Energy oriented Center of Excellence for Computing Applications (EoCoE)

High performance computing is becoming an essential tool for the development and optimal deployment of renewable energy generation and storage technologies. The Energy oriented Centre of Excellence (EoCoE) brings together four different scientific communities (meteo4energy, water4energy, materials4energy and fusion4energy) which already rely heavily on HPC to make advances in, for example, wind-, solar-, hydro- and geothermal power, nuclear fusion and high-capacity batteries. Harnessing its full potential, on the other hand, requires making efficient use of the upcoming exascale computers (hierarchical architectures with a large number of multicore nodes), and this in turn means that applications need to be significantly modified if they are to reach the expected performance level. A key paradigm in EoCoE is to foster close, sustainable collaborations between HPC experts and scientists from the four energy application domains. This is achieved through a combination specialized workshops, brokered bilateral links ('code teams') and shared collaborative platforms. In most cases this begins with a performance evaluation of the application using the in-house benchmarking package JUBE to automate the extraction of key metrics in a strictly reproducible manner. Performance can then be periodically re-evaluated after optimisation or more substantial refactoring - such as the introduction of a new linear algebra solver - in order to monitor the impact of these developments on the application in realistic production scenarios