Actual source code: mpiaij.h

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

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

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

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

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

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

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

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

     44: } Mat_MPIAIJ;

     46: typedef struct { /* used by MatMatMult_MPIAIJ_MPIAIJ and MatPtAP_MPIAIJ_MPIAIJ for reusing symbolic mat product */
     47:   PetscInt    *startsj;
     48:   PetscScalar *bufa;
     49:   IS          isrowa,isrowb,iscolb;
     50:   Mat         *aseq,*bseq,C_seq; /* A_seq=aseq[0], B_seq=bseq[0] */
     51:   Mat         A_loc,B_seq;
     52:   Mat         B_loc,B_oth;  /* partial B_seq -- intend to replace B_seq */
     53:   PetscInt    brstart; /* starting owned rows of B in matrix bseq[0]; brend = brstart+B->m */
     54:   PetscInt    *abi,*abj; /* symbolic i and j arrays of the local product A_loc*B_seq */
     55:   PetscInt    abnz_max;  /* max(abi[i+1] - abi[i]), max num of nnz in a row of A_loc*B_seq */
     56:   MatReuse    reuse;
     57:   PetscErrorCode (*MatDestroy)(Mat);
     58: } Mat_MatMatMultMPI;

     60: typedef struct { /* used by MatMerge_SeqsToMPI for reusing the merged matrix */
     61:   PetscMap     rowmap;
     62:   PetscInt     **buf_ri,**buf_rj;
     63:   PetscMPIInt  *len_s,*len_r,*id_r; /* array of length of comm->size, store send/recv matrix values */
     64:   PetscMPIInt  nsend,nrecv;
     65:   PetscInt     *bi,*bj; /* i and j array of the local portion of mpi C=P^T*A*P */
     66:   PetscInt     *owners_co,*coi,*coj; /* i and j array of (p->B)^T*A*P - used in the communication */
     67: } Mat_Merge_SeqsToMPI;

     69: EXTERN PetscErrorCode MatSetColoring_MPIAIJ(Mat,ISColoring);
     70: EXTERN PetscErrorCode MatSetValuesAdic_MPIAIJ(Mat,void*);
     71: EXTERN PetscErrorCode MatSetValuesAdifor_MPIAIJ(Mat,PetscInt,void*);
     72: EXTERN PetscErrorCode MatSetUpMultiply_MPIAIJ(Mat);
     73: EXTERN PetscErrorCode DisAssemble_MPIAIJ(Mat);
     74: EXTERN PetscErrorCode MatDuplicate_MPIAIJ(Mat,MatDuplicateOption,Mat *);
     75: EXTERN PetscErrorCode MatIncreaseOverlap_MPIAIJ(Mat,PetscInt,IS [],PetscInt);
     76: EXTERN PetscErrorCode MatFDColoringCreate_MPIAIJ(Mat,ISColoring,MatFDColoring);
     77: EXTERN PetscErrorCode MatGetSubMatrices_MPIAIJ (Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]);
     78: EXTERN PetscErrorCode MatGetSubMatrix_MPIAIJ (Mat,IS,IS,PetscInt,MatReuse,Mat *);
     79: EXTERN PetscErrorCode MatLoad_MPIAIJ(PetscViewer, MatType,Mat*);
     80: EXTERN PetscErrorCode MatMatMult_MPIAIJ_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*);
     81: EXTERN PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
     82: EXTERN PetscErrorCode MatMatMultNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);
     83: EXTERN PetscErrorCode MatPtAPSymbolic_MPIAIJ(Mat,Mat,PetscReal,Mat*);
     84: EXTERN PetscErrorCode MatPtAPNumeric_MPIAIJ(Mat,Mat,Mat);
     85: EXTERN PetscErrorCode MatPtAPSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
     86: EXTERN PetscErrorCode MatPtAPNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);
     87: EXTERN PetscErrorCode MatSetValues_MPIAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar [],InsertMode);
     88: EXTERN PetscErrorCode MatDestroy_MPIAIJ_MatMatMult(Mat);
     89: EXTERN PetscErrorCode PetscObjectContainerDestroy_Mat_MatMatMultMPI(void*);

     92: #if !defined(PETSC_USE_COMPLEX) && !defined(PETSC_USE_SINGLE) && !defined(PETSC_USE_MAT_SINGLE)
     93: EXTERN PetscErrorCode MatLUFactorSymbolic_MPIAIJ_TFS(Mat,IS,IS,MatFactorInfo*,Mat*);
     94: #endif

     97: EXTERN PetscErrorCode PETSCMAT_DLLEXPORT MatGetDiagonalBlock_MPIAIJ(Mat,PetscTruth *,MatReuse,Mat *);
     98: EXTERN PetscErrorCode PETSCMAT_DLLEXPORT MatDiagonalScaleLocal_MPIAIJ(Mat,Vec);

    101: #endif