1 -order 1                      # order of approximation
 
    2 -saturated_conductivity 0.02   
 
    8 -save_every_nth_step  4       # time-steps to save output at 
 
   11# petsc time solver (ts) arguments
 
   12 -ts_monitor                    # to print messages about the time step computations                  
 
   13 -ts_exact_final_time stepover  # rule when to stop at the final time
 
   14 -ts_dt 0.1              # time step size
 
   15 -ts_final_time 120         # final time
 
   16 -ts_adapt_type none            # no time-adaptivity, i.e., fixed step size
 
   18 # petsc linear solver arguments, fixed
 
   21 -pc_factor_mat_solver_type mumps 
 
   23 # petsc nonlinear solver arguments, no need to change them