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Filipcic, A.; Haug, S.; Hostettler, M.; Walker, R. und Weber, M. (2015): ATLAS computing on CSCS HPC. In: 21st International Conference On Computing in High Energy and Nuclear Physics (Chep2015),Parts 1-9, Bd. 664, 092011

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Abstract

The Piz Daint Cray XC30 HPC system at CSCS, the Swiss National Supercomputing centre, was the highest ranked European system on TOP500 in 2014, also featuring GPU accelerators. Event generation and detector simulation for the ATLAS experiment have been enabled for this machine. We report on the technical solutions, performance, HPC policy challenges and possible future opportunities for HEP on extreme HPC systems. In particular a custom made integration to the ATLAS job submission system has been developed via the Advanced Resource Connector (ARC) middleware. Furthermore, a partial GPU acceleration of the Geant4 detector simulations has been implemented.

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