Largest max row element 5.33333 at row 10
Smallest min row element 0. at row 0
Smallest max row element 4. at row 4
Largest row ratio 0. at row 0
Largest row ratio 0. at row 0
Largest l1 row element 10.6667 at row 34
  0 KSP Residual norm 15.0395
  1 KSP Residual norm < 1.e-11
KSP Object: 4 MPI processes
  type: cg
  maximum iterations=10000, initial guess is zero
  tolerances: relative=1e-05, absolute=1e-50, divergence=10000.
  left preconditioning
  using PRECONDITIONED norm type for convergence test
PC Object: 4 MPI processes
  type: tfs
  linear system matrix, which is also used to construct the preconditioner:
  Mat Object: 4 MPI processes
    type: mpiaij
    rows=50, cols=50
    total: nonzeros=708, allocated nonzeros=708
    total number of mallocs used during MatSetValues calls=0
      using I-node (on process 0) routines: found 7 nodes, limit used is 5
Number of iterations =   1
  Residual norm < 1.e-12
