CRK-HACC: Exascale Simulations for Modern Cosmological Surveys

Numerical simulations play a vital role in precision cosmology. Current and next-generation large-scale structure surveys of the Universe involve measurements at extremely low levels of statistical uncertainty, accompanied by high resolution data. Commensurate numerical predictions that capture the extensive dynamic range of cosmological scales are required to provide accompanying theoretical predictions. Exascale computing delivers a powerful new tool to perform state-of-the-art simulations to address the increasing demand for large-volume high fidelity simulations. We will present the CRK-HACC framework, a cosmology code built to run performantly on all modern GPU-accelerated supercomputers, taking full advantage of the computational capabilities of modern exascale machines.