Failed to load initial guess, so use a vector of all zeros.
  0 KSP Residual norm 7.07107 
  1 KSP Residual norm 0.392837 
  2 KSP Residual norm < 1.e-11
Linear solve converged due to CONVERGED_RTOL iterations 2
KSP Object: 2 MPI processes
  type: cg
  maximum iterations=10, initial guess is zero
  tolerances:  relative=1e-05, absolute=1e-50, divergence=10000.
  left preconditioning
  using PRECONDITIONED norm type for convergence test
PC Object: 2 MPI processes
  type: none
  linear system matrix = precond matrix:
  Mat Object: A 2 MPI processes
    type: mpiaij
    rows=4, cols=4
    total: nonzeros=10, allocated nonzeros=10
    total number of mallocs used during MatSetValues calls=0
      using I-node (on process 0) routines: found 1 nodes, limit used is 5
KSP type: cg
Number of iterations =   2
Residual norm 0.
