1 2 #if !defined(__MPIAIJ_H) 3 #define __MPIAIJ_H 4 5 #include "src/mat/impls/aij/seq/aij.h" 6 #include "src/sys/ctable.h" 7 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 */ 16 17 /* The following variables are used for matrix assembly */ 18 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 */ 31 32 /* The following variables are used for matrix-vector products */ 33 34 Vec lvec; /* local vector */ 35 VecScatter Mvctx; /* scatter context for vector */ 36 PetscTruth roworiented; /* if true, row-oriented input, default true */ 37 38 /* The following variables are for MatGetRow() */ 39 40 PetscMPIInt *rowindices; /* column indices for row */ 41 PetscScalar *rowvalues; /* nonzero values in row */ 42 PetscTruth getrowactive; /* indicates MatGetRow(), not restored */ 43 44 } Mat_MPIAIJ; 45 46 typedef struct { /* used by MatMatMult_MPIAIJ_MPIAIJ for reusing symbolic mat product */ 47 IS isrowa,isrowb,iscolb; 48 Mat *aseq,*bseq,C_seq; /* A_seq=aseq[0], B_seq=bseq[0] */ 49 Mat A_loc,B_seq; 50 PetscInt brstart; /* starting owned rows of B in matrix bseq[0]; brend = brstart+B->m */ 51 } Mat_MatMatMultMPI; 52 53 typedef struct { /* used by MatMerge_SeqsToMPI for reusing the merged matrix */ 54 PetscMap rowmap; 55 int nrecv,nsend,*id_r,*bi,*bj,**ijbuf_r; 56 int *len_sra; /* array of length 2*size, len_sra[i]/len_sra[size+i] 57 store length of i-th send/recv matrix values */ 58 MatScalar *abuf_s; 59 Mat C_seq; /* too large to keep? */ 60 } Mat_Merge_SeqsToMPI; 61 62 EXTERN PetscErrorCode MatSetColoring_MPIAIJ(Mat,ISColoring); 63 EXTERN PetscErrorCode MatSetValuesAdic_MPIAIJ(Mat,void*); 64 EXTERN PetscErrorCode MatSetValuesAdifor_MPIAIJ(Mat,PetscInt,void*); 65 EXTERN PetscErrorCode MatSetUpMultiply_MPIAIJ(Mat); 66 EXTERN PetscErrorCode DisAssemble_MPIAIJ(Mat); 67 EXTERN PetscErrorCode MatDuplicate_MPIAIJ(Mat,MatDuplicateOption,Mat *); 68 EXTERN PetscErrorCode MatIncreaseOverlap_MPIAIJ(Mat,PetscInt,IS [],PetscInt); 69 EXTERN PetscErrorCode MatFDColoringCreate_MPIAIJ(Mat,ISColoring,MatFDColoring); 70 EXTERN PetscErrorCode MatGetSubMatrices_MPIAIJ (Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]); 71 EXTERN PetscErrorCode MatGetSubMatrix_MPIAIJ (Mat,IS,IS,PetscInt,MatReuse,Mat *); 72 EXTERN PetscErrorCode MatLoad_MPIAIJ(PetscViewer,const MatType,Mat*); 73 EXTERN PetscErrorCode MatMatMult_MPIAIJ_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*); 74 EXTERN PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*); 75 EXTERN PetscErrorCode MatMatMultNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat); 76 EXTERN PetscErrorCode MatPtAP_MPIAIJ_MPIAIJ(Mat,Mat,MatReuse,PetscReal,Mat*); 77 EXTERN PetscErrorCode MatPtAPSymbolic_MPIAIJ_MPIAIJ(Mat,Mat,PetscReal,Mat*); 78 EXTERN PetscErrorCode MatPtAPNumeric_MPIAIJ_MPIAIJ(Mat,Mat,Mat); 79 EXTERN PetscErrorCode MatSetValues_MPIAIJ(Mat,PetscInt,const PetscInt[],PetscInt,const PetscInt[],const PetscScalar [],InsertMode); 80 81 82 #if !defined(PETSC_USE_COMPLEX) && !defined(PETSC_USE_SINGLE) 83 EXTERN PetscErrorCode MatLUFactorSymbolic_MPIAIJ_TFS(Mat,IS,IS,MatFactorInfo*,Mat*); 84 #endif 85 86 EXTERN_C_BEGIN 87 EXTERN PetscErrorCode MatGetDiagonalBlock_MPIAIJ(Mat,PetscTruth *,MatReuse,Mat *); 88 EXTERN PetscErrorCode MatDiagonalScaleLocal_MPIAIJ(Mat,Vec); 89 EXTERN_C_END 90 91 #endif 92