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Towards an HPC cluster digital twin and scheduling framework for improved energy efficiency

Kammeyer Alexander, Burger Florian, Lübbert Daniel, Wolter Katinka

Annals of Computer Science and Information Systems

2023

Vol. 35

265--268

Demand for compute resources and thus energy demand for HPC are steadily increasing while the energy market transforms to renewable energy and is facing significant price increases. Optimizing energy efficiency of HPC clusters is therefore a major concern. Different possible optimization dimensions are discussed in this paper. This paper presents a digital twin design for analyzing and reducing energy consumption of a real-world HPC system. The digital twin is based on the HPC cluster at PTB. The digital twin receives information from multiple internal and external data sources to cover the different optimization opportunities. The digital twin also consists of a scheduling simulation framework that uses the data from the digital twin and real-world job traces to test the influence of the different parameters on the HPC cluster.