Date: 2013-07-02T14:48:18+00:00

Actual source code: chebyshevimpl.h
petsc-3.4.2 2013-07-02

      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:   PetscBool hybrid;       /* flag for using Hybrid Chebyshev */
     15:   PetscInt  chebysteps;   /* number of Chebyshev steps in Hybrid Chebyshev */
     16:   PetscInt  eststeps;     /* number of adaptive/est steps in Hybrid Chebyshev */
     17:   PetscInt  its;          /* total hybrid iterations, used to determine when toGMRES step in hybrid impl */
     18:   PetscBool purification; /* Hybrid method uses the GMRES/adaptive/est steps to imporve the approximate solution */
     19:   PetscRandom random;
     20: } KSP_Chebyshev;

     22: #endif