Fine grid size 9 by 9
  0 KSP Residual norm 10.0656 
  1 KSP Residual norm 4.35349 
  2 KSP Residual norm 0.638099 
  3 KSP Residual norm 0.0815887 
  4 KSP Residual norm 0.00953547 
  5 KSP Residual norm 0.00117851 
  6 KSP Residual norm 0.000265924 
  7 KSP Residual norm 2.74224e-05 
Number of iterations = 7
