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Number of active cells: 384 (on 4 levels)
Number of degrees of freedom: 13,321 (3,234+1,577+3,234+425+1,617+1,617+1,617)

*** Timestep 0:  t=0 years
   Solving temperature system... 0 iterations.
   Skipping porosity composition solve because RHS is zero.
   Skipping peridotite composition solve because RHS is zero.
   Rebuilding Stokes preconditioner...
   Solving Stokes system... 44+0 iterations.
   Solving for u_f in 10 iterations.
      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 1.59922e-16, 0, 0, 1
      Relative nonlinear residual (total system) after nonlinear iteration 1: 1

   Solving temperature system... 0 iterations.
   Skipping porosity composition solve because RHS is zero.
   Skipping peridotite composition solve because RHS is zero.
   Rebuilding Stokes preconditioner...
   Solving Stokes system... 0+0 iterations.
   Solving for u_f in 10 iterations.
      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 1.59922e-16, 0, 0, 8.7539e-08
      Relative nonlinear residual (total system) after nonlinear iteration 2: 8.7539e-08


   Postprocessing:
     Writing graphical output:  output-mid_ocean_ridge/solution/solution-00000
     Compositions min/max/mass: 0/0/0 // 0/0/0
     RMS, max velocity:         0.0169 m/year, 0.0298 m/year

*** Timestep 1:  t=10000 years
   Solving composition reactions in 50 substep(s).
   Solving temperature system... 6 iterations.
   Skipping porosity composition solve because RHS is zero.
   Skipping peridotite composition solve because RHS is zero.
   Rebuilding Stokes preconditioner...
   Solving Stokes system... 29+0 iterations.
   Solving for u_f in 10 iterations.
      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 0.0202921, 0, 0, 0.000315352
      Relative nonlinear residual (total system) after nonlinear iteration 1: 0.0202921

   Solving temperature system... 4 iterations.
   Skipping porosity composition solve because RHS is zero.
   Skipping peridotite composition solve because RHS is zero.
   Rebuilding Stokes preconditioner...
   Solving Stokes system... 13+0 iterations.
   Solving for u_f in 10 iterations.
      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 4.50784e-05, 0, 0, 7.2474e-07
      Relative nonlinear residual (total system) after nonlinear iteration 2: 4.50784e-05

   Solving temperature system... 3 iterations.
   Skipping porosity composition solve because RHS is zero.
   Skipping peridotite composition solve because RHS is zero.
   Rebuilding Stokes preconditioner...
   Solving Stokes system... 0+0 iterations.
   Solving for u_f in 10 iterations.
      Relative nonlinear residuals (temperature, compositional fields, Stokes system): 1.20845e-07, 0, 0, 6.56093e-08
      Relative nonlinear residual (total system) after nonlinear iteration 3: 1.20845e-07


   Postprocessing:
     Writing graphical output:  output-mid_ocean_ridge/solution/solution-00001
     Compositions min/max/mass: 0/0/0 // 0/0/0
     RMS, max velocity:         0.0169 m/year, 0.0298 m/year

Termination requested by criterion: end time


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