Actual source code: mpiaij.h


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

  8: typedef struct {
  9:   Mat           A,B;                   /* local submatrices: A (diag part),
 10:                                            B (off-diag part) */
 11:   PetscMPIInt   size;                   /* size of communicator */
 12:   PetscMPIInt   rank;                   /* rank of proc in communicator */

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

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

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

 31:   Vec           lvec;              /* local vector */
 32:   Vec           diag;
 33:   VecScatter    Mvctx;             /* scatter context for vector */
 34:   PetscBool     roworiented;       /* if true, row-oriented input, default true */

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

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

 42:   /* Used by MatDistribute_MPIAIJ() to allow reuse of previous matrix allocation  and nonzero pattern */
 43:   PetscInt      *ld;               /* number of entries per row left of diagona block */
 44: } Mat_MPIAIJ;

 46: typedef struct { /* used by MatMatMult_MPIAIJ_MPIAIJ and MatPtAP_MPIAIJ_MPIAIJ for reusing symbolic mat product */
 47:   PetscInt       *startsj,*startsj_r;
 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 (*destroy)(Mat);
 58:   PetscErrorCode (*duplicate)(Mat,MatDuplicateOption,Mat*);
 59: } Mat_MatMatMultMPI;

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

 72: extern PetscErrorCode MatSetColoring_MPIAIJ(Mat,ISColoring);
 73: extern PetscErrorCode MatSetValuesAdic_MPIAIJ(Mat,void*);
 74: extern PetscErrorCode MatSetValuesAdifor_MPIAIJ(Mat,PetscInt,void*);
 75: extern PetscErrorCode MatSetUpMultiply_MPIAIJ(Mat);
 76: extern PetscErrorCode DisAssemble_MPIAIJ(Mat);
 77: extern PetscErrorCode MatDuplicate_MPIAIJ(Mat,MatDuplicateOption,Mat *);
 78: extern PetscErrorCode MatIncreaseOverlap_MPIAIJ(Mat,PetscInt,IS [],PetscInt);
 79: extern PetscErrorCode MatFDColoringCreate_MPIAIJ(Mat,ISColoring,MatFDColoring);
 80: extern PetscErrorCode MatGetSubMatrices_MPIAIJ (Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]);
 81: extern PetscErrorCode MatGetSubMatrix_MPIAIJ_All(Mat,MatGetSubMatrixOption,MatReuse,Mat *[]);
 82: extern PetscErrorCode MatGetSubMatricesParallel_MPIAIJ (Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]);

 84: extern PetscErrorCode MatGetSubMatrix_MPIAIJ(Mat,IS,IS,MatReuse,Mat *);
 85: extern PetscErrorCode MatGetSubMatrix_MPIAIJ_Private (Mat,IS,IS,PetscInt,MatReuse,Mat *);
 86: extern PetscErrorCode MatGetMultiProcBlock_MPIAIJ(Mat,MPI_Comm,Mat*);

 88: extern PetscErrorCode MatLoad_MPIAIJ(Mat,PetscViewer);
 89: extern PetscErrorCode MatMatMult_MPIAIJ_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*);
 90: extern PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
 91: extern PetscErrorCode MatMatMultNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);
 92: extern PetscErrorCode MatPtAPSymbolic_MPIAIJ(Mat,Mat,PetscReal,Mat*);
 93: extern PetscErrorCode MatPtAPNumeric_MPIAIJ(Mat,Mat,Mat);
 94: extern PetscErrorCode MatPtAPSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
 95: extern PetscErrorCode MatPtAPNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);
 96: extern PetscErrorCode MatSetValues_MPIAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar [],InsertMode);
 97: extern PetscErrorCode MatDestroy_MPIAIJ_MatMatMult(Mat);
 98: extern PetscErrorCode PetscContainerDestroy_Mat_MatMatMultMPI(void*);
 99: extern PetscErrorCode MatGetRedundantMatrix_MPIAIJ(Mat,PetscInt,MPI_Comm,PetscInt,MatReuse,Mat*);
100: extern PetscErrorCode MatGetSeqNonzeroStructure_MPIAIJ(Mat,Mat*);

102: EXTERN_C_BEGIN
103: extern PetscErrorCode MatMPIAIJSetPreallocation_MPIAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[]);
104: EXTERN_C_END

106: #if !defined(PETSC_USE_COMPLEX) && !defined(PETSC_USE_REAL_SINGLE) && !defined(PETSC_USE_REAL___FLOAT128)
107: extern PetscErrorCode MatLUFactorSymbolic_MPIAIJ_TFS(Mat,IS,IS,const MatFactorInfo*,Mat*);
108: #endif
109: extern PetscErrorCode MatSolve_MPIAIJ(Mat,Vec,Vec);
110: extern PetscErrorCode MatILUFactor_MPIAIJ(Mat,IS,IS,const MatFactorInfo *);

112: EXTERN_C_BEGIN
113: extern PetscErrorCode  MatGetDiagonalBlock_MPIAIJ(Mat,Mat *);
114: extern PetscErrorCode  MatDiagonalScaleLocal_MPIAIJ(Mat,Vec);
115: EXTERN_C_END

117: #endif