############################## CASTRO INPUTS ############################################### # Name of the probin file amr.probin_file = probin_test_wdmerger_retry ############################################################################################ # Geometry ############################################################################################ # Non-periodic boundary conditions geometry.is_periodic = 0 0 # Cartesian coordinate system geometry.coord_sys = 1 # Lower boundary limits in physical space geometry.prob_lo = 0.0e0 -5.12e9 # Upper boundary limits in physical space geometry.prob_hi = 5.12e9 5.12e9 # System center of mass castro.center = 0.0e0 0.0e0 ############################################################################################ # Boundary conditions # 0 = Interior 3 = Symmetry # 1 = Inflow 4 = SlipWall # 2 = Outflow 5 = NoSlipWall ############################################################################################ # Boundary conditions on lo x, y, and z edges castro.lo_bc = 3 2 # Boundary conditions on hi x, y, and z edges castro.hi_bc = 2 2 ############################################################################################ # Timestepping ############################################################################################ # Maximum coarse timestep max_step = 1 # Whether to use our custom stopping criteria castro.use_stopping_criterion = 1 # CFL number for hyperbolic system castro.cfl = 0.5 # Fixed level 0 timestep; unused if < 0 castro.fixed_dt = -1.0 # Scale back initial timestep by this factor castro.init_shrink = 1.0 # Factor by which dt is allowed to change each timestep castro.change_max = 1.05 # If we regrid on Level 0, compute a new timestep afterward amr.compute_new_dt_on_regrid = 1 # Use a retry if an advance violated our stability criteria castro.use_retry = 1 ############################################################################################ # Resolution, gridding and AMR ############################################################################################ # Number of cells on the coarse grid amr.n_cell = 128 256 # Maximum level number allowed amr.max_level = 2 # Refinement ratio amr.ref_ratio = 4 4 # How many coarse timesteps between regridding amr.regrid_int = 2 # Number of buffer cells in error estimation amr.n_error_buf = 2 2 # Maximum grid size at each level amr.max_grid_size = 32 32 48 64 64 # Grid sizes must be a multiple of blocking factor amr.blocking_factor = 32 8 8 16 32 # What constitutes an efficient grid amr.grid_eff = 0.9 # Order of reconstruction for interpolation castro.state_interp_order = 0 # Limiting on state data interpolation (preserve linear combinations) castro.lin_limit_state_interp = 1 ############################################################################################ # Physics to include ############################################################################################ # Whether or not to do hydrodynamics castro.do_hydro = 1 # Whether or not to do gravity castro.do_grav = 1 # Whether or not to do reactions castro.do_react = 0 # Whether or not to apply the sponge castro.do_sponge = 0 # Whether or not to apply external source terms castro.add_ext_src = 0 castro.ext_src_implicit = 1 # Whether or not to include the rotation source term castro.do_rotation = 0 ############################################################################################ # PPM/Hydro options ############################################################################################ # Piecewise parabolic with the original limiters (0 is piecewise linear; 2 is new limiters) castro.ppm_type = 1 # Use the EOS in calculation of the edge states going into the Riemann solver castro.ppm_temp_fix = 0 # Which Riemann solver to use. # 0 = Colella, Glaz, and Ferguson (cheaper, less accurate) # 1 = Colella and Glaz 1985 (more expensive, more accurate) # 2 = HLL castro.riemann_solver = 0 # For the CG Riemann solver, we need to tell the solver not to quit when # the iterations don't converge, but instead to do additional bisection iteration. castro.cg_blend = 2 # Use a lagged predictor estimate of the source terms in the hydro castro.source_term_predictor = 1 # Whether to use the hybrid advection technique that conserves angular momentum castro.hybrid_hydro = 0 # Reset (rho*e) if it goes negative in the transverse terms castro.transverse_reset_rhoe = 1 # Reset rho if it goes negative in the transverse terms castro.transverse_reset_density = 1 # Explicitly limit fluxes to avoid hitting a negative density castro.limit_fluxes_on_small_dens = 0 ############################################################################################ # Thermodynamics ############################################################################################ # Minimum allowable temperature (K) castro.small_temp = 1.0e5 # Minimum allowable density (g / cm**3) castro.small_dens = 1.e-5 # Threshold for when to use the internal energy in calculating pressure castro.dual_energy_eta1 = 1.0e-3 # Threshold for when to use (E - K) in updating internal energy castro.dual_energy_eta2 = 1.0e-4 # Use Coulomb corrections in Helmholtz EOS eos.use_eos_coulomb = 1 # Keep EOS inputs constant after EOS evaluation eos.eos_input_is_constant = 1 ############################################################################################ # Reactions/Network ############################################################################################ # Limit timestep based on nuclear burning considerations (changes in internal energy) castro.dtnuc_e = 1.e200 # Limit timestep based on nuclear burning considerations (changes in species) castro.dtnuc_X = 1.e200 # Which method to use for estimating de/dt and dX/dt castro.dtnuc_mode = 1 # Minimum temperature for allowing nuclear burning castro.react_T_min = 1.0e8 # Maximum temperature for allowing nuclear burning castro.react_T_max = 1.0e12 # Minimum density for allowing nuclear burning castro.react_rho_min = 1.0e6 # Maximum density for allowing nuclear burning castro.react_rho_max = 1.0e12 # Smallest allowable mass fraction network.small_x = 1.0e-12 # Burn at constant volume integrator.do_constant_volume_burn = 1 # Evaluate the RHS during the burn integrator.call_eos_in_rhs = 1 # Integration tolerances integrator.rtol_spec = 1.0e-10 integrator.atol_spec = 1.0e-10 integrator.rtol_temp = 1.0e-6 integrator.atol_temp = 1.0e-6 integrator.rtol_enuc = 1.0e-6 integrator.atol_enuc = 1.0e-6 # Do not abort or retry on a failed burn (Castro will handle this) integrator.retry_burn = 1 # Renormalize abundances during the burn integrator.renormalize_abundances = 1 ############################################################################################ # Gravity ############################################################################################ # Full self-gravity with the Poisson equation gravity.gravity_type = PoissonGrav # Multipole expansion includes terms up to r**(-max_multipole_order) gravity.max_multipole_order = 6 # Relative tolerance for multigrid solver for phi solves gravity.abs_tol = 1.e-10 # Turn off sync solve for gravity after refluxing gravity.no_sync = 0 ############################################################################################ # Rotation ############################################################################################ # Rotational period of the rotating reference frame castro.rotational_period = 100.0 # Whether to evolve state variables in the inertial or rotating frame castro.state_in_rotating_frame = 1 ############################################################################################ # Load balancing ############################################################################################ # Choice of load balancing strategy to use DistributionMapping.strategy = KNAPSACK # Efficiency demanded from the knapsack algorithm DistributionMapping.efficiency = 0.9 ############################################################################################ # Diagnostics and I/O ############################################################################################ # Calculate and print the center of mass at each time step castro.show_center_of_mass = 1 # Timesteps between computing and printing volume averaged diagnostic quantities castro.sum_interval = 1 # Simulation time between computing and printing volume averaged diagnostic quantities castro.sum_per = -1.0 # Whether or not to output plotfiles amr.plot_files_output = 1 # Whether or not to output checkpoints amr.checkpoint_files_output = 1 # Root name of checkpoint files amr.check_file = chk # We want to store the 'old' state data in checkpoints castro.dump_old = 1 # Simulation time between checkpoints amr.check_per = 1.0 # Number of timesteps between checkpoints amr.check_int = -1 # Root name of plot files amr.plot_file = plt # Simulation time between plotfiles amr.plot_per = 0.1 # Number of timesteps between plotfiles amr.plot_int = -1 # Root name of small plot files amr.small_plot_file = smallplt # Simulation time between small plotfiles amr.small_plot_per = 0.05 # Number of timesteps between small plotfiles amr.small_plot_int = -1 # Do not write plotfiles when we dump checkpoints amr.write_plotfile_with_checkpoint = 0 # How often to check whether the run script asked for a checkpoint dump amr.message_int = 1 # Control verbosity in Amr.cpp amr.v = 1 # Control verbosity in Castro.cpp castro.v = 1 # Control verbosity in Gravity.cpp gravity.v = 1 # Control verbosity in the multigrid solver mg.v = 0 # State variables to add to plot files amr.plot_vars = ALL # Derived variables to add to plot files amr.derive_plot_vars = pressure x_velocity y_velocity z_velocity soundspeed # State variables to add to small plot files amr.small_plot_vars = density Temp # Name of the diagnostic sum output files amr.data_log = grid_diag.out star_diag.out species_diag.out amr_diag.out primary_diag.out secondary_diag.out extrema_diag.out # Used a forced fixed dt that is known to be larger # than the safe hydrodynamic timestep given the above # CFL value. This guarantees that we will retry on # all levels, at least in the first timestep. castro.fixed_dt = 0.08