Date: 2016-03-29T14:59:35+00:00

Actual source code: slepcds.h
slepc-3.6.3 2016-03-29
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      1: /*
      2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
      4:    Copyright (c) 2002-2015, 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: */

     24: #include <slepcsc.h>
     25: #include <slepcfn.h>

     27: #define DS_MAX_SOLVE 6

     29: PETSC_EXTERN PetscErrorCode DSInitializePackage(void);
     30: /*S
     31:     DS - Direct solver (or dense system), to represent low-dimensional
     32:     eigenproblems that must be solved within iterative solvers. This is an
     33:     auxiliary object and is not normally needed by application programmers.

     35:     Level: beginner

     37: .seealso:  DSCreate()
     38: S*/
     39: typedef struct _p_DS* DS;

     41: /*J
     42:     DSType - String with the name of the type of direct solver. Roughly,
     43:     there are as many types as problem types are available within SLEPc.

     45:     Level: advanced

     47: .seealso: DSSetType(), DS
     48: J*/
     49: typedef const char* DSType;
     50: #define DSHEP             "hep"
     51: #define DSNHEP            "nhep"
     52: #define DSGHEP            "ghep"
     53: #define DSGHIEP           "ghiep"
     54: #define DSGNHEP           "gnhep"
     55: #define DSSVD             "svd"
     56: #define DSPEP             "pep"
     57: #define DSNEP             "nep"

     59: /* Logging support */
     60: PETSC_EXTERN PetscClassId DS_CLASSID;

     62: /*E
     63:     DSStateType - Indicates in which state the direct solver is

     65:     Level: advanced

     67: .seealso: DSSetState()
     68: E*/
     69: typedef enum { DS_STATE_RAW,
     70:                DS_STATE_INTERMEDIATE,
     71:                DS_STATE_CONDENSED,
     72:                DS_STATE_TRUNCATED } DSStateType;

     74: /*E
     75:     DSMatType - Used to refer to one of the matrices stored internally in DS

     77:     Notes:
     78:     The matrices preferently refer to
     79: +   DS_MAT_A  - first matrix of eigenproblem/singular value problem
     80: .   DS_MAT_B  - second matrix of a generalized eigenproblem
     81: .   DS_MAT_C  - third matrix of a quadratic eigenproblem
     82: .   DS_MAT_T  - tridiagonal matrix
     83: .   DS_MAT_D  - diagonal matrix
     84: .   DS_MAT_Q  - orthogonal matrix of (right) Schur vectors
     85: .   DS_MAT_Z  - orthogonal matrix of left Schur vectors
     86: .   DS_MAT_X  - right eigenvectors
     87: .   DS_MAT_Y  - left eigenvectors
     88: .   DS_MAT_U  - left singular vectors
     89: .   DS_MAT_VT - right singular vectors
     90: .   DS_MAT_W  - workspace matrix
     91: -   DS_MAT_Ex - extra matrices (x=0,..,9)

     93:     All matrices can have space to hold ld x ld elements, except for
     94:     DS_MAT_T that has space for 3 x ld elements (ld = leading dimension)
     95:     and DS_MAT_D that has space for just ld elements.

     97:     In DSPEP problems, matrices A, B, W can have space for d*ld x d*ld,
     98:     where d is the polynomial degree, and X can have ld x d*ld.

    100:     Level: advanced

    102: .seealso: DSAllocate(), DSGetArray(), DSGetArrayReal(), DSVectors()
    103: E*/
    104: typedef enum { DS_MAT_A,
    105:                DS_MAT_B,
    106:                DS_MAT_C,
    107:                DS_MAT_T,
    108:                DS_MAT_D,
    109:                DS_MAT_Q,
    110:                DS_MAT_Z,
    111:                DS_MAT_X,
    112:                DS_MAT_Y,
    113:                DS_MAT_U,
    114:                DS_MAT_VT,
    115:                DS_MAT_W,
    116:                DS_MAT_E0,
    117:                DS_MAT_E1,
    118:                DS_MAT_E2,
    119:                DS_MAT_E3,
    120:                DS_MAT_E4,
    121:                DS_MAT_E5,
    122:                DS_MAT_E6,
    123:                DS_MAT_E7,
    124:                DS_MAT_E8,
    125:                DS_MAT_E9,
    126:                DS_NUM_MAT } DSMatType;

    128: /* Convenience for indexing extra matrices */
    129: PETSC_EXTERN DSMatType DSMatExtra[];
    130: #define DS_NUM_EXTRA  10

    132: PETSC_EXTERN PetscErrorCode DSCreate(MPI_Comm,DS*);
    133: PETSC_EXTERN PetscErrorCode DSSetType(DS,DSType);
    134: PETSC_EXTERN PetscErrorCode DSGetType(DS,DSType*);
    135: PETSC_EXTERN PetscErrorCode DSSetOptionsPrefix(DS,const char *);
    136: PETSC_EXTERN PetscErrorCode DSAppendOptionsPrefix(DS,const char *);
    137: PETSC_EXTERN PetscErrorCode DSGetOptionsPrefix(DS,const char *[]);
    138: PETSC_EXTERN PetscErrorCode DSSetFromOptions(DS);
    139: PETSC_EXTERN PetscErrorCode DSView(DS,PetscViewer);
    140: PETSC_EXTERN PetscErrorCode DSViewMat(DS,PetscViewer,DSMatType);
    141: PETSC_EXTERN PetscErrorCode DSDestroy(DS*);
    142: PETSC_EXTERN PetscErrorCode DSReset(DS);

    144: PETSC_EXTERN PetscErrorCode DSAllocate(DS,PetscInt);
    145: PETSC_EXTERN PetscErrorCode DSGetLeadingDimension(DS,PetscInt*);
    146: PETSC_EXTERN PetscErrorCode DSSetState(DS,DSStateType);
    147: PETSC_EXTERN PetscErrorCode DSGetState(DS,DSStateType*);
    148: PETSC_EXTERN PetscErrorCode DSSetDimensions(DS,PetscInt,PetscInt,PetscInt,PetscInt);
    149: PETSC_EXTERN PetscErrorCode DSGetDimensions(DS,PetscInt*,PetscInt*,PetscInt*,PetscInt*,PetscInt*);
    150: PETSC_EXTERN PetscErrorCode DSSetBlockSize(DS,PetscInt);
    151: PETSC_EXTERN PetscErrorCode DSGetBlockSize(DS,PetscInt*);
    152: PETSC_EXTERN PetscErrorCode DSTruncate(DS,PetscInt);
    153: PETSC_EXTERN PetscErrorCode DSSetIdentity(DS,DSMatType);
    154: PETSC_EXTERN PetscErrorCode DSSetMethod(DS,PetscInt);
    155: PETSC_EXTERN PetscErrorCode DSGetMethod(DS,PetscInt*);
    156: PETSC_EXTERN PetscErrorCode DSSetCompact(DS,PetscBool);
    157: PETSC_EXTERN PetscErrorCode DSGetCompact(DS,PetscBool*);
    158: PETSC_EXTERN PetscErrorCode DSSetExtraRow(DS,PetscBool);
    159: PETSC_EXTERN PetscErrorCode DSGetExtraRow(DS,PetscBool*);
    160: PETSC_EXTERN PetscErrorCode DSSetRefined(DS,PetscBool);
    161: PETSC_EXTERN PetscErrorCode DSGetRefined(DS,PetscBool*);
    162: PETSC_EXTERN PetscErrorCode DSGetMat(DS,DSMatType,Mat*);
    163: PETSC_EXTERN PetscErrorCode DSRestoreMat(DS,DSMatType,Mat*);
    164: PETSC_EXTERN PetscErrorCode DSGetArray(DS,DSMatType,PetscScalar*[]);
    165: PETSC_EXTERN PetscErrorCode DSRestoreArray(DS,DSMatType,PetscScalar*[]);
    166: PETSC_EXTERN PetscErrorCode DSGetArrayReal(DS,DSMatType,PetscReal*[]);
    167: PETSC_EXTERN PetscErrorCode DSRestoreArrayReal(DS,DSMatType,PetscReal*[]);
    168: PETSC_EXTERN PetscErrorCode DSVectors(DS,DSMatType,PetscInt*,PetscReal*);
    169: PETSC_EXTERN PetscErrorCode DSSolve(DS,PetscScalar*,PetscScalar*);
    170: PETSC_EXTERN PetscErrorCode DSSort(DS,PetscScalar*,PetscScalar*,PetscScalar*,PetscScalar*,PetscInt*);
    171: PETSC_EXTERN PetscErrorCode DSCopyMat(DS,DSMatType,PetscInt,PetscInt,Mat,PetscInt,PetscInt,PetscInt,PetscInt,PetscBool);
    172: PETSC_EXTERN PetscErrorCode DSSetSlepcSC(DS,SlepcSC);
    173: PETSC_EXTERN PetscErrorCode DSGetSlepcSC(DS,SlepcSC*);
    174: PETSC_EXTERN PetscErrorCode DSUpdateExtraRow(DS);
    175: PETSC_EXTERN PetscErrorCode DSCond(DS,PetscReal*);
    176: PETSC_EXTERN PetscErrorCode DSTranslateHarmonic(DS,PetscScalar,PetscReal,PetscBool,PetscScalar*,PetscReal*);
    177: PETSC_EXTERN PetscErrorCode DSTranslateRKS(DS,PetscScalar);
    178: PETSC_EXTERN PetscErrorCode DSNormalize(DS,DSMatType,PetscInt);

    180: /* --------- options specific to particular solvers -------- */

    182: PETSC_EXTERN PetscErrorCode DSPEPSetDegree(DS,PetscInt);
    183: PETSC_EXTERN PetscErrorCode DSPEPGetDegree(DS,PetscInt*);

    185: PETSC_EXTERN PetscErrorCode DSNEPSetFN(DS,PetscInt,FN*);
    186: PETSC_EXTERN PetscErrorCode DSNEPGetFN(DS,PetscInt,FN*);
    187: PETSC_EXTERN PetscErrorCode DSNEPGetNumFN(DS,PetscInt*);

    189: PETSC_EXTERN PetscFunctionList DSList;
    190: PETSC_EXTERN PetscErrorCode DSRegister(const char[],PetscErrorCode(*)(DS));

    192: #endif