Speaker
Description
We describe recent developments in the high-order open-source simulation
package Nek5000/RS, which is designed to solve turbulent thermal-fluids
applications on platforms ranging from laptops to exascale computers. We begin
with strong-scaling design considerations and discuss scaling on pre-exascale
platforms such as ORNL's V100-based Summit and ANL's A100-based Polaris
platforms and on the ORNL's exascale platform, Frontier, which has 72,000+ AMD
MI250X GCDs. We discuss new features for Nek5000/RS, including the
reduced-order modeling package, NekROM, developed by Kento Kaneko (MIT) and
Ping-Hsuan Tsai (V.Tech) and MHD support in NekRS, which is being developed by
ANL summer student, Yichen Guo (V.Tech). Several examples are presented for
each.
Relevance for Nek [100 words max]
Paul
