      Residual norms for stokes_ solve.
      0 KSP Residual norm 8.027318457323e-01
      1 KSP Residual norm 3.217055161566e-01
      2 KSP Residual norm 1.567207800303e-02
      3 KSP Residual norm 2.523442875205e-03
      4 KSP Residual norm 5.769713622537e-04
      5 KSP Residual norm 1.367390746917e-04
      6 KSP Residual norm 3.607833346417e-05
      7 KSP Residual norm 1.029740760743e-05
      8 KSP Residual norm 2.036631234554e-06