Mesh in 3 dimensions:
  0-cells: 8
  3-cells: 6
Labels:
  marker: 1 strata of sizes (8)
  depth: 2 strata of sizes (8, 6)
GPU layout grid(1,1,1) block(4,1,1) with 1 batches
 N_t: 4, N_cb: 1
Residual:
Vec Object: 1 MPI processes
  type: seq
-2
0.166667
-0.166667
0.333333
-2.66667
0.333333
0.5
3.5