Date: 2013-09-02T10:10:41+00:00

Actual source code: stimpl.h

      1: /*
      2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
      4:    Copyright (c) , Universitat Politecnica de Valencia, Spain

      6:    This file is part of SLEPc.

      8:    SLEPc is free software: you can redistribute it and/or modify it under  the
      9:    terms of version 3 of the GNU Lesser General Public License as published by
     10:    the Free Software Foundation.

     12:    SLEPc  is  distributed in the hope that it will be useful, but WITHOUT  ANY
     13:    WARRANTY;  without even the implied warranty of MERCHANTABILITY or  FITNESS
     14:    FOR  A  PARTICULAR PURPOSE. See the GNU Lesser General Public  License  for
     15:    more details.

     17:    You  should have received a copy of the GNU Lesser General  Public  License
     18:    along with SLEPc. If not, see <http://www.gnu.org/licenses/>.
     19:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
     20: */

     22: #if !defined(_STIMPL)
     23: #define _STIMPL

     25: #include <slepcst.h>
     26: #include <slepc-private/slepcimpl.h>

     28: PETSC_EXTERN PetscLogEvent ST_SetUp,ST_Apply,ST_ApplyTranspose;

     30: typedef struct _STOps *STOps;

     32: struct _STOps {
     33:   PetscErrorCode (*setup)(ST);
     34:   PetscErrorCode (*apply)(ST,Vec,Vec);
     35:   PetscErrorCode (*getbilinearform)(ST,Mat*);
     36:   PetscErrorCode (*applytrans)(ST,Vec,Vec);
     37:   PetscErrorCode (*setshift)(ST,PetscScalar);
     38:   PetscErrorCode (*setfromoptions)(ST);
     39:   PetscErrorCode (*postsolve)(ST);
     40:   PetscErrorCode (*backtransform)(ST,PetscInt,PetscScalar*,PetscScalar*);
     41:   PetscErrorCode (*destroy)(ST);
     42:   PetscErrorCode (*reset)(ST);
     43:   PetscErrorCode (*view)(ST,PetscViewer);
     44:   PetscErrorCode (*checknullspace)(ST,PetscInt,const Vec[]);
     45: };

     47: struct _p_ST {
     48:   PETSCHEADER(struct _STOps);
     49:   /*------------------------- User parameters --------------------------*/
     50:   Mat          *A;               /* Matrices which define the eigensystem */
     51:   PetscInt     *Astate;          /* State (to identify the original matrices) */
     52:   Mat          *T;               /* Matrices resulting from transformation */
     53:   PetscInt     nmat;             /* Number of matrices */
     54:   PetscScalar  sigma;            /* Value of the shift */
     55:   PetscBool    sigma_set;        /* whether the user provided the shift or not */
     56:   PetscScalar  defsigma;         /* Default value of the shift */
     57:   STMatMode    shift_matrix;
     58:   MatStructure str;              /* whether matrices have the same pattern or not */

     60:   /*------------------------- Misc data --------------------------*/
     61:   KSP          ksp;
     62:   PetscInt     kspidx;           /* which T matrix is associated to ksp */
     63:   Vec          w;
     64:   Vec          D;                /* diagonal matrix for balancing */
     65:   Vec          wb;               /* balancing requires an extra work vector */
     66:   void         *data;
     67:   PetscInt     setupcalled;
     68:   PetscInt     lineariterations;
     69:   PetscInt     applys;
     70: };

     72: PETSC_INTERN PetscErrorCode STGetBilinearForm_Default(ST,Mat*);
     73: PETSC_INTERN PetscErrorCode STCheckNullSpace_Default(ST,PetscInt,const Vec[]);
     74: PETSC_INTERN PetscErrorCode STMatShellCreate(ST,PetscScalar,PetscInt,PetscInt*,Mat*);
     75: PETSC_INTERN PetscErrorCode STMatShellShift(Mat,PetscScalar);
     76: PETSC_INTERN PetscErrorCode STMatSetHermitian(ST,Mat);
     77: PETSC_INTERN PetscErrorCode STMatGAXPY_Private(ST,PetscScalar,PetscScalar,PetscInt,PetscInt,PetscBool);

     79: #endif