DM Object: Sphere 1 MPI processes
  type: plex
Sphere in 2 dimensions:
  0-cells: 8
  1-cells: 12
  2-cells: 6
Labels:
  depth: 3 strata with value/size (0 (8), 1 (12), 2 (6))
  celltype: 3 strata with value/size (4 (6), 0 (8), 1 (12))
