Chronicles of Astra: Challenges and Lessons from the First Petascale Arm Supercomputer

K. Pedretti, A. Younge, S. Hammond, J. Laros, M. Curry, Michael J. Aguilar, R. Hoekstra, R. Brightwell
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引用次数: 8

Abstract

Arm processors have been explored in HPC for several years, however there has not yet been a demonstration of viability for supporting large-scale production workloads. In this paper, we offer a retrospective on the process of bringing up Astra, the first Petascale supercomputer based on 64-bit Arm processors, and validating its ability to run production HPC applications. Through this process several immature technology gaps were addressed, including software stack enablement, Linux bugs at scale, thermal management issues, power management capabilities, and advanced container support. From this experience, several lessons learned are formulated that contributed to the successful deployment of Astra. These insights can be helpful to accelerate deploying and maturing other first-seen HPC technologies. With Astra now supporting many users running a diverse set of production applications at multi-thousand node scales, we believe this constitutes strong supporting evidence that Arm is a viable technology for even the largest-scale supercomputer deployments.
阿斯特拉编年史:挑战和教训,从第一个千兆臂超级计算机
Arm处理器已经在高性能计算领域探索了好几年,但是还没有一个支持大规模生产工作负载的可行性证明。在本文中,我们回顾了第一台基于64位Arm处理器的Petascale超级计算机Astra的开发过程,并验证了其运行生产HPC应用程序的能力。通过这个过程,解决了几个不成熟的技术差距,包括软件堆栈启用、大规模Linux错误、热管理问题、电源管理功能和高级容器支持。从这一经验中吸取了一些教训,这些教训有助于Astra的成功部署。这些见解有助于加速部署和成熟其他首次出现的HPC技术。随着Astra现在支持许多用户在数千个节点规模上运行各种生产应用程序,我们相信这构成了强有力的证据,证明Arm是一种可行的技术,即使是最大规模的超级计算机部署。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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