Actual source code: petscscalapack.h

  1: #pragma once

  3: #include <petsc/private/matimpl.h>
  4: #include <petscblaslapack.h>

  6: typedef struct {
  7:   PetscBLASInt ictxt;            /* process grid context */
  8:   PetscBLASInt nprow, npcol;     /* number of process rows and columns */
  9:   PetscBLASInt myrow, mycol;     /* coordinates of local process on the grid */
 10:   PetscInt     grid_refct;       /* reference count */
 11:   PetscBLASInt ictxrow, ictxcol; /* auxiliary 1d process grid contexts */
 12: } Mat_ScaLAPACK_Grid;

 14: typedef struct {
 15:   Mat_ScaLAPACK_Grid *grid;        /* process grid */
 16:   PetscBLASInt        desc[9];     /* ScaLAPACK descriptor */
 17:   PetscBLASInt        M, N;        /* global dimensions, for rows and columns */
 18:   PetscBLASInt        locr, locc;  /* dimensions of local array */
 19:   PetscBLASInt        mb, nb;      /* block size, for rows and columns */
 20:   PetscBLASInt        rsrc, csrc;  /* coordinates of process owning first row and column */
 21:   PetscScalar        *loc;         /* pointer to local array */
 22:   PetscBLASInt        lld;         /* local leading dimension */
 23:   PetscBLASInt       *pivots;      /* pivots in LU factorization */
 24:   PetscBool           roworiented; /* if true, row-oriented input (default) */
 25: } Mat_ScaLAPACK;

 27: PETSC_INTERN PetscErrorCode MatMatMultSymbolic_ScaLAPACK(Mat, Mat, PetscReal, Mat);
 28: PETSC_INTERN PetscErrorCode MatMatMultNumeric_ScaLAPACK(Mat, Mat, Mat);

 30: /* Macro to check nonzero info after ScaLAPACK call */
 31: #define PetscCheckScaLapackInfo(routine, info) \
 32:   do { \
 33:     PetscCheck(!info, PETSC_COMM_SELF, PETSC_ERR_LIB, "Error in ScaLAPACK subroutine %s: info=%d", routine, (int)info); \
 34:   } while (0)

 36: #define PETSC_PASTE4_(a, b, c, d) a##b##c##d
 37: #define PETSC_PASTE4(a, b, c, d)  PETSC_PASTE4_(a, b, c, d)

 39: #if defined(PETSC_BLASLAPACK_CAPS)
 40:   #define PETSC_SCALAPACK_PREFIX_ P
 41:   #define PETSCBLASNOTYPE(x, X)   PETSC_PASTE2(X, PETSC_BLASLAPACK_SUFFIX_)
 42:   #define PETSCSCALAPACK(x, X)    PETSC_PASTE4(PETSC_SCALAPACK_PREFIX_, PETSC_BLASLAPACK_PREFIX_, X, PETSC_BLASLAPACK_SUFFIX_)
 43: #else
 44:   #define PETSC_SCALAPACK_PREFIX_ p
 45:   #define PETSCBLASNOTYPE(x, X)   PETSC_PASTE2(x, PETSC_BLASLAPACK_SUFFIX_)
 46:   #define PETSCSCALAPACK(x, X)    PETSC_PASTE4(PETSC_SCALAPACK_PREFIX_, PETSC_BLASLAPACK_PREFIX_, x, PETSC_BLASLAPACK_SUFFIX_)
 47: #endif

 49: /* BLACS routines (C interface) */
 50: BLAS_EXTERN PetscBLASInt Csys2blacs_handle(MPI_Comm syscontext);
 51: BLAS_EXTERN void         Cblacs_pinfo(PetscBLASInt *mypnum, PetscBLASInt *nprocs);
 52: BLAS_EXTERN void         Cblacs_get(PetscBLASInt context, PetscBLASInt request, PetscBLASInt *value);
 53: BLAS_EXTERN PetscBLASInt Cblacs_pnum(PetscBLASInt context, PetscBLASInt prow, PetscBLASInt pcol);
 54: BLAS_EXTERN PetscBLASInt Cblacs_gridinit(PetscBLASInt *context, const char *order, PetscBLASInt np_row, PetscBLASInt np_col);
 55: BLAS_EXTERN void         Cblacs_gridinfo(PetscBLASInt context, PetscBLASInt *np_row, PetscBLASInt *np_col, PetscBLASInt *my_row, PetscBLASInt *my_col);
 56: BLAS_EXTERN void         Cblacs_gridexit(PetscBLASInt context);
 57: BLAS_EXTERN void         Cblacs_exit(PetscBLASInt error_code);
 58: BLAS_EXTERN void         Cdgebs2d(PetscBLASInt ctxt, const char *scope, const char *top, PetscBLASInt m, PetscBLASInt n, PetscScalar *A, PetscBLASInt lda);
 59: BLAS_EXTERN void         Cdgebr2d(PetscBLASInt ctxt, const char *scope, const char *top, PetscBLASInt m, PetscBLASInt n, PetscScalar *A, PetscBLASInt lda, PetscBLASInt rsrc, PetscBLASInt csrc);
 60: BLAS_EXTERN void         Cdgsum2d(PetscBLASInt ctxt, const char *scope, const char *top, PetscBLASInt m, PetscBLASInt n, PetscScalar *A, PetscBLASInt lda, PetscBLASInt rsrc, PetscBLASInt csrc);

 62: /* PBLAS */
 63: #define PBLASgemv_ PETSCSCALAPACK(gemv, GEMV)
 64: #define PBLASgemm_ PETSCSCALAPACK(gemm, GEMM)
 65: #if defined(PETSC_USE_COMPLEX)
 66:   #define PBLAStran_ PETSCSCALAPACK(tranc, TRANC)
 67: #else
 68:   #define PBLAStran_ PETSCSCALAPACK(tran, TRAN)
 69: #endif

 71: BLAS_EXTERN void PBLASgemv_(const char *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 72: BLAS_EXTERN void PBLASgemm_(const char *, const char *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 73: BLAS_EXTERN void PBLAStran_(PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);

 75: /* ScaLAPACK */
 76: #define SCALAPACKlange_ PETSCSCALAPACK(lange, LANGE)
 77: #define SCALAPACKpotrf_ PETSCSCALAPACK(potrf, POTRF)
 78: #define SCALAPACKpotrs_ PETSCSCALAPACK(potrs, POTRS)
 79: #define SCALAPACKgetrf_ PETSCSCALAPACK(getrf, GETRF)
 80: #define SCALAPACKgetrs_ PETSCSCALAPACK(getrs, GETRS)

 82: BLAS_EXTERN PetscReal SCALAPACKlange_(const char *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *);
 83: BLAS_EXTERN void      SCALAPACKpotrf_(const char *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 84: BLAS_EXTERN void      SCALAPACKpotrs_(const char *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 85: BLAS_EXTERN void      SCALAPACKgetrf_(PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 86: BLAS_EXTERN void      SCALAPACKgetrs_(const char *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);

 88: /* auxiliary routines */
 89: #define SCALAPACKnumroc_   PETSCBLASNOTYPE(numroc, NUMROC)
 90: #define SCALAPACKdescinit_ PETSCBLASNOTYPE(descinit, DESCINIT)
 91: #define SCALAPACKinfog2l_  PETSCBLASNOTYPE(infog2l, INFOG2L)
 92: #define SCALAPACKgemr2d_   PETSCSCALAPACK(gemr2d, GEMR2D)
 93: #define SCALAPACKmatadd_   PETSCSCALAPACK(matadd, MATADD)
 94: #define SCALAPACKelset_    PETSCSCALAPACK(elset, ELSET)
 95: #define SCALAPACKelget_    PETSCSCALAPACK(elget, ELGET)

 97: BLAS_EXTERN PetscBLASInt SCALAPACKnumroc_(PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 98: BLAS_EXTERN void         SCALAPACKdescinit_(PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
 99: BLAS_EXTERN void         SCALAPACKinfog2l_(PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
100: BLAS_EXTERN void         SCALAPACKgemr2d_(PetscBLASInt *, PetscBLASInt *, const PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
101: BLAS_EXTERN void         SCALAPACKmatadd_(PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);
102: BLAS_EXTERN void         SCALAPACKelset_(PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *, PetscScalar *);
103: BLAS_EXTERN void         SCALAPACKelget_(const char *, const char *, PetscScalar *, PetscScalar *, PetscBLASInt *, PetscBLASInt *, PetscBLASInt *);

105: /*
106:     Macros to test valid arguments
107: */
108: #if !defined(PETSC_USE_DEBUG)

110:   #define MatScaLAPACKCheckDistribution(a, arga, b, argb) \
111:     do { \
112:       (void)(a); \
113:       (void)(b); \
114:     } while (0)

116: #else

118:   #define MatScaLAPACKCheckDistribution(a, arga, b, argb) \
119:     do { \
120:       Mat_ScaLAPACK *_aa = (Mat_ScaLAPACK *)(a)->data, *_bb = (Mat_ScaLAPACK *)(b)->data; \
121:       PetscCheck(_aa->mb == _bb->mb && _aa->nb == _bb->nb && _aa->rsrc == _bb->rsrc && _aa->csrc == _bb->csrc && _aa->grid->nprow == _bb->grid->nprow && _aa->grid->npcol == _bb->grid->npcol && _aa->grid->myrow == _bb->grid->myrow && \
122:                    _aa->grid->mycol == _bb->grid->mycol, \
123:                  PetscObjectComm((PetscObject)(a)), PETSC_ERR_ARG_INCOMP, "Arguments #%d and #%d have different ScaLAPACK distribution", arga, argb); \
124:     } while (0)

126: #endif