level = 1, global size = 196, lid velocity = 10, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 140.677 
  1 SNES Function norm 26.9749 
  2 SNES Function norm 0.541895 
  3 SNES Function norm 0.000555022 
  4 SNES Function norm 7.28506e-09 
Number of Newton iterations = 4
level = 2, global size = 676, lid velocity = 10, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 71.9458 
  1 SNES Function norm 2.81583 
  2 SNES Function norm 0.000994615 
  3 SNES Function norm 7.76107e-09 
Number of Newton iterations = 3
level = 3, global size = 2500, lid velocity = 10, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 70.9322 
  1 SNES Function norm 3.24991 
  2 SNES Function norm 0.000237707 
  3 SNES Function norm 1.55154e-09 
Number of Newton iterations = 3
