Minisymposium Presentation

This talk is split into a summary of the work at DKRZ on the energy efficiency of the present supercomputer Levante and first insights from testing modular climate simulations on state-of-the-art hardware. A first overview covers job performance monitoring, energy measurement infrastructure and identified tuning options. Significant improvements on energy efficiency were already deployed based on both, systematic benchmarking of characteristic workloads and investigation of idle node configurations.Secondly, first results on analyzing the potential of executing functional units of modular simulations on their most suitable hardware in a heterogeneous cluster are shown. Modules of the climate simulation ICON are first benchmarked individually to be ultimately coupled again and distributed to their most energy efficient platform.