1: /* $Id: mpiaij.h,v 1.23 2001/08/07 03:02:49 balay Exp $ */


 6:  #include src/mat/impls/aij/seq/aij.h
 7:  #include src/sys/ctable.h

  9: typedef struct {
 10:   int           *rowners,*cowners;     /* ranges owned by each processor */
 11:   int           rstart,rend;           /* starting and ending owned rows */
 12:   int           cstart,cend;           /* starting and ending owned columns */
 13:   Mat           A,B;                   /* local submatrices: A (diag part),
 14:                                            B (off-diag part) */
 15:   int           size;                   /* size of communicator */
 16:   int           rank;                   /* rank of proc in communicator */

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

 20:   PetscTruth    donotstash;             /* PETSC_TRUE if off processor entries dropped */
 21:   MPI_Request   *send_waits;            /* array of send requests */
 22:   MPI_Request   *recv_waits;            /* array of receive requests */
 23:   int           nsends,nrecvs;         /* numbers of sends and receives */
 24:   PetscScalar   *svalues,*rvalues;     /* sending and receiving data */
 25:   int           rmax;                   /* maximum message length */
 26: #if defined (PETSC_USE_CTABLE)
 27:   PetscTable    colmap;
 28: #else
 29:   int           *colmap;                /* local col number of off-diag col */
 30: #endif
 31:   int           *garray;                /* global index of all off-processor columns */

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

 35:   Vec           lvec;              /* local vector */
 36:   VecScatter    Mvctx;             /* scatter context for vector */
 37:   PetscTruth    roworiented;       /* if true, row-oriented input, default true */

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

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

 45: } Mat_MPIAIJ;

 47: EXTERN int MatSetColoring_MPIAIJ(Mat,ISColoring);
 48: EXTERN int MatSetValuesAdic_MPIAIJ(Mat,void*);
 49: EXTERN int MatSetValuesAdifor_MPIAIJ(Mat,int,void*);


 52: #endif