1 /* $Id: mpibaij.h,v 1.16 1999/01/08 16:43:56 balay Exp balay $ */ 2 3 #include "src/mat/impls/baij/seq/baij.h" 4 #include "src/sys/ctable.h" 5 6 #if !defined(__MPIBAIJ_H) 7 #define __MPIBAIJ_H 8 9 typedef struct { 10 int *rowners, *cowners; /* ranges owned by each processor */ 11 int m, n; /* local rows and columns */ 12 int M, N; /* global rows and columns */ 13 int rstart, rend; /* starting and ending owned rows */ 14 int cstart, cend; /* starting and ending owned columns */ 15 Mat A, B; /* local submatrices: A (diag part), 16 B (off-diag part) */ 17 int size; /* size of communicator */ 18 int rank; /* rank of proc in communicator */ 19 int bs, bs2; /* block size, bs2 = bs*bs */ 20 int Mbs, Nbs; /* number block rows/cols in matrix; M/bs, N/bs */ 21 int mbs, nbs; /* number block rows/cols on processor; m/bs, n/bs */ 22 23 /* The following variables are used for matrix assembly */ 24 25 Stash stash,bstash; /* stash for non-local elements */ 26 int donotstash; /* if 1, off processor entries dropped */ 27 MPI_Request *send_waits; /* array of send requests */ 28 MPI_Request *recv_waits; /* array of receive requests */ 29 int nsends, nrecvs; /* numbers of sends and receives */ 30 Scalar *svalues, *rvalues; /* sending and receiving data */ 31 int rmax; /* maximum message length */ 32 #if defined (USE_CTABLE) 33 Table colmap; 34 #else 35 int *colmap; /* local col number of off-diag col */ 36 #endif 37 int *garray; /* work array */ 38 39 /* The following variable is used by blocked matrix assembly */ 40 Scalar *barray; /* Block array of size bs2 */ 41 42 /* The following variables are used for matrix-vector products */ 43 44 Vec lvec; /* local vector */ 45 VecScatter Mvctx; /* scatter context for vector */ 46 int roworiented; /* if true, row-oriented input, default true */ 47 48 /* The following variables are for MatGetRow() */ 49 50 int *rowindices; /* column indices for row */ 51 Scalar *rowvalues; /* nonzero values in row */ 52 PetscTruth getrowactive; /* indicates MatGetRow(), not restored */ 53 54 /* Some variables to make MatSetValues and others more efficient */ 55 int rstart_bs, rend_bs; 56 int cstart_bs, cend_bs; 57 int *ht; /* Hash table to speed up matrix assembly */ 58 Scalar **hd; /* Hash table data */ 59 int ht_size; 60 int ht_total_ct,ht_insert_ct; /* Hash table statistics */ 61 int ht_flag; /* Flag to indicate if hash tables are used */ 62 double ht_fact; /* Factor to determine the HT size */ 63 } Mat_MPIBAIJ; 64 65 66 #endif 67