
Loading shared library <./libnonlinear_channel_flow_velocities_Newton_Stokes_GMG.debug.so>

Number of active cells: 256 (on 5 levels)
Number of degrees of freedom: 3,556 (2,178+289+1,089)

*** Timestep 0:  t=0 seconds, dt=0 seconds
   Skipping temperature solve because RHS is zero.
   Initial Newton Stokes residual = 6.67966e+16, v = 4.5894e+16, p = 4.85338e+16

   Solving Stokes system (GMG)... 12+0 iterations.
      Newton system information: Norm of the rhs: 6.67966e+16
      Relative nonlinear residuals (temperature, Stokes system): 0, 1
      Relative nonlinear residual (total system) after nonlinear iteration 1: 1

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 2.90795e+11, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 4.35343e-06
      Relative nonlinear residual (total system) after nonlinear iteration 2: 4.35343e-06

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 2.11071e+11, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 3.1599e-06
      Relative nonlinear residual (total system) after nonlinear iteration 3: 3.1599e-06

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 1.5762e+11, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.35971e-06
      Relative nonlinear residual (total system) after nonlinear iteration 4: 2.35971e-06

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 1.10427e+11, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.65319e-06
      Relative nonlinear residual (total system) after nonlinear iteration 5: 1.65319e-06

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 7.51896e+10, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.12565e-06
      Relative nonlinear residual (total system) after nonlinear iteration 6: 1.12565e-06

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 4.97287e+10, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 7.44479e-07
      Relative nonlinear residual (total system) after nonlinear iteration 7: 7.44479e-07

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 3.20866e+10, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 4.80363e-07
      Relative nonlinear residual (total system) after nonlinear iteration 8: 4.80363e-07

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 2.03624e+10, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 3.04842e-07
      Relative nonlinear residual (total system) after nonlinear iteration 9: 3.04842e-07

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 1.28864e+10, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.9292e-07
      Relative nonlinear residual (total system) after nonlinear iteration 10: 1.9292e-07

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 8.22644e+09, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.23156e-07
      Relative nonlinear residual (total system) after nonlinear iteration 11: 1.23156e-07

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 5.28938e+09, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 7.91863e-08
      Relative nonlinear residual (total system) after nonlinear iteration 12: 7.91863e-08

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 3.41543e+09, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 5.11317e-08
      Relative nonlinear residual (total system) after nonlinear iteration 13: 5.11317e-08

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 2.21327e+09, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 3.31344e-08
      Relative nonlinear residual (total system) after nonlinear iteration 14: 3.31344e-08

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 1.43894e+09, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.15421e-08
      Relative nonlinear residual (total system) after nonlinear iteration 15: 2.15421e-08

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 9.38159e+08, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.4045e-08
      Relative nonlinear residual (total system) after nonlinear iteration 16: 1.4045e-08

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 6.13094e+08, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 9.17852e-09
      Relative nonlinear residual (total system) after nonlinear iteration 17: 9.17852e-09

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 4.01437e+08, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 6.00984e-09
      Relative nonlinear residual (total system) after nonlinear iteration 18: 6.00984e-09

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 2.63276e+08, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 3.94146e-09
      Relative nonlinear residual (total system) after nonlinear iteration 19: 3.94146e-09

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 18+0 iterations.
      Newton system information: Norm of the rhs: 1.72905e+08, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.58852e-09
      Relative nonlinear residual (total system) after nonlinear iteration 20: 2.58852e-09

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 1.1369e+08, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.70204e-09
      Relative nonlinear residual (total system) after nonlinear iteration 21: 1.70204e-09

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 7.48343e+07, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.12033e-09
      Relative nonlinear residual (total system) after nonlinear iteration 22: 1.12033e-09

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 4.93048e+07, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 7.38133e-10
      Relative nonlinear residual (total system) after nonlinear iteration 23: 7.38133e-10

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 3.25122e+07, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 4.86735e-10
      Relative nonlinear residual (total system) after nonlinear iteration 24: 4.86735e-10

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 2.14555e+07, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 3.21206e-10
      Relative nonlinear residual (total system) after nonlinear iteration 25: 3.21206e-10

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 1.41688e+07, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.12119e-10
      Relative nonlinear residual (total system) after nonlinear iteration 26: 2.12119e-10

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 9.36274e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.40168e-10
      Relative nonlinear residual (total system) after nonlinear iteration 27: 1.40168e-10

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 6.19045e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 9.26761e-11
      Relative nonlinear residual (total system) after nonlinear iteration 28: 9.26761e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 4.09514e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 6.13076e-11
      Relative nonlinear residual (total system) after nonlinear iteration 29: 6.13076e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 2.71032e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 4.05757e-11
      Relative nonlinear residual (total system) after nonlinear iteration 30: 4.05757e-11


WARNING: The nonlinear solver in the current timestep failed to converge.
Acting according to the parameter 'Nonlinear solver failure strategy'...
Continuing to the next timestep even though solution is not fully converged.
   Postprocessing:
     RMS, max velocity:                  2.57e-08 m/s, 3.05e-08 m/s
     Pressure min/avg/max:               -1.628e+08 Pa, 5.154e+08 Pa, 1.193e+09 Pa
     Mass fluxes through boundary parts: 0 kg/s, 0 kg/s, -0.8139 kg/s, 0.8139 kg/s

*** Timestep 1:  t=1 seconds, dt=1 seconds
   Skipping temperature solve because RHS is zero.
   Initial Newton Stokes residual = 4.58943e+16, v = 4.58941e+16, p = 1.36197e+14

   Solving Stokes system (GMG)... 0+0 iterations.
      Newton system information: Norm of the rhs: 2.71032e+06
      Relative nonlinear residuals (temperature, Stokes system): 0, 5.90557e-11
      Relative nonlinear residual (total system) after nonlinear iteration 1: 5.90557e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 1.79457e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 3.91022e-11
      Relative nonlinear residual (total system) after nonlinear iteration 2: 3.91022e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 1.18869e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.59007e-11
      Relative nonlinear residual (total system) after nonlinear iteration 3: 2.59007e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 787649, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.71622e-11
      Relative nonlinear residual (total system) after nonlinear iteration 4: 1.71622e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 522079, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.13757e-11
      Relative nonlinear residual (total system) after nonlinear iteration 5: 1.13757e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 346151, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 7.54234e-12
      Relative nonlinear residual (total system) after nonlinear iteration 6: 7.54234e-12


   Postprocessing:
     RMS, max velocity:                  2.57e-08 m/s, 3.05e-08 m/s
     Pressure min/avg/max:               -1.628e+08 Pa, 5.154e+08 Pa, 1.193e+09 Pa
     Mass fluxes through boundary parts: 0 kg/s, 0 kg/s, -0.8139 kg/s, 0.8139 kg/s

*** Timestep 2:  t=2 seconds, dt=1 seconds
   Skipping temperature solve because RHS is zero.
   Initial Newton Stokes residual = 4.58943e+16, v = 4.58941e+16, p = 1.36198e+14

   Solving Stokes system (GMG)... 0+0 iterations.
      Newton system information: Norm of the rhs: 2.01896e+06
      Relative nonlinear residuals (temperature, Stokes system): 0, 4.39915e-11
      Relative nonlinear residual (total system) after nonlinear iteration 1: 4.39915e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 1.33599e+06, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.91102e-11
      Relative nonlinear residual (total system) after nonlinear iteration 2: 2.91102e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 884449, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.92714e-11
      Relative nonlinear residual (total system) after nonlinear iteration 3: 1.92714e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 585759, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.27632e-11
      Relative nonlinear residual (total system) after nonlinear iteration 4: 1.27632e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 388083, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 8.45602e-12
      Relative nonlinear residual (total system) after nonlinear iteration 5: 8.45602e-12


   Postprocessing:
     RMS, max velocity:                  2.57e-08 m/s, 3.05e-08 m/s
     Pressure min/avg/max:               -1.628e+08 Pa, 5.154e+08 Pa, 1.193e+09 Pa
     Mass fluxes through boundary parts: 0 kg/s, 0 kg/s, -0.8139 kg/s, 0.8139 kg/s

*** Timestep 3:  t=3 seconds, dt=1 seconds
   Skipping temperature solve because RHS is zero.
   Initial Newton Stokes residual = 4.58943e+16, v = 4.58941e+16, p = 1.36198e+14

   Solving Stokes system (GMG)... 0+0 iterations.
      Newton system information: Norm of the rhs: 1.12228e+06
      Relative nonlinear residuals (temperature, Stokes system): 0, 2.44536e-11
      Relative nonlinear residual (total system) after nonlinear iteration 1: 2.44536e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 743954, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.62102e-11
      Relative nonlinear residual (total system) after nonlinear iteration 2: 1.62102e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 493302, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 1.07487e-11
      Relative nonlinear residual (total system) after nonlinear iteration 3: 1.07487e-11

   Skipping temperature solve because RHS is zero.
   Solving Stokes system (GMG)... 17+0 iterations.
      Newton system information: Norm of the rhs: 327183, Derivative scaling factor: 0
      Relative nonlinear residuals (temperature, Stokes system): 0, 7.12906e-12
      Relative nonlinear residual (total system) after nonlinear iteration 4: 7.12906e-12


   Postprocessing:
     RMS, max velocity:                  2.57e-08 m/s, 3.05e-08 m/s
     Pressure min/avg/max:               -1.628e+08 Pa, 5.154e+08 Pa, 1.193e+09 Pa
     Mass fluxes through boundary parts: 0 kg/s, 0 kg/s, -0.8139 kg/s, 0.8139 kg/s

*** Timestep 4:  t=4 seconds, dt=1 seconds
   Skipping temperature solve because RHS is zero.
   Initial Newton Stokes residual = 4.58943e+16, v = 4.58941e+16, p = 1.36198e+14

   Solving Stokes system (GMG)... 0+0 iterations.
      Newton system information: Norm of the rhs: 266649
      Relative nonlinear residuals (temperature, Stokes system): 0, 5.81006e-12
      Relative nonlinear residual (total system) after nonlinear iteration 1: 5.81006e-12


   Postprocessing:
     RMS, max velocity:                  2.57e-08 m/s, 3.05e-08 m/s
     Pressure min/avg/max:               -1.628e+08 Pa, 5.154e+08 Pa, 1.193e+09 Pa
     Mass fluxes through boundary parts: 0 kg/s, 0 kg/s, -0.8139 kg/s, 0.8139 kg/s

Termination requested by criterion: end time




WARNING: During this computation 1 nonlinear solver failures occurred!
