1 /* $Id: mpisbaij.h,v 1.3 2001/08/07 03:03:05 balay Exp $ */ 2 3 #include "src/mat/impls/baij/seq/baij.h" 4 #include "src/sys/ctable.h" 5 #include "src/mat/impls/sbaij/seq/sbaij.h" 6 7 #if !defined(__MPISBAIJ_H) 8 #define __MPISBAIJ_H 9 10 typedef struct { 11 int *rowners,*cowners; /* ranges owned by each processor */ 12 int *rowners_bs; /* rowners*bs */ 13 int rstart,rend; /* starting and ending owned rows */ 14 int cstart,cend; /* starting and ending owned columns */ 15 Mat A,B; /* local submatrices: 16 A (diag part) in SeqSBAIJ format, 17 B (supper off-diag part) in SeqBAIJ format */ 18 int size; /* size of communicator */ 19 int rank; /* rank of proc in communicator */ 20 int bs,bs2; /* block size, bs2 = bs*bs */ 21 int Mbs,Nbs; /* number block rows/cols in matrix; M/bs */ 22 int mbs,nbs; /* number block rows/cols on processor; m/bs=n/bs */ 23 24 /* The following variables are used for matrix assembly */ 25 26 PetscTruth 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 MatScalar *svalues,*rvalues; /* sending and receiving data */ 31 int rmax; /* maximum message length */ 32 #if defined (PETSC_USE_CTABLE) 33 PetscTable 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 MatScalar *barray; /* Block array of size bs2 */ 41 42 /* The following variables are used for matrix-vector products */ 43 44 Vec lvec; /* local seq vector */ 45 VecScatter Mvctx; /* scatter context for vector */ 46 Vec slvec0,slvec1; /* parallel vectors */ 47 VecScatter sMvctx; 48 PetscTruth roworiented; /* if true, row-oriented input, default true */ 49 50 /* The following variables are for MatGetRow() */ 51 52 int *rowindices; /* column indices for row */ 53 PetscScalar *rowvalues; /* nonzero values in row */ 54 PetscTruth getrowactive; /* indicates MatGetRow(), not restored */ 55 56 /* Some variables to make MatSetValues and others more efficient */ 57 int rstart_bs,rend_bs; 58 int cstart_bs,cend_bs; 59 int *ht; /* Hash table to speed up matrix assembly */ 60 MatScalar **hd; /* Hash table data */ 61 int ht_size; 62 int ht_total_ct,ht_insert_ct; /* Hash table statistics */ 63 PetscTruth ht_flag; /* Flag to indicate if hash tables are used */ 64 double ht_fact; /* Factor to determine the HT size */ 65 66 #if defined(PETSC_USE_MAT_SINGLE) 67 int setvalueslen; 68 MatScalar *setvaluescopy; /* area double precision values in MatSetValuesXXX() are copied 69 before calling MatSetValuesXXX_MPISBAIJ_MatScalar() */ 70 #endif 71 } Mat_MPISBAIJ; 72 73 #endif 74