Application Experiences on a GPU-Accelerated Arm-based HPC Testbed
Abstract
This paper assesses and reports the experience of ten teams working to port,validate, and benchmark several High Performance Computing applications on a novel GPU-accelerated Arm testbed system. The testbed consists of eight NVIDIA Arm HPC Developer Kit systems built by GIGABYTE, each one equipped with a server-class Arm CPU from Ampere Computing and A100 data center GPU from NVIDIA Corp. The systems are connected together using Infiniband high-bandwidth low-latency interconnect. The selected applications and mini-apps are written using several programming languages and use multiple accelerator-based programming models for GPUs such as CUDA, OpenACC, and OpenMP offloading. Working on application porting requires a robust and easy-to-access programming environment, including a variety of compilers and optimized scientific libraries. The goal of this work is to evaluate platform readiness and assess the effort required from developers to deploy well-established scientific workloads on current and future generation Arm-based GPU-accelerated HPC systems. The reported case studies demonstrate that the current level of maturity and diversity of software and tools is already adequate for large-scale production deployments.
Keywords
Cite
@article{arxiv.2209.09731,
title = {Application Experiences on a GPU-Accelerated Arm-based HPC Testbed},
author = {Wael Elwasif and William Godoy and Nick Hagerty and J. Austin Harris and Oscar Hernandez and Balint Joo and Paul Kent and Damien Lebrun-Grandie and Elijah Maccarthy and Veronica G. Melesse Vergara and Bronson Messer and Ross Miller and Sarp Opal and Sergei Bastrakov and Michael Bussmann and Alexander Debus and Klaus Steinger and Jan Stephan and Rene Widera and Spencer H. Bryngelson and Henry Le Berre and Anand Radhakrishnan and Jefferey Young and Sunita Chandrasekaran and Florina Ciorba and Osman Simsek and Kate Clark Filippo Spiga and Jeff Hammond and John E. Stone. David Hardy and Sebastian Keller and Jean-Guillaume Piccinali. Christian Trott},
journal= {arXiv preprint arXiv:2209.09731},
year = {2024}
}