Actual source code: ex5.c
2: static char help[] = "Tests ISLocalToGlobalMappingGetInfo.()\n\n";
4: #include <petscis.h>
6: int main(int argc, char **argv)
7: {
8: PetscMPIInt size, rank;
9: PetscInt nlocal, local[5], nneigh, *neigh, **ineigh, *numneigh;
10: ISLocalToGlobalMapping mapping;
13: PetscInitialize(&argc, &argv, (char *)0, help);
14: MPI_Comm_size(PETSC_COMM_WORLD, &size);
16: MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
17: if (rank == 0) {
18: nlocal = 4;
19: local[0] = 0;
20: local[1] = 3;
21: local[2] = 2;
22: local[3] = 1;
23: } else if (rank == 1) {
24: nlocal = 4;
25: local[0] = 3;
26: local[1] = 5;
27: local[2] = 4;
28: local[3] = 2;
29: } else {
30: nlocal = 4;
31: local[0] = 7;
32: local[1] = 6;
33: local[2] = 5;
34: local[3] = 3;
35: }
36: ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD, 1, nlocal, local, PETSC_COPY_VALUES, &mapping);
37: ISLocalToGlobalMappingGetInfo(mapping, &nneigh, &neigh, &numneigh, &ineigh);
38: ISLocalToGlobalMappingRestoreInfo(mapping, &nneigh, &neigh, &numneigh, &ineigh);
39: ISLocalToGlobalMappingDestroy(&mapping);
40: PetscFinalize();
41: return 0;
42: }
44: /*TEST
46: test:
47: nsize: 3
48: output_file: output/ex1_1.out
50: TEST*/