test_solve 
x1 
Vec Object: 2 MPI processes
  type: mpi
  length=3
x2 
Vec Object: 2 MPI processes
  type: mpi
  length=2
test_solve_matgetvecs 
x1 
Vec Object: 2 MPI processes
  type: mpi
  length=3
x2 
Vec Object: 2 MPI processes
  type: mpi
  length=2
