Actual source code: dsimpl.h

  1: /*
  2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
  3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
  4:    Copyright (c) 2002-2012, Universitat Politecnica de Valencia, Spain

  6:    This file is part of SLEPc.
  7:       
  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: #ifndef _DSIMPL
 23: #define _DSIMPL

 25: #include <slepcds.h>

 27: PETSC_EXTERN PetscLogEvent DS_Solve,DS_Vectors,DS_Other;
 28: PETSC_EXTERN const char *DSMatName[];

 30: typedef struct _DSOps *DSOps;

 32: struct _DSOps {
 33:   PetscErrorCode (*allocate)(DS,PetscInt);
 34:   PetscErrorCode (*view)(DS,PetscViewer);
 35:   PetscErrorCode (*vectors)(DS,DSMatType,PetscInt*,PetscReal*);
 36:   PetscErrorCode (*solve[DS_MAX_SOLVE])(DS,PetscScalar*,PetscScalar*);
 37:   PetscErrorCode (*sort)(DS,PetscScalar*,PetscScalar*,PetscScalar*,PetscScalar*,PetscInt*);
 38:   PetscErrorCode (*truncate)(DS,PetscInt);
 39:   PetscErrorCode (*update)(DS);
 40:   PetscErrorCode (*cond)(DS,PetscReal*);
 41:   PetscErrorCode (*transharm)(DS,PetscScalar,PetscReal,PetscBool,PetscScalar*,PetscReal*);
 42:   PetscErrorCode (*transrks)(DS,PetscScalar);
 43:   PetscErrorCode (*normalize)(DS,DSMatType,PetscInt);
 44: };

 46: struct _p_DS {
 47:   PETSCHEADER(struct _DSOps);
 48:   PetscInt       method;             /* identifies the variant to be used */
 49:   PetscBool      compact;            /* whether the matrices are stored in compact form */
 50:   PetscBool      refined;            /* get refined vectors instead of regular vectors */
 51:   PetscBool      extrarow;           /* assume the matrix dimension is (n+1) x n */
 52:   PetscInt       ld;                 /* leading dimension */
 53:   PetscInt       l;                  /* number of locked (inactive) leading columns */
 54:   PetscInt       n;                  /* current dimension */
 55:   PetscInt       m;                  /* current column dimension (for SVD only) */
 56:   PetscInt       k;                  /* intermediate dimension (e.g. position of arrow) */
 57:   PetscInt       t;                  /* length of decomposition when it was truncated */
 58:   DSStateType    state;              /* the current state */
 59:   PetscScalar    *mat[DS_NUM_MAT];   /* the matrices */
 60:   PetscReal      *rmat[DS_NUM_MAT];  /* the matrices (real) */
 61:   PetscInt       *perm;              /* permutation */
 62:   PetscScalar    *work;
 63:   PetscReal      *rwork;
 64:   PetscBLASInt   *iwork;
 65:   PetscInt       lwork,lrwork,liwork;
 66:   PetscErrorCode (*comp_fun)(PetscScalar,PetscScalar,PetscScalar,PetscScalar,PetscInt*,void*);
 67:   void           *comp_ctx;
 68: };

 70: PETSC_EXTERN PetscErrorCode DSAllocateMat_Private(DS,DSMatType);
 71: PETSC_EXTERN PetscErrorCode DSAllocateMatReal_Private(DS,DSMatType);
 72: PETSC_EXTERN PetscErrorCode DSAllocateWork_Private(DS,PetscInt,PetscInt,PetscInt);
 73: PETSC_EXTERN PetscErrorCode DSViewMat_Private(DS,PetscViewer,DSMatType);
 74: PETSC_EXTERN PetscErrorCode DSSortEigenvalues_Private(DS,PetscScalar*,PetscScalar*,PetscInt*,PetscBool);
 75: PETSC_EXTERN PetscErrorCode DSSortEigenvaluesReal_Private(DS,PetscReal*,PetscInt*);
 76: PETSC_EXTERN PetscErrorCode DSPermuteColumns_Private(DS,PetscInt,PetscInt,DSMatType,PetscInt*);
 77: PETSC_EXTERN PetscErrorCode DSPermuteRows_Private(DS,PetscInt,PetscInt,DSMatType,PetscInt*);
 78: PETSC_EXTERN PetscErrorCode DSPermuteBoth_Private(DS,PetscInt,PetscInt,DSMatType,DSMatType,PetscInt*);
 79: PETSC_EXTERN PetscErrorCode DSCopyMatrix_Private(DS,DSMatType,DSMatType);
 80: PETSC_EXTERN PetscErrorCode DSSetIdentity(DS,DSMatType);
 81: PETSC_EXTERN PetscErrorCode DSOrthogonalize(DS,DSMatType,PetscInt,PetscInt*);
 82: PETSC_EXTERN PetscErrorCode DSPseudoOrthogonalize(DS,DSMatType,PetscInt,PetscReal*,PetscInt*,PetscReal*);

 84: #endif