1Original matrix 2Mat Object: 3 MPI processes 3 type: mpiaij 4row 0: (3, 1.) 5row 1: (2, 2.) 6row 2: (1, 3.) (5, 4.) 7row 3: (0, 5.) (6, 6.) 8row 4: (1, 7.) (4, 8.) 9Permuted matrix 10Mat Object: 3 MPI processes 11 type: mpiaij 12row 0: (3, 7.) (6, 8.) 13row 1: (0, 4.) (3, 3.) 14row 2: (4, 2.) 15row 3: (1, 1.) 16row 4: (2, 6.) (5, 5.) 17Row permutation 18IS Object: 3 MPI processes 19 type: general 20[0] Number of indices in set 2 21[0] 0 4 22[0] 1 2 23[1] Number of indices in set 2 24[1] 0 1 25[1] 1 0 26[2] Number of indices in set 1 27[2] 0 3 28Column permutation 29IS Object: 3 MPI processes 30 type: general 31[0] Number of indices in set 3 32[0] 0 5 33[0] 1 3 34[0] 2 6 35[1] Number of indices in set 2 36[1] 0 1 37[1] 1 2 38[2] Number of indices in set 2 39[2] 0 0 40[2] 1 4 41