MetaData: run_name: nIFTY cluster # 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: a_begin: 0.015151515 # z_ini = 65 a_end: 1.0 Omega_cdm: 0.2231 Omega_lambda: 0.73 Omega_b: 0.0469 h: 0.7 # Parameters governing the time integration TimeIntegration: time_begin: 0. # The starting time of the simulation (in internal units). time_end: 1e-2 # The end time of the simulation (in internal units). 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: nifty # Common part of the name of output files scale_factor_first: 0.05 # Scale-factor of the first snaphot (cosmological run) time_first: 0.01 # Time of the first output (non-cosmological run) (in internal units) delta_time: 1.01 # Time difference between consecutive outputs (in internal units) # Parameters governing the conserved quantities statistics Statistics: scale_factor_first: 0.05 # Scale-factor of the first stat dump (cosmological run) time_first: 0.01 # Time of the first stat dump (non-cosmological run) (in internal units) delta_time: 1.01 # Time between statistics output # Parameters for the self-gravity scheme Gravity: eta: 0.025 # Constant dimensionless multiplier for time integration. MAC: adaptive epsilon_fmm: 0.001 theta_cr: 0.7 use_tree_below_softening: 1 comoving_DM_softening: 0.02 # Comoving softening length (in internal units). comoving_baryon_softening: 0.02 # Comoving softening length (in internal units). max_physical_DM_softening: 0.005 # Max physical softening length (in internal units). max_physical_baryon_softening: 0.005 # Max physical softening length (in internal units). softening_ratio_background: 0.04 # 1/25th of mean inter-particle separation mesh_side_length: 512 # Parameters for the hydrodynamics scheme SPH: resolution_eta: 1.2 # ~50 ngb with Wendland-C2 h_min_ratio: 0.1 # Minimal smoothing in units of softening. CFL_condition: 0.1 # Courant-Friedrich-Levy condition for time integration. minimal_temperature: 100 # (internal units) Scheduler: max_top_level_cells: 32 # Parameters related to the initial conditions InitialConditions: file_name: ./nifty.hdf5 # The file to read periodic: 1 cleanup_h_factors: 1 # Remove the h-factors inherited from Gadget cleanup_velocity_factors: 1 # Remove the sqrt(a) factor in the velocities inherited from Gadget cleanup_smoothing_lenghts: 1