1: /* $Id: mpibaij.h,v 1.30 2001/08/07 03:02:58 balay Exp $ */

 3:  #include src/mat/impls/baij/seq/baij.h
 4:  #include src/sys/ctable.h


  9: typedef struct {
 10:   int           *rowners,*cowners;      /* ranges owned by each processor, in blocks */
 11:   int           *rowners_bs;            /* rowners*bs */
 12:   int           rstart,rend;           /* starting and ending owned rows */
 13:   int           cstart,cend;           /* starting and ending owned columns */
 14:   Mat           A,B;                   /* local submatrices: A (diag part),
 15:                                            B (off-diag part) */
 16:   int           size;                   /* size of communicator */
 17:   int           rank;                   /* rank of proc in communicator */
 18:   int           bs,bs2;                /* block size, bs2 = bs*bs */
 19:   int           Mbs,Nbs;               /* number block rows/cols in matrix; M/bs, N/bs */
 20:   int           mbs,nbs;               /* number block rows/cols on processor; m/bs, n/bs */

 22:   /* The following variables are used for matrix assembly */

 24:   PetscTruth    donotstash;             /* if 1, off processor entries dropped */
 25:   MPI_Request   *send_waits;            /* array of send requests */
 26:   MPI_Request   *recv_waits;            /* array of receive requests */
 27:   int           nsends,nrecvs;         /* numbers of sends and receives */
 28:   MatScalar     *svalues,*rvalues;     /* sending and receiving data */
 29:   int           rmax;                   /* maximum message length */
 30: #if defined (PETSC_USE_CTABLE)
 31:   PetscTable    colmap;
 32: #else
 33:   int           *colmap;                /* local col number of off-diag col */
 34: #endif
 35:   int           *garray;                /* work array */

 37:   /* The following variable is used by blocked matrix assembly */
 38:   MatScalar     *barray;                /* Block array of size bs2 */

 40:   /* The following variables are used for matrix-vector products */

 42:   Vec           lvec;              /* local vector */
 43:   VecScatter    Mvctx;             /* scatter context for vector */
 44:   PetscTruth    roworiented;       /* if true, row-oriented input, default true */

 46:   /* The following variables are for MatGetRow() */

 48:   int           *rowindices;       /* column indices for row */
 49:   PetscScalar   *rowvalues;        /* nonzero values in row */
 50:   PetscTruth    getrowactive;      /* indicates MatGetRow(), not restored */

 52:   /* Some variables to make MatSetValues and others more efficient */
 53:   int           rstart_bs,rend_bs;
 54:   int           cstart_bs,cend_bs;
 55:   int           *ht;                      /* Hash table to speed up matrix assembly */
 56:   MatScalar     **hd;                     /* Hash table data */
 57:   int           ht_size;
 58:   int           ht_total_ct,ht_insert_ct; /* Hash table statistics */
 59:   PetscTruth    ht_flag;                  /* Flag to indicate if hash tables are used */
 60:   double        ht_fact;                  /* Factor to determine the HT size */

 62: #if defined(PETSC_USE_MAT_SINGLE)
 63:   int           setvalueslen;
 64:   MatScalar     *setvaluescopy; /* area double precision values in MatSetValuesXXX() are copied
 65:                                       before calling MatSetValuesXXX_MPIBAIJ_MatScalar() */
 66: #endif
 67: } Mat_MPIBAIJ;


 70: #endif