DM Object: Mesh 1 MPI processes
  type: plex
Mesh in 2 dimensions:
  0-cells: 81
  1-cells: 208
  2-cells: 128
Labels:
  celltype: 3 strata with value/size (1 (208), 3 (128), 0 (81))
  depth: 3 strata with value/size (0 (81), 1 (208), 2 (128))
  marker: 1 strata with value/size (1 (64))
  Face Sets: 1 strata with value/size (1 (56))
Initial guess
L_2 Error: < 1.0e-11
Initial Residual
L_2 Residual: 0.
Au - b = Au + F(0)
Linear L_2 Residual: 0.
Solution boundary integral: 3.333
