Local function: Vec Object: 1 MPI processes type: seq 0. 0.666667 0.666667 1.33333 0.666667 1.33333 1.33333 2. 0.5 0.333333 1.5 1. 0.166667 0.833333 0.333333 1.5 0.833333 0.166667 1. 0.166667 0.833333 1. 0.833333 0.333333 1.5 0.833333 0.833333 Initial guess Vec Object: potential 1 MPI processes type: seq 0.5 L_2 Error: < 1.0e-11 Residual: Vec Object: 1 MPI processes type: seq 0. 0. 0. 0. 0. 0. 0. 0. 0.133333 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. Initial Residual Vec Object: Residual, Iterate 0 1 MPI processes type: seq 0.133333 L_2 Residual: 0.133333 Residual: Vec Object: 1 MPI processes type: seq 0. 0. 0. 0. 0. 0. 0. 0. -1.46667 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. Au - b = Au + F(0) Vec Object: Residual, Iterate 0 1 MPI processes type: seq 0.133333 Linear L_2 Residual: 0.133333