ICgen configuration file

In this page I describe the format of the configuration file of ICgen. Some options are not completely well tested or even activated. In this case, I will mention that you should not use them at all. Most of the options are tunable without restrictions.

I have groupped the options by grand topics: cosmological parameters, specification of constraints, output parameters, additional utilities

Cosmological parameters

  • PowerType: type for the power spectrum to generate the density fluctuations Fourier modes. Several values are possible:
    • 1 : Use a BBKS power spectrum
    • 2 : Use a pure white power spectrum. ICgen cannot normalize this power spectrum.
    • 3 : Use a power spectrum built from a scale free primordial spectrum and a transfer function specified with the help of TransferFunctionFile. See the options ScalarAmplitude and ScalarPivot also. BAD DESCRIPTION
    • 4 : A pure scale free primordial spectrum specified by ScalarAmplitude and ScalarPivot.
    • 255 : A user defined, normalized, power spectrum
  • ScalarAmplitude:
  • ScalarPivot:
  • PowerIndice:
  • GridSize:
  • BoxSize:
  • Gadget:
  • Redshift:
  • UseGlass:
  • Sigma8:
  • fNL:
  • Hubble:
  • OmegaDarkEnergy:
  • Omega0
  • OmegaB
  • T_cmb
  • LoadMode
  • SaveMode
  • ConstraintConf
  • NumConstraints
  • NumKernels
  • Restart
  • LoadPreConstraints
  • GenerateFluctuation
  • SaveGrafic
  • UseAntialiasing
  • UseHanning
(C) Guilhem Lavaux, 2014 - 2017,
Last updated: November 21, 2014