Coarse grid size 5 by 5
Fine grid size 9 by 9
  0 KSP Residual norm 52.0664 
  1 KSP Residual norm 6.26378 
  2 KSP Residual norm 0.748411 
  3 KSP Residual norm 0.295896 
  4 KSP Residual norm 0.0576961 
  5 KSP Residual norm 0.0215356 
  6 KSP Residual norm 0.00849416 
  7 KSP Residual norm 0.0018791 
  8 KSP Residual norm 0.000609639 
  9 KSP Residual norm 0.000291656 
Number of iterations = 9
