PETSc version 3.15.5
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
Notes
Currently this option is not valid for all iterative methods.
See Also
 KSPComputeEigenvalues(), KSPComputeEigenvaluesExplicitly(), KSP
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