Actual source code: ex137.c
petsc-3.7.3 2016-08-01
2: static char help[] = "Tests MatCreateMPISBAIJWithArrays().\n\n";
4: #include <petscmat.h>
8: int main(int argc,char **args)
9: {
10: Mat A;
12: PetscInt m = 4, bs = 1,ii[5],jj[7];
13: PetscMPIInt size,rank;
14: PetscScalar aa[7];
16: PetscInitialize(&argc,&args,(char*)0,help);
17: MPI_Comm_size(PETSC_COMM_WORLD,&size);
18: MPI_Comm_rank(PETSC_COMM_WORLD,&rank);
19: if (size != 2) SETERRQ(PETSC_COMM_WORLD,PETSC_ERR_SUP,"Only for two processes");
21: if (!rank) {
22: ii[0] = 0; ii[1] = 2; ii[2] = 5; ii[3] = 7; ii[4] = 7;
23: jj[0] = 0; jj[1] = 1; jj[2] = 1; jj[3] = 2; jj[4] = 6; jj[5] = 3; jj[6] = 7;
24: aa[0] = 0; aa[1] = 1; aa[2] = 2; aa[3] = 3; aa[4] = 4; aa[5] = 5; aa[6] = 6;
25: /* 0 1
26: 1 2 6
27: 3 7 */
28: } else {
29: ii[0] = 0; ii[1] = 2; ii[2] = 4; ii[3] = 6; ii[4] = 7;
30: jj[0] = 4; jj[1] = 5; jj[2] = 5; jj[3] = 7; jj[4] = 6; jj[5] = 7; jj[6] = 7;
31: aa[0] = 8; aa[1] = 9; aa[2] = 10; aa[3] = 11; aa[4] = 12; aa[5] = 13; aa[6] = 14;
32: /* 4 5
33: 5 7
34: 6 7
35: 7 */
36: }
37: MatCreateMPISBAIJWithArrays(PETSC_COMM_WORLD,bs,m,m,PETSC_DECIDE,PETSC_DECIDE,ii,jj,aa,&A);
38: MatView(A,PETSC_VIEWER_STDOUT_WORLD);
39: MatDestroy(&A);
40: PetscFinalize();
41: return 0;
42: }