10: 0 9 20: 0 -1 -1 1 -1 -1 -1 -1 -1 2 -1 -1 3 30: 0 1 2 3 4ISLocalToGlobalMapping Object: 1 MPI process 5 type: basic 6[0] 0 0 7[0] 1 3 8[0] 2 9 9[0] 3 12 10