Actual source code: chebyshevimpl.h
petsc-3.10.5 2019-03-28
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      1: /*
      2:     Private data structure for Chebyshev Iteration
      3: */

      8:  #include <petsc/private/kspimpl.h>

     10: typedef struct {
     11:   PetscReal        emin,emax;    /* store user provided estimates of extreme eigenvalues or computed with kspest and transformed with tform[] */
     12:   PetscReal        emin_computed,emax_computed; /* eigenvalues as computed by kspest, if computed */
     13:   KSP              kspest;       /* KSP used to estimate eigenvalues */
     14:   PetscReal        tform[4];     /* transform from Krylov estimates to Chebyshev bounds */
     15:   PetscInt         eststeps;     /* number of kspest steps in KSP used to estimate eigenvalues */
     16:   PetscBool        usenoisy;    /* use noisy right hand side vector to estimate eigenvalues */
     17:   /* For tracking when to update the eigenvalue estimates */
     18:   PetscObjectId    amatid,    pmatid;
     19:   PetscObjectState amatstate, pmatstate;
     20: } KSP_Chebyshev;

     22: #endif