CONCEPT - The COsmological $N$-body CodE in PyThon

TL;DR

CONCEPT is an open-source Python-based cosmological N-body simulation code designed for ease of use and parallel computing, supporting various gravity calculation algorithms for dark matter simulations.

Contribution

It introduces a flexible, user-friendly Python framework for cosmological N-body simulations with support for multiple gravity algorithms and parallel execution.

Findings

Supports PP, PM, and P3M algorithms for gravity computation.

Designed for massively parallel distributed memory systems.

Aims to simplify the process of running and developing cosmological simulations.

Abstract

CO$N$CEPT (COsmological $N$-body CodE in PyThon) is a free and open-source code for cosmological $N$-body simulations on massively parallel computers with distributed memory. Collisionless dark matter is the only implemented particle species. Gravity can be computed using the PP, PM or the P$^{3}$M algorithm. The goal of CO$N$CEPT is to make it pleasant to work with cosmological $N$-body simulations - for the cosmologist as well as for the source code developer. This is the user guide. The source code and additional documentation can be found at https://github.com/jmd-dk/concept/