Software

GALIC – Code

The GALIC code is a publicly available program that implements a new iterative method for the construction of N-body galaxy models in collisionless equilibrium. The┬ámethod uses elements of Schwarzschild’s technique and of the made-to-measure method, but is based on a different principle. Starting with some initial assignment of particle velocities, the difference of the time-averaged…

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NGenIC – Code

NGenIC is an initial conditions code for cosmological structure formation that can be used to set-up random N-body realizations of Gaussian random fields with a prescribed power spectrum in a homogeneously sampled periodic box. The code creates cosmological initial conditions based on the Zeldovich approximation, in a format directly compatible with GADGET or AREPO. For…

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GADGET – Code

GADGET is a freely available code for cosmological N-body/SPH simulations on massively parallel computers with distributed memory. GADGET uses an explicit communication model that is implemented with the standardized MPI communication interface. The code can be run on essentially all supercomputer systems presently in use, including clusters of workstations or individual PCs. GADGET computes gravitational…

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AREPO – Code

The AREPO code is a cosmological hydrodynamical simulation code on a fully dynamic unstructured mesh. At present, hydrodynamic cosmological simulations usually employ either the Lagrangian smoothed particle hydrodynamics (SPH) technique, or Eulerian hydrodynamics on a Cartesian mesh with (optional) adaptive mesh refinement (AMR). Both of these methods have disadvantages that negatively impact their accuracy in…

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