Mat Object: 6 MPI processes
  type: mpiaij
row 0:
row 1:
row 2:
row 3: (3, 0.) 
row 4:
row 5:
row 6:
row 7: (4, 0.) 
row 8:
row 9: (7, 0.) 
Mat Object: 6 MPI processes
  type: mpiaij
row 0:
row 1:
row 2:
row 3: (3, 0.3) 
row 4:
row 5:
row 6:
row 7: (4, 3.3) 
row 8:
row 9: (7, 4.3)