World's second fastest supercomputer completes largest universe simulation

The world's second fastest supercomputer, Frontier, has completed the largest simulation of the universe to date. This simulation aims to test cosmological hydrodynamics and was developed at Oak Ridge National Laboratory. Frontier can perform 1.1 exaFLOPS. Frontier was previously the fastest supercomputer until El Capitan surpassed it in November 2024. The simulation uses the Hardware/Hybrid Accelerated Cosmology Code (HACC), which models the universe's evolution and incorporates various physical forces beyond gravity. The results from this simulation will be available to astronomers for research on dark matter, dark energy, and alternative gravity models. This marks a significant advancement in computational astrophysics, allowing for more detailed and realistic universe modeling.