DM Object: Sphere 2 MPI processes
  type: plex
Sphere in 2 dimensions:
  0-cells: 8 8
  1-cells: 10 10
  2-cells: 3 3
Labels:
  depth: 3 strata with value/size (0 (8), 1 (10), 2 (3))
  celltype: 3 strata with value/size (0 (8), 1 (10), 4 (3))
