1*e8823a70SSatish Balay /* $Id: mpiaij.h,v 1.12 1995/12/23 21:57:19 bsmith Exp bsmith $ */ 2*e8823a70SSatish Balay 3*e8823a70SSatish Balay #include "baij.h" 4*e8823a70SSatish Balay 5*e8823a70SSatish Balay typedef struct { 6*e8823a70SSatish Balay int *rowners, *cowners; /* ranges owned by each processor */ 7*e8823a70SSatish Balay int m, n; /* local rows and columns */ 8*e8823a70SSatish Balay int M, N; /* global rows and columns */ 9*e8823a70SSatish Balay int rstart, rend; /* starting and ending owned rows */ 10*e8823a70SSatish Balay int cstart, cend; /* starting and ending owned columns */ 11*e8823a70SSatish Balay Mat A, B; /* local submatrices: A (diag part), 12*e8823a70SSatish Balay B (off-diag part) */ 13*e8823a70SSatish Balay int size; /* size of communicator */ 14*e8823a70SSatish Balay int rank; /* rank of proc in communicator */ 15*e8823a70SSatish Balay 16*e8823a70SSatish Balay /* The following variables are used for matrix assembly */ 17*e8823a70SSatish Balay 18*e8823a70SSatish Balay InsertMode insertmode; /* mode for MatSetValues */ 19*e8823a70SSatish Balay Stash stash; /* stash for non-local elements */ 20*e8823a70SSatish Balay MPI_Request *send_waits; /* array of send requests */ 21*e8823a70SSatish Balay MPI_Request *recv_waits; /* array of receive requests */ 22*e8823a70SSatish Balay int nsends, nrecvs; /* numbers of sends and receives */ 23*e8823a70SSatish Balay Scalar *svalues, *rvalues; /* sending and receiving data */ 24*e8823a70SSatish Balay int rmax; /* maximum message length */ 25*e8823a70SSatish Balay int *colmap; /* local col number of off-diag col */ 26*e8823a70SSatish Balay int *garray; /* work array */ 27*e8823a70SSatish Balay 28*e8823a70SSatish Balay /* The following variables are used for matrix-vector products */ 29*e8823a70SSatish Balay 30*e8823a70SSatish Balay Vec lvec; /* local vector */ 31*e8823a70SSatish Balay VecScatter Mvctx; /* scatter context for vector */ 32*e8823a70SSatish Balay int roworiented; /* if true, row-oriented input, default true */ 33*e8823a70SSatish Balay 34*e8823a70SSatish Balay /* The following variables are for MatGetRow() */ 35*e8823a70SSatish Balay 36*e8823a70SSatish Balay int *rowindices; /* column indices for row */ 37*e8823a70SSatish Balay Scalar *rowvalues; /* nonzero values in row */ 38*e8823a70SSatish Balay PetscTruth getrowactive; /* indicates MatGetRow(), not restored */ 39*e8823a70SSatish Balay } Mat_MPIBAIJ; 40