DM Object: box 1 MPI process
  type: plex
box in 2 dimensions:
  Number of 0-cells per rank: 4
  Number of 1-cells per rank: 4
  Number of 2-cells per rank: 1
Labels:
  marker: 1 strata with value/size (1 (8))
  Face Sets: 4 strata with value/size (1 (1), 2 (1), 3 (1), 4 (1))
  depth: 3 strata with value/size (0 (4), 1 (4), 2 (1))
  celltype: 3 strata with value/size (0 (4), 1 (4), 4 (1))
Time     Step Part     Energy
0.000000    0     0   500.0000
0.000000    0     1   250.0000
0.000000    0 KE	      750.0000
0.000000    0 PE	    0
0.000000    0 E	      750.0000
t 0.1: p0 error [0.13 4.25] sol [(-0.868830 0.010025) (-0.317007 -27.474829)] exact [(-0.999786 -0.020684) (0.654071 -31.616012)] energy/exact energy 377.483 / 500. (24.5033255994%)
t 0.1: p1 error [0.04 0.40] sol [(0.861875 1.765185) (-19.735366 9.636051)] exact [(0.874902 1.798484) (-20.107666 9.781706)] energy/exact energy 241.169 / 250. (3.5323712750%)
Time     Step Part     Energy
0.000000    0     0   500.0000
0.000000    0     1   250.0000
0.000000    0 KE	      750.0000
0.000000    0 PE	    0
0.000000    0 E	      750.0000
t 0.1: p0 error [0.07 2.20] sol [(-0.930753 -0.011631) (0.367807 -29.432980)] exact [(-0.999786 -0.020684) (0.654071 -31.616012)] energy/exact energy 433.218 / 500. (13.3564406062%)
t 0.1: p1 error [0.02 0.20] sol [(0.867700 1.782031) (-19.923713 9.701182)] exact [(0.874902 1.798484) (-20.107666 9.781706)] energy/exact energy 245.534 / 250. (1.7865429912%)
Time     Step Part     Energy
0.000000    0     0   500.0000
0.000000    0     1   250.0000
0.000000    0 KE	      750.0000
0.000000    0 PE	    0
0.000000    0 E	      750.0000
t 0.1: p0 error [0.04 1.12] sol [(-0.964450 -0.017969) (0.568227 -30.498597)] exact [(-0.999786 -0.020684) (0.654071 -31.616012)] energy/exact energy 465.244 / 500. (6.9512709167%)
t 0.1: p1 error [0.01 0.10] sol [(0.871129 1.790313) (-20.016306 9.739515)] exact [(0.874902 1.798484) (-20.107666 9.781706)] energy/exact energy 247.755 / 250. (0.8978639920%)
L_2 convergence rate: 0.96
Time     Step Part     Energy
0.000000    0     0   500.0000
0.000000    0     1   250.0000
0.000000    0 KE	      750.0000
0.000000    0 PE	    0
0.000000    0 E	      750.0000