1: /*
  2:     Private data structure for Chebyshev Iteration
  3: */


  8: typedef struct {
  9:   PetscReal emin,emax;    /* store user provided estimates of extreme eigenvalues */
 10:   KSP       kspest;       /* KSP used to estimate eigenvalues */
 11:   PC        pcnone;       /* Dummy PC to drop in so PCSetFromOptions doesn't get called extra times */
 12:   PetscReal tform[4];     /* transform from Krylov estimates to Chebyshev bounds */
 13:   PetscBool estimate_current;
 14:   PetscInt  eststeps;     /* number of est steps in KSP used to estimate eigenvalues */
 15:   PetscRandom random;
 16: } KSP_Chebyshev;

 18: #endif