petsc-3.3-p7 2013-05-11

KSPSetComputeEigenvalues

 Sets a flag so that the extreme eigenvalues values will be calculated via a Lanczos or Arnoldi process as the linear system is solved.

Synopsis

#include "petscksp.h" 
PetscErrorCode  KSPSetComputeEigenvalues(KSP ksp,PetscBool  flg)
Logically Collective on KSP

Input Parameters

ksp - iterative context obtained from KSPCreate()
flg - PETSC_TRUE or PETSC_FALSE

Notes

Currently this option is not valid for all iterative methods.

Keywords

KSP, set, compute, eigenvalues

See Also

KSPComputeEigenvalues(), KSPComputeEigenvaluesExplicitly()

Level:advanced
Location:src/ksp/ksp/interface/itfunc.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages