[mesa-users] "dictionary" for the dt_limit strings

[Bill Paxton]

Hi,

I finally got around to making a list of the dt_limit strings with the corresponding control parameters.

This will show up in controls.defaults in the next release, but I thought it might be of interest now.

-B



   !# timestep controls
   
      ! The terminal output during evolution includes a short string for the 'dt_limit'.
      ! This is to give you some indication of what is limiting the time steps.
      ! Here's a dictionary mapping those terminal strings to the corresponding control parameters.
      
            !           terminal output       related parameter
            !          'CpT_absMdot_div_L'    CpT_absMdot_div_L_limit
            !          'Lnuc'                 delta_lgL_nuc_cat_limit
            !          'Lnuc'                 delta_lgL_nuc_limit
            !          'Lnuc_H'               delta_lgL_H_limit
            !          'Lnuc_He'              delta_lgL_He_limit
            !          'Lnuc_photo'           delta_lgL_photo_limit
            !          'Lnuc_z'               delta_lgL_z_limit
            !          'bad_X_sum'            (solver found bad mass sum)
            !          'burn iters'           burn_max_iters_limit
            !          'burn steps'           burn_max_substeps_limit
            !          'dH'                   dH_limit
            !          'dH/H'                 dH_div_H_limit
            !          'dHe'                  dHe_limit
            !          'dHe/He'               dHe_div_He_limit
            !          'dHe3'                 dHe3_limit
            !          'dHe3/He3'             dHe3_div_He3_limit
            !          'dL/L'                 dL_div_L_limit
            !          'dX'                   dX_limit 
            !          'dX/X'                 dX_div_X_limit
            !          'dX_nuc_drop'          dX_nuc_drop_limit
            !          'd_delR_grow'          d_deltaR_grow_limit
            !          'd_delR_shrink'        d_deltaR_shrink_limit
            !          'delta Ye'             delta_Ye_limit
            !          'delta mdot'           delta_mdot_limit
            !          'delta total J'        delta_lg_total_J_limit
            !          'delta_HR'             delta_HR_limit
            !          'delta_mstar'          delta_lg_star_mass_limit
            !          'diff iters'           diffusion_iters_limit
            !          'diff steps'           diffusion_steps_limit
            !          'dt_Courant'           dt_div_dt_Courant_limit
            !          'dt_acoustic'          dt_div_dt_acoustic_limit
            !          'dt_collapse'          dt_div_dt_cell_collapse_limit
            !          'dt_dynamic'           dt_div_dt_dynamic_limit
            !          'dt_mass_loss'         dt_div_dt_mass_loss_limit
            !          'dt_thermal'           dt_div_dt_thermal_limit
            !          'eps_nuc_cntr'         delta_log_eps_nuc_cntr_limit
            !          'highT del Ye'         delta_Ye_highT_limit
            !          'hold'                 (recent backup, so no increase in dt)
            !          'lgL'                  delta_lgL_limit
            !          'lgP'                  delta_lgP_limit
            !          'lgR'                  delta_lgR_limit
            !          'lgRho'                delta_lgRho_limit
            !          'lgRho_cntr'           delta_lgRho_cntr_limit
            !          'lgRho_max'            delta_lgRho_max_limit
            !          'lgT'                  delta_lgT_limit
            !          'lgT_cntr'             delta_lgT_cntr_limit
            !          'lgT_max'              delta_lgT_max_limit
            !          'lgTeff'               delta_lgTeff_limit
            !          'lg_XC_cntr'           delta_lg_XC_cntr_limit
            !          'lg_XH_cntr'           delta_lg_XH_cntr_limit
            !          'lg_XHe_cntr'          delta_lg_XHe_cntr_limit
            !          'lg_XNe_cntr'          delta_lg_XNe_cntr_limit
            !          'lg_XO_cntr'           delta_lg_XO_cntr_limit
            !          'lg_XSi_cntr'          delta_lg_XSi_cntr_limit
            !          'log_eps_nuc'          delta_log_eps_nuc_limit
            !          'max_dt'               max_years_for_timestep
            !          'max dt change'        max_timestep_factor
            !          'min dt change'        min_timestep_factor
            !          'mix fixup'            max_fixup_for_mix_limit
            !          'neg_mass_frac'        (solver found neg mass frac)
            !          'newton iters'         newton_iterations_limit
            !          'v/v_crit'             v_div_v_crit_limit
            !          'varcontrol'           varcontrol_target
      
      

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