petsc-3.7.1 2016-05-15
KSPChebyshevSetEigenvalues
Sets estimates for the extreme eigenvalues of the preconditioned problem.
Synopsis
#include "petscksp.h"
PetscErrorCode KSPChebyshevSetEigenvalues(KSP ksp,PetscReal emax,PetscReal emin)
Logically Collective on KSP Many br
Input Parameters
| ksp | - the Krylov space context Many br |
| emax, emin | - the eigenvalue estimates Many br |
Options Database
-ksp_chebyshev_eigenvalues emin,emax - Many brNote: Call KSPChebyshevEstEigSet() or use the option -ksp_chebyshev_esteig a,b,c,d to have the KSP Many brestimate the eigenvalues and use these estimated values automatically Many br
Many br
Keywords
KSP, Chebyshev, set, eigenvalues
Level:intermediate
Location:src/ksp/ksp/impls/cheby/cheby.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages