MadVoro constructs three‑dimensional Voronoi diagrams in distributed‐memory systems using a parallel algorithm built on Delaunay triangulation. The library decomposes a point set across multiple processors, constructs local Delaunay triangulations, and then couples them via distributed communication to form a global Voronoi tessellation. It exposes an API that gives access to cells, faces, vertices, centroids, and cell volumes, enabling detailed mesh analysis at scale. MadVoro supports load balancing and data redistribution across hosts to optimize performance in high‑throughput simulations.

RICH (Racah Institute Computational Hydrodynamics) is a 2D hydrodynamic code based on Godunov's method. The code, largely based on AREPO (ascl:1909.010), acts on an unstructured moving mesh. It differs from AREPO in the interpolation and time advancement scheme as well as a novel parallelization scheme based on Voronoi tessellation. Though not universally true, in many cases a moving mesh gives better results than a static mesh: where matter moves one way and a sound wave is traveling in the other way (such that relative to the grid the wave is not moving), a static mesh gives better results than a moving mesh. RICH is designed in an object oriented, user friendly way that facilitates incorporation of new algorithms and physical processes.