Fischer models
- -ksp_guess_pod_tol - - set the tolerance for the Pod models
Note#
Ignored by the first and second Fischer guess types
See Also#
KSP: Linear System Solvers, KSPGuess, KSPGuessType, KSPGuessSetFromOptions()
Level#
developer
Location#
Implementations#
KSPGuessSetTolerance_Fischer() in src/ksp/ksp/guess/impls/fischer/fischer.c
KSPGuessSetTolerance_POD() in src/ksp/ksp/guess/impls/pod/pod.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages