1PetscSF Object: 4 MPI processes 2 current info=MPI_INFO_NULL 3 [0] Number of roots=3, leaves=2, remote ranks=2 4 [0] 0 <- (3,1) 5 [0] 1 <- (1,0) 6 [1] Number of roots=2, leaves=3, remote ranks=2 7 [1] 0 <- (0,1) 8 [1] 1 <- (2,0) 9 [1] 2 <- (0,2) 10 [2] Number of roots=2, leaves=3, remote ranks=3 11 [2] 0 <- (1,1) 12 [2] 1 <- (3,0) 13 [2] 2 <- (0,2) 14 [3] Number of roots=2, leaves=3, remote ranks=2 15 [3] 0 <- (2,1) 16 [3] 1 <- (0,0) 17 [3] 2 <- (0,2) 18 [0] Roots referenced by my leaves, by rank 19 [0] 1: 1 edges 20 [0] 1 <- 0 21 [0] 3: 1 edges 22 [0] 0 <- 1 23 [1] Roots referenced by my leaves, by rank 24 [1] 0: 2 edges 25 [1] 0 <- 1 26 [1] 2 <- 2 27 [1] 2: 1 edges 28 [1] 1 <- 0 29 [2] Roots referenced by my leaves, by rank 30 [2] 0: 1 edges 31 [2] 2 <- 2 32 [2] 1: 1 edges 33 [2] 0 <- 1 34 [2] 3: 1 edges 35 [2] 1 <- 0 36 [3] Roots referenced by my leaves, by rank 37 [3] 0: 2 edges 38 [3] 1 <- 0 39 [3] 2 <- 2 40 [3] 2: 1 edges 41 [3] 0 <- 1 42## Pre-Reduce Rootdata 43[0] 0: 100 101 102 44[1] 0: 200 201 45[2] 0: 300 301 46[3] 0: 400 401 47## Reduce Leafdata 48[0] 0: 1000 1010 49[1] 0: 2000 2010 2020 50[2] 0: 3000 3010 3020 51[3] 0: 4000 4010 4020 52## Reduce Rootdata 53[0] 0: 4110 2101 9162 54[1] 0: 1210 3201 55[2] 0: 2310 4301 56[3] 0: 3410 1401 57