1 2 IS to select slice from 3D DMDA vector : 3IS Object: 4 MPI processes 4 type: general 5[0] Number of indices in set 8 6[0] 0 8 7[0] 1 9 8[0] 2 10 9[0] 3 11 10[0] 4 12 11[0] 5 13 12[0] 6 14 13[0] 7 15 14[1] Number of indices in set 8 15[1] 0 24 16[1] 1 25 17[1] 2 26 18[1] 3 27 19[1] 4 28 20[1] 5 29 21[1] 6 30 22[1] 7 31 23[2] Number of indices in set 0 24[3] Number of indices in set 0 25 26 Extracted slice vector, in DMDA ordering : 27Vec Object: 4 MPI processes 28 type: mpi 29Process [0] 3096. 3198. 32100. 33102. 3494. 3597. 36100. 37103. 38Process [1] 3992. 4096. 41100. 42104. 4390. 4495. 45100. 46105. 47Process [2] 48Process [3] 49 50 Extracted slice vector, in natural ordering : 51Vec Object: 4 MPI processes 52 type: mpi 53Process [0] 5496. 5598. 56100. 57102. 5894. 5997. 60100. 61103. 62Process [1] 6392. 6496. 65100. 66104. 6790. 6895. 69100. 70105. 71Process [2] 72Process [3] 73