DM Object:Mesh 1 MPI processes
  type: plex
Mesh in 3 dimensions:
  0-cells: 8
  3-cells: 6
Labels:
  marker: 1 strata of sizes (8)
  depth: 2 strata of sizes (8, 6)
Local function:
Vec Object: 1 MPI processes
  type: seq
0.
0.666667
0.666667
1.33333
0.666667
1.33333
1.33333
2.
Initial guess
Vec Object:potential 1 MPI processes
  type: seq
L_2 Error: 0.416667
Residual:
Vec Object: 1 MPI processes
  type: seq
0.
0.
0.
0.
0.
0.
0.
0.
Initial Residual
Vec Object: 1 MPI processes
  type: seq
L_2 Residual: 0.
Jacobian:
Mat Object: 1 MPI processes
  type: seqaij
Residual:
Vec Object: 1 MPI processes
  type: seq
0.
0.
0.
0.
0.
0.
0.
0.
Au - b = Au + F(0)
Vec Object: 1 MPI processes
  type: seq
Linear L_2 Residual: 0.