Large supercomputing facilities are critical to research in many areas that impact on decisions such as how to address the current climate emergency. For example, climate modelling, renewable energy facility design and new battery technologies. However, these systems themselves are a source of large amounts of emissions due to the embodied emissions associated with their construction, transport, and decommissioning; and the power consumption associated with running the facility. Recently, the UK National Supercomputing Service, ARCHER2, has been analysing the impact of the facility in terms of energy and emissions. Based on this work, we have made changes to the operation of the service that give a cumulative saving of more than 20% in power draw of the computational resources with all application benchmarks showing reduced power to solution. In this paper, we describe our analysis and the changes made to the operation of the service to improve its energy efficiency, and thereby reduce its climate impacts.

翻译：大型超级计算设施对许多领域的研究至关重要，这些研究影响诸如如何应对当前气候紧急情况等决策，例如气候建模、可再生能源设施设计和新电池技术。然而，这些系统本身因建设、运输和退役相关的隐含排放，以及运行设施的电力消耗，成为大量排放的来源。近期，英国国家超级计算服务ARCHER2一直在分析该设施在能源和排放方面的影响。基于此工作，我们对服务运行进行了调整，使计算资源的电力消耗累计节省超过20%，且所有应用基准测试显示功耗降低。本文描述了我们的分析以及为提高能效、从而减少气候影响而对服务运行所做的调整。