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;

 12:   PetscInitialize(&argc,&argv,(char*)0,help);
 13:   MPI_Comm_size(PETSC_COMM_WORLD,&size);
 15:   MPI_Comm_rank(PETSC_COMM_WORLD,&rank);
 16:   if (rank == 0) {
 17:     nlocal = 4; local[0] = 0; local[1] = 3; local[2] = 2; local[3] = 1;
 18:   } else if (rank == 1) {
 19:     nlocal = 4; local[0] = 3; local[1] = 5; local[2] = 4; local[3] = 2;
 20:   } else {
 21:     nlocal = 4; local[0] = 7; local[1] = 6; local[2] = 5; local[3] = 3;
 22:   }
 23:   ISLocalToGlobalMappingCreate(PETSC_COMM_WORLD,1,nlocal,local,PETSC_COPY_VALUES,&mapping);
 24:   ISLocalToGlobalMappingGetInfo(mapping,&nneigh,&neigh,&numneigh,&ineigh);
 25:   ISLocalToGlobalMappingRestoreInfo(mapping,&nneigh,&neigh,&numneigh,&ineigh);
 26:   ISLocalToGlobalMappingDestroy(&mapping);
 27:   PetscFinalize();
 28:   return 0;
 29: }

 31: /*TEST

 33:    test:
 34:       nsize: 3
 35:       output_file: output/ex1_1.out

 37: TEST*/