ARCHER2: the impact of CPU frequency on application performance
6 January 2023
On the 12 December 2022 the default CPU frequency on ARCHER2 compute nodes was set to be 2.0 GHz. Previously, the CPU frequency was unset, which meant that the base frequency of the CPU, 2.25 GHz, was almost always used by jobs running on the compute nodes. EPCC's Andy Turner has summarised some of the benchmarking work that led to this change, how users can access information on energy use of jobs, and how this information can be used to assess the energy efficiency of their use of ARCHER2.
Why are energy consumption and power draw important on ARCHER2? There are a number of benefits and potential benefits to reducing the energy consumption and power draw of the service. Read Andy Turner's article on the ARCHER2 website.
About ARCHER2
ARCHER2 serves as the UK’s National High Performance Computing system and facilitates world-class science for UK researchers. It is provided by UKRI, EPCC, the University of Edinburgh, and Cray, a Hewlett Packard Enterprise company. ARCHER2 is hosted and managed by EPCC: read more in the HPC Services section of our website.
