#include "petscpc.h" #include "petscksp.h" PetscErrorCode PCGAMGSetEigenvalues(PC pc, PetscReal emax,PetscReal emin)Collective on PC
| pc | - the preconditioner context | |
| emax | - max eigenvalue |
| emin | - min eigenvalue |
| -pc_gamg_eigenvalues <emin,emax> | - estimates of the eigenvalues |