#include "petscksp.h" PetscErrorCode KSPComputeEigenvaluesExplicitly(KSP ksp,PetscInt nmax,PetscReal r[],PetscReal c[])Collective on KSP Many br
ksp | - iterative context obtained from KSPCreate() Many br | |
n | - size of arrays r and c Many br |
r | - real part of computed eigenvalues, provided by user with a dimension at least of n Many br | |
c | - complex part of computed eigenvalues, provided by user with a dimension at least of n Many br |
Many users may just want to use the monitoring routine Many brKSPMonitorSingularValue() (which can be set with option -ksp_monitor_singular_value) Many brto print the singular values at each iteration of the linear solve. Many br
The preconditoner operator, rhs vector, solution vectors should be Many brset before this routine is called. i.e use KSPSetOperators(),KSPSolve() or Many brKSPSetOperators() Many br
Many br
Level:advanced
Location:src/ksp/ksp/interface/eige.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages