# Define some meta-data about the simulation MetaData: run_name: CosmoBox00 # Define the system of units to use internally. InternalUnitSystem: UnitMass_in_cgs: 1.98841e43 # 10^10 M_sun in grams UnitLength_in_cgs: 3.08567758e24 # Mpc in centimeters UnitVelocity_in_cgs: 1e5 # km/s in centimeters per second UnitCurrent_in_cgs: 1 # Amperes UnitTemp_in_cgs: 1 # Kelvin # Cosmological parameters Cosmology: h: 0.67321 # Reduced qHubble constant a_begin: 0.01282051 # Initial scale-factor of the simulation (z=77) a_end: 1.0 # Final scale factor of the simulation Omega_cdm: 0.26641139 # Cold Dark Matter density parameter (value without neutrinos : 0.26499) Omega_lambda: 0.6842 # Dark-energy density parameter Omega_b: 0.049389 # Baryon density parameter # Parameters governing the time integration TimeIntegration: dt_min: 1e-10 # The minimal time-step size of the simulation (in internal units). dt_max: 1e-2 # The maximal time-step size of the simulation (in internal units). # Parameters governing the snapshots Snapshots: basename: snap/snapshot # Common part of the name of output files output_list_on: 1 output_list: ./output_list.txt compression: 4 # Parameters governing the conserved quantities statistics Statistics: delta_time: 1.01 scale_factor_first: 0.02 # Parameters for the self-gravity scheme Gravity: eta: 0.025 # Constant dimensionless multiplier for time integration. MAC: adaptive # Use the geometric opening angle condition theta_cr: 0.7 # Opening angle (Multipole acceptance criterion) epsilon_fmm: 0.001 # Adaptive opening angle mesh_side_length: 256 comoving_DM_softening: 0.0066 # Comoving softening for DM max_physical_DM_softening: 0.00174 # Physical softening for DM comoving_baryon_softening: 0.0066 # Comoving softening for DM max_physical_baryon_softening: 0.00174 # Physical softening for DM # Parameters for the hydrodynamics scheme SPH: resolution_eta: 1.2348 # Target smoothing length in units of the mean inter-particle separation (1.2348 == 48Ngbs with the cubic spline kernel). h_min_ratio: 0.01 # Minimal smoothing length in units of softening. h_max: 0.5 # Maximal smoothing length in co-moving internal units. CFL_condition: 0.2 # Courant-Friedrich-Levy condition for time integration. minimal_temperature: 10.0 # (internal units) # Cooling with Grackle 3.0 GrackleCooling: cloudy_table: CloudyData_UVB=HM2012.h5 # Name of the Cloudy Table (available on the grackle bitbucket repository) with_UV_background: 0 # Enable or not the UV background redshift: -1 # Redshift to use (-1 means time based redshift) with_metal_cooling: 0 # Enable or not the metal cooling max_steps: 10000 # (optional) Max number of step when computing the initial composition convergence_limit: 1e-2 # (optional) Convergence threshold (relative) for initial composition thermal_time_myr: 5 # (optional) Time (in Myr) for adiabatic cooling after a feedback event. self_shielding_method: 0 # (optional) Grackle (1->3 for Grackle's ones, 0 for none and -1 for GEAR) self_shielding_threshold_atom_per_cm3: 0.007 # Required only with GEAR's self shielding. Density threshold of the self shielding HydrogenFractionByMass : 0.76 # Hydrogen fraction by mass (default is 0.76) use_radiative_transfer : 0 # Arrays of ionization and heating rates are provided H2_three_body_rate : 1 # (optional) H2 formation three body rate (see grackle documentation) H2_cie_cooling : 0 # Enable/disable H2 collision-induced emission cooling from Ripamonti & Abel (2004) cmb_temperature_floor : 1 # Enable/disable an effective CMB temperature floor initial_nHII_to_nH_ratio: 2.393761E-004 # initial nHII to nH ratio (number density ratio). Value is ignored if set to -1. initial_nHeI_to_nH_ratio: 7.900000E-002 # initial nHeI to nH ratio (number density ratio). Value is ignored if set to -1. initial_nHeII_to_nH_ratio: 5.692753E-020 # initial nHeII to nH ratio (number density ratio). Value is ignored if set to -1. initial_nHeIII_to_nH_ratio: 0 # initial nHeIII to nH ratio (number density ratio). Value is ignored if set to -1. initial_nDI_to_nH_ratio: 2.529538E-005 # initial nDI to nH ratio (number density ratio). Value is ignored if set to -1. initial_nDII_to_nH_ratio: 4.284496E-009 # initial nDII to nH ratio (number density ratio). Value is ignored if set to -1. initial_nHM_to_nH_ratio: 6.509693E-012 # initial nHM to nH ratio (number density ratio). Value is ignored if set to -1. initial_nH2I_to_nH_ratio: 1.891128E-006 # initial nH2I to nH ratio (number density ratio). Value is ignored if set to -1. initial_nH2II_to_nH_ratio: 4.153181E-014 # initial nH2II to nH ratio (number density ratio). Value is ignored if set to -1. initial_nHDI_to_nH_ratio: 3.356904E-010 # initial nHDI to nH ratio (number density ratio). Value is ignored if set to -1. maximal_density_Hpcm3: -1 # Maximal density (in hydrogen atoms/cm^3) for cooling. Higher densities are floored to this value to ensure grackle works properly when interpolating beyond the cloudy_table maximal density. A value < 0 deactivates this parameter. Scheduler: max_top_level_cells: 12 #cell_split_size: 200 Restarts: onexit: 1 delta_hours: 6.0 max_run_time: 71.5 # Three days minus fergie time #resubmit_on_exit: 1 #resubmit_command: ./resub.sh # Parameters related to the initial conditions InitialConditions: file_name: homogeneousCube_32.hdf5 periodic: 1 cleanup_h_factors: 0 # Remove the h-factors inherited from Gadget cleanup_velocity_factors: 0 # Remove the sqrt(a) factor in the velocities inherited from Gadget