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# info related to IC generation

IC generator = basic

template file = sc1_crystal.dat # file (Gadget-2 format) containing homogeneous particle template

tiling factor = 16 # number of times the template shall be repeated in each direction

# total number of particles will be N_template * (tiling factor)^3

Tk file = class_tk.dat # file containing tabulated transfer functions (densities and velocities)

# at initial redshift (ASCII file in CLASS format assumed)

baryon treatment = blend # possible choices are "ignore", "sample", "blend" (default) and "hybrid"

seed = 42 # initial seed for random number generator

correct displacement = yes # if "yes" the IC generator will try to fold the template pattern

# into the convolution kernel of the displacement field

k-domain = sphere # possible choices are "sphere" or "cube"

# primordial power spectrum

k_pivot = 0.05 # in units of inverse Mpc (not h/Mpc!)

A_s = 2.215e-9

n_s = 0.9619

# cosmological parameters

h = 0.67556

omega_b = 0.022032

omega_cdm = 0.12038

T_cmb = 2.7255 # in units of K

N_ur = 3.046

# simulation settings

initial redshift = 100.0

boxsize = 320.0 # in units of Mpc/h

Ngrid = 64

Courant factor = 48.0 # gravity solver time stepping

time step limit = 0.04 # in units of Hubble time

gravity theory = GR # possible choices are "GR" or "Newton"

vector method = parabolic # possible choices are "parabolic" or "elliptic"

# output

output path = output/

generic file base = lcdm

snapshot file base = lcdm_snap

snapshot redshifts = 30, 10, 3, 0

snapshot outputs = phi, B, Gadget2

Pk file base = lcdm_pk

Pk redshifts = 50, 30, 10, 3, 1, 0

Pk outputs = phi, B, chi, hij

Pk bins = 1024

lightcone file base = lcdm_lightcone

lightcone outputs = Gadget2, phi

lightcone 0 vertex = 0, 0, 0 # in units of Mpc/h

lightcone 0 direction = 1, 1, 1

lightcone 0 distance = 100 # in units of Mpc/h

lightcone 1 vertex = 0, 0, 0 # in units of Mpc/h

lightcone 1 direction = 1, 1, 1

lightcone 1 distance = 100, 450 # in units of Mpc/h

lightcone 1 opening half-angle = 30 # degrees

# additional parameters for CLASS in order to generate the initial transfer

# functions (Tk file) with this settings file

output = mPk, dTk, vTk

gauge = Newtonian

P_k_ini type = analytic_Pk

P_k_max_h/Mpc = 192 # has to be large enough (otherwise IC generator may crash)

z_pk = 100 # should be equal to initial reshift

root = class_

background_verbose = 1

spectra_verbose = 1

output_verbose = 1