1 0 KSP Residual norm 2.152827139129e+01 2 1 KSP Residual norm 3.672855969144e-01 3 2 KSP Residual norm 1.575285029053e-02 4 3 KSP Residual norm 3.693894201785e-04 5 4 KSP Residual norm 8.776528268726e-06 6