level = 1, global size = 64, lid velocity = 0, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 222.222 
  1 SNES Function norm 86.5651 
  2 SNES Function norm 4.46741 
  3 SNES Function norm 0.0181083 
  4 SNES Function norm 4.02914e-07 
Number of Newton iterations = 4
level = 2, global size = 196, lid velocity = 0, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 108.927 
  1 SNES Function norm 6.70246 
  2 SNES Function norm 0.0170781 
  3 SNES Function norm 3.00282e-07 
Number of Newton iterations = 3
level = 3, global size = 676, lid velocity = 0, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 62.235 
  1 SNES Function norm 0.467843 
  2 SNES Function norm 3.03528e-05 
  3 SNES Function norm 1.1873e-08 
Number of Newton iterations = 3
level = 4, global size = 2500, lid velocity = 0, prandtl # = 1, grashof # = 1000
  0 SNES Function norm 35.7215 
  1 SNES Function norm 0.06564 
  2 SNES Function norm 5.33821e-07 
  3 SNES Function norm 6.28535e-09 
Number of Newton iterations = 3
