OutputDir = output # Directory for output
FileBase = IC              # Base-filename of output files

Nmesh = 64 # This is the size of the FFT grid used to 
                            # compute the displacement field. One
                            # should have Nmesh >= Nsample.

Ngrid = 64 # number of particles per grid direction.
Nsample = 64 # k space sampling upper limit
 

BoxSize = 4000   # Periodic box size of simulation



Omega0 = 0.2814      # Total matter density  (at z=0)
OmegaLambda = 0.7186      # Cosmological constant (at z=0)
OmegaBaryon = 0.0464     # Baryon density        (at z=0)
ProduceGas = 1         # 1 = Produce gas  0 = no gas, just DM.
OmegaDM_2ndSpecies 0 = # Omega for a second dark matter species (at z=0)
HubbleParam = 0.697      # Hubble paramater (may be used for power spec parameterization)

Redshift = 9        # Starting redshift

Sigma8 = 0.810      # power spectrum normalization



SphereMode = 1         # if "1" only modes with |k| < k_Nyquist are
                           # used (i.e. a sphere in k-space), otherwise modes with
                           # |k_x|,|k_y|,|k_z| < k_Nyquist are used
                           # (i.e. a cube in k-space)

WhichSpectrum = 2         # "1" selects Eisenstein & Hu spectrum,
		                   # "2" selects a tabulated power spectrum in
                           # the file 'FileWithInputSpectrum'
                           # otherwise, Efstathiou parametrization is used


FileWithInputSpectrum = ../powerspectrum-wmap9.txt  # filename of tabulated input
                                                                   # spectrum (if used)
InputSpectrum_UnitLength_in_cm = 3.085678e24 # defines length unit of tabulated
                                                                   # input spectrum in cm/h. 
                                    # Note: This can be chosen different from UnitLength_in_cm
    

ShapeGamma = 0.201     # only needed for Efstathiou power spectrum 
PrimordialIndex  = 0.971 # may be used to tilt the primordial index

		  
Seed = 181170    #  seed for IC-generator


UnitLength_in_cm = 3.085678e21   # defines length unit of output (in cm/h) 
UnitMass_in_g = 1.989e43      # defines mass unit of output (in g/cm)
UnitVelocity_in_cm_per_s = 1e5 # defines velocity unit of output (in cm/sec)



WDM_On = 0      # Putting a '1' here will enable a WDM small-scale
                            # smoothing of the power spectrum

WDM_Vtherm_On = 0      # If set to '1', the (warm) dark matter particles will
                            # receive an additional random thermal velocity
                            # corresponding to their particle mass

WDM_PartMass_in_kev  10.0 = # This is the particle mass in keV of the WDM particle