Topology for rank 0:
Vertex 18: 0 0
  Vertex 19: 1 0
  Edge 0 (18 19)
  Vertex 21: 0 1
  Edge 1 (18 21)
Vertex 19: 1 0
  Vertex 20: 2 0
  Edge 2 (19 20)
  Vertex 22: 1 1
  Edge 3 (19 22)
Vertex 20: 2 0
  Vertex 18: 0 0
  Edge 4 (20 18)
  Vertex 23: 2 1
  Edge 5 (20 23)
Vertex 21: 0 1
  Vertex 22: 1 1
  Edge 6 (21 22)
  Vertex 24: 0 2
  Edge 7 (21 24)
Vertex 22: 1 1
  Vertex 23: 2 1
  Edge 8 (22 23)
  Vertex 25: 1 2
  Edge 9 (22 25)
Vertex 23: 2 1
  Vertex 21: 0 1
  Edge 10 (23 21)
  Vertex 26: 2 2
  Edge 11 (23 26)
Vertex 24: 0 2
  Vertex 25: 1 2
  Edge 12 (24 25)
  Vertex 18: 0 0
  Edge 13 (24 18)
Vertex 25: 1 2
  Vertex 26: 2 2
  Edge 14 (25 26)
  Vertex 19: 1 0
  Edge 15 (25 19)
Vertex 26: 2 2
  Vertex 24: 0 2
  Edge 16 (26 24)
  Vertex 20: 2 0
  Edge 17 (26 20)
Geometry for rank 0:
Vertex 0: 0 0 0. 0.
Vertex 1: 1 0 0.333333 0.
Vertex 2: 2 0 0.666667 0.
Vertex 3: 0 1 0. 0.333333
Vertex 4: 1 1 0.333333 0.333333
Vertex 5: 2 1 0.666667 0.333333
Vertex 6: 0 2 0. 0.666667
Vertex 7: 1 2 0.333333 0.666667
Vertex 8: 2 2 0.666667 0.666667
PetscSF Object: 1 MPI process
  type: basic
  [0] Number of roots=27, leaves=0, remote ranks=0
  MultiSF sort=rank-order
DM Object: Generated Mesh 1 MPI process
  type: plex
Generated Mesh in 2 dimensions:
  Number of 0-cells per rank: 9
  Number of 2-cells per rank: 18
Labels:
  marker: 0 strata with value/size ()
  celltype: 2 strata with value/size (0 (9), 1 (18))
  depth: 2 strata with value/size (0 (9), 1 (18))