DM Object: ex64_plex 2 MPI processes
  type: plex
ex64_plex in 3 dimensions:
  Number of 0-cells per rank: 34 0
  Number of 1-cells per rank: 146 0
  Number of 2-cells per rank: 202 0
  Number of 3-cells per rank: 89 0
Labels:
  celltype: 4 strata with value/size (0 (34), 1 (146), 3 (202), 6 (89))
  depth: 4 strata with value/size (0 (34), 1 (146), 2 (202), 3 (89))
  Cell Sets: 4 strata with value/size (1 (24), 2 (23), 5 (24), 20 (18))
DM Object: Parallel Mesh 2 MPI processes
  type: plex
Parallel Mesh in 3 dimensions:
  Number of 0-cells per rank: 22 21
  Number of 1-cells per rank: 81 81
  Number of 2-cells per rank: 103 107
  Number of 3-cells per rank: 43 46
Labels:
  depth: 4 strata with value/size (0 (22), 1 (81), 2 (103), 3 (43))
  celltype: 4 strata with value/size (0 (22), 1 (81), 3 (103), 6 (43))
  Cell Sets: 3 strata with value/size (2 (1), 5 (24), 20 (18))
Field U:
  adjacency FEM
Field Sigma:
  adjacency FEM
Field Alpha:
  adjacency FEM