Early Performance Results on 4th Gen Intel(R) Xeon (R) Scalable Processors with DDR and Intel(R) Xeon(R) processors, codenamed Sapphire Rapids with HBM

TL;DR

This paper reports early performance results of 4th Gen Intel Xeon processors with HBM, showing an 8.57x speedup over previous systems on complex physical simulations without code modifications.

Contribution

First performance evaluation of Sapphire Rapids Xeon processors with HBM on large-scale simulations, demonstrating significant speed improvements.

Findings

8.57x node-to-node performance improvement

No code modifications needed for speedup

Potential for faster and more complex physical simulations

Abstract

The Crossroads supercomputer was designed to simulate some of the most complex physical devices in the world. These simulations routinely require 1/2 petabyte or more of system memory running on thousands of compute nodes for months at a time on the most powerful supercomputers. Improvements in time to solutions for these workloads can have major impact on our mission capabilities. In this paper we present early results of representative application workloads on 4th Gen Intel Xeon and Intel Xeon Processors codenamed Sapphire Rapids with HBM. These results demonstrate an extremely promising 8.57x improvement (node to node) over our prior generation Intel Broadwell (BDW) based HPC systems. No code modifications were required to achieve this speedup, providing a compelling path forward toward major reductions in time to solution and the complexity of physical systems that can be simulated in the future.