InternalUnitSystem:
  UnitMass_in_cgs:     1.9884350000e+43 # 1e10 M_sol
  UnitLength_in_cgs:   3.0856775815e+24 # 1 Mpc
  UnitVelocity_in_cgs: 9.7846194238e+07 # 1 Gyr
  UnitCurrent_in_cgs:  1.0000000000e+00 # 1 A
  UnitTemp_in_cgs:     1.0000000000e+00 # 1 K

Cosmology:
  Omega_cdm:     0.2630695876
  Omega_b:       0.0491989267
  Omega_lambda:  0.6853646238
  h:             0.6737000000
  a_begin:       0.0250000000 # z = 39.000000
  a_end:         1.0000000000
  N_nu:          1
  N_ur:          1.0196
  T_nu_0:        1.9517578050
  M_nu_eV:       0.0486000000
  deg_nu:        2.0

TimeIntegration:
  dt_min:    1.0000e-10
  dt_max:    1.0000e-02

Scheduler:
  max_top_level_cells:    16
  cell_split_size:        100

Snapshots:
  scale_factor_first:  0.0250000000 # z = 39.000000
  delta_time:          1.2500
  basename:            box
  compression:         4

Statistics:
  scale_factor_first:  0.0250000000 # z = 39.000000
  delta_time:          1.2500

Restarts:
  delta_hours:    4.00

InitialConditions:
  file_name:    particles.hdf5
  periodic:     1

Neutrino:
  use_delta_f:  1  # Use the delta-f method for shot noise reduction
  generate_ics: 1  # Generate new Fermi-Dirac velocities for the particles

Gravity:
  mesh_side_length:    32
  MAC:            geometric
  eta:            0.02500
  theta_cr:        0.50000
  rebuild_frequency:    0.00 # rebuild always
  comoving_DM_softening:      0.0400000000  # Mpc
  max_physical_DM_softening:  0.0400000000  # Mpc
  comoving_nu_softening:      0.0400000000  # Mpc
  max_physical_nu_softening:  0.0400000000  # Mpc