PMN-body computes the non-linear evolution of the cosmological matter density contrast. It is based on the Particle Mesh (PM) technique. Written in C, the code is parallelized for shared-memory machines using Open Multi-Processing (OpenMP).
https://ui.adsabs.harvard.edu/abs/2004JApA...25...67B for use of the serial version; https://ui.adsabs.harvard.edu/abs/2015MNRAS.449L..41M for use of the parallelized version