Mat Object: 2 MPI processes
  type: mpidense
9.0000000000000000e+00 4.5000000000000000e+00 
4.5000000000000000e+00 3.0000000000000000e+00 
3.0000000000000000e+00 2.2500000000000000e+00 
[0] shape (2,2)
[1] shape (1,2)