Actual source code: mpiaij.h

petsc-3.3-p5 2012-12-01

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

  7: typedef struct { /* used by MatCreateMPIAIJSumSeqAIJ for reusing the merged matrix */
  8:   PetscLayout    rowmap;
  9:   PetscInt       **buf_ri,**buf_rj;
 10:   PetscMPIInt    *len_s,*len_r,*id_r; /* array of length of comm->size, store send/recv matrix values */
 11:   PetscMPIInt    nsend,nrecv;
 12:   PetscInt       *bi,*bj; /* i and j array of the local portion of mpi C (matrix product) - rename to ci, cj! */
 13:   PetscInt       *owners_co,*coi,*coj; /* i and j array of (p->B)^T*A*P - used in the communication */
 14:   PetscErrorCode (*destroy)(Mat);
 15:   PetscErrorCode (*duplicate)(Mat,MatDuplicateOption,Mat*);
 16: } Mat_Merge_SeqsToMPI;

 18: typedef struct { /* used by MatPtAP_MPIAIJ_MPIAIJ() and MatMatMult_MPIAIJ_MPIAIJ() */
 19:   PetscInt       *startsj_s,*startsj_r; /* used by MatGetBrowsOfAoCols_MPIAIJ */
 20:   PetscScalar    *bufa;                 /* used by MatGetBrowsOfAoCols_MPIAIJ */
 21:   Mat            P_loc,P_oth;  /* partial B_seq -- intend to replace B_seq */
 22:   PetscInt       *api,*apj;    /* symbolic i and j arrays of the local product A_loc*B_seq */
 23:   PetscInt       rmax;         /* max num of nnz in a local row of the matrix product */
 24:   MatReuse       reuse;        /* flag to skip MatGetBrowsOfAoCols_MPIAIJ() and MatMPIAIJGetLocalMat() in 1st call of MatPtAPNumeric_MPIAIJ_MPIAIJ() */
 25:   PetscScalar    *apa;         /* tmp array for store a row of A*P used in MatMatMult() */
 26:   Mat            A_loc;        /* used by MatTransposeMatMult(), contains api and apj */

 28:   Mat_Merge_SeqsToMPI *merge;
 29:   PetscErrorCode (*destroy)(Mat);
 30:   PetscErrorCode (*duplicate)(Mat,MatDuplicateOption,Mat*);
 31: } Mat_PtAPMPI;

 33: typedef struct {
 34:   Mat           A,B;                   /* local submatrices: A (diag part),
 35:                                            B (off-diag part) */
 36:   PetscMPIInt   size;                   /* size of communicator */
 37:   PetscMPIInt   rank;                   /* rank of proc in communicator */

 39:   /* The following variables are used for matrix assembly */
 40:   PetscBool     donotstash;             /* PETSC_TRUE if off processor entries dropped */
 41:   MPI_Request   *send_waits;            /* array of send requests */
 42:   MPI_Request   *recv_waits;            /* array of receive requests */
 43:   PetscInt      nsends,nrecvs;         /* numbers of sends and receives */
 44:   PetscScalar   *svalues,*rvalues;     /* sending and receiving data */
 45:   PetscInt      rmax;                   /* maximum message length */
 46: #if defined (PETSC_USE_CTABLE)
 47:   PetscTable    colmap;
 48: #else
 49:   PetscInt      *colmap;                /* local col number of off-diag col */
 50: #endif
 51:   PetscInt      *garray;                /* global index of all off-processor columns */

 53:   /* The following variables are used for matrix-vector products */
 54:   Vec           lvec;              /* local vector */
 55:   Vec           diag;
 56:   VecScatter    Mvctx;             /* scatter context for vector */
 57:   PetscBool     roworiented;       /* if true, row-oriented input, default true */

 59:   /* The following variables are for MatGetRow() */
 60:   PetscInt      *rowindices;       /* column indices for row */
 61:   PetscScalar   *rowvalues;        /* nonzero values in row */
 62:   PetscBool     getrowactive;      /* indicates MatGetRow(), not restored */

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

 67:   /* Used by MatMatMult() and MatPtAP() */
 68:   Mat_PtAPMPI   *ptap;
 69: } Mat_MPIAIJ;

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

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

 87: extern PetscErrorCode MatLoad_MPIAIJ(Mat,PetscViewer);
 88: extern PetscErrorCode MatMatMult_MPIDense_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*);
 89: extern PetscErrorCode MatMatMult_MPIAIJ_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*);
 90: extern PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
 91: extern PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIAIJ_Scalable(Mat,Mat,PetscReal,Mat*);
 92: extern PetscErrorCode MatMatMultNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);

 94: extern PetscErrorCode MatPtAPSymbolic_MPIAIJ(Mat,Mat,PetscReal,Mat*);
 95: extern PetscErrorCode MatPtAPNumeric_MPIAIJ(Mat,Mat,Mat);
 96: extern PetscErrorCode MatPtAPSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
 97: extern PetscErrorCode MatPtAPNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);
 98: extern PetscErrorCode MatDestroy_MPIAIJ_PtAP(Mat);

100: extern PetscErrorCode MatGetBrowsOfAoCols_MPIAIJ(Mat,Mat,MatReuse,PetscInt**,PetscInt**,MatScalar**,Mat*);
101: extern PetscErrorCode MatSetValues_MPIAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar [],InsertMode);
102: extern PetscErrorCode MatDestroy_MPIAIJ_MatMatMult(Mat);
103: extern PetscErrorCode PetscContainerDestroy_Mat_MatMatMultMPI(void*);

105: extern PetscErrorCode MatTransposeMatMult_MPIAIJ_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*);
106: extern PetscErrorCode MatTransposeMatMultSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*);
107: extern PetscErrorCode MatTransposeMatMultSymbolic_MPIAIJ_MPIAIJ_Scalable(Mat,Mat,PetscReal,Mat*);
108: extern PetscErrorCode MatTransposeMatMultNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat);

110: extern PetscErrorCode MatGetRedundantMatrix_MPIAIJ(Mat,PetscInt,MPI_Comm,PetscInt,MatReuse,Mat*);
111: extern PetscErrorCode MatGetSeqNonzeroStructure_MPIAIJ(Mat,Mat*);

113: EXTERN_C_BEGIN
114: extern PetscErrorCode MatMPIAIJSetPreallocation_MPIAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[]);
115: EXTERN_C_END

117: #if !defined(PETSC_USE_COMPLEX) && !defined(PETSC_USE_REAL_SINGLE) && !defined(PETSC_USE_REAL___FLOAT128)
118: extern PetscErrorCode MatLUFactorSymbolic_MPIAIJ_TFS(Mat,IS,IS,const MatFactorInfo*,Mat*);
119: #endif
120: extern PetscErrorCode MatSolve_MPIAIJ(Mat,Vec,Vec);
121: extern PetscErrorCode MatILUFactor_MPIAIJ(Mat,IS,IS,const MatFactorInfo *);

123: EXTERN_C_BEGIN
124: extern PetscErrorCode  MatGetDiagonalBlock_MPIAIJ(Mat,Mat *);
125: extern PetscErrorCode  MatDiagonalScaleLocal_MPIAIJ(Mat,Vec);
126: EXTERN_C_END

128: #endif