Fine grid size 9 by 9
  0 KSP Residual norm 5.48936 
  1 KSP Residual norm 2.44481 
  2 KSP Residual norm 0.367969 
  3 KSP Residual norm 0.0531217 
  4 KSP Residual norm 0.00796758 
  5 KSP Residual norm 0.00148054 
  6 KSP Residual norm 0.000243841 
  7 KSP Residual norm 2.34586e-05 
Number of iterations = 7
