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
  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