KSPGetComputeEigenvalues#
Gets the flag indicating that the extreme eigenvalues values will be calculated via a Lanczos or Arnoldi process as the linear system is solved.
Synopsis#
#include "petscksp.h"
#include "petscmat.h"
PetscErrorCode KSPGetComputeEigenvalues(KSP ksp, PetscBool *flg)
Not Collective
Input Parameter#
ksp - iterative context obtained from
KSPCreate()
Output Parameter#
flg -
PETSC_TRUEorPETSC_FALSE
Note#
Currently this option is not valid for all iterative methods.
See Also#
KSP: Linear System Solvers, KSPComputeEigenvalues(), KSPComputeEigenvaluesExplicitly(), KSP, KSPSetComputeRitz()
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