The NEMO High Performance Computing Cluster at the University of Freiburg has been made available to researchers of the ATLAS and CMS experiments. Users access the cluster from external machines connected to the World-wide LHC Computing Grid (WLCG). This paper describes how the full software environment of the WLCG is provided in a virtual machine image. The interplay between the schedulers for NEMO and for the external clusters is coordinated through the ROCED service. A cloud computing infrastructure is deployed at NEMO to orchestrate the simultaneous usage by bare metal and virtualized jobs. Through the setup, resources are provided to users in a transparent, automatized, and on-demand way. The performance of the virtualized environment has been evaluated for particle physics applications.
@article{arxiv.1812.11044,
title = {Dynamic Virtualized Deployment of Particle Physics Environments on a High Performance Computing Cluster},
author = {Felix Bührer and Frank Fischer and Georg Fleig and Anton Gamel and Manuel Giffels and Thomas Hauth and Michael Janczyk and Konrad Meier and Günter Quast and Benoît Roland and Ulrike Schnoor and Markus Schumacher and Dirk von Suchodoletz and Bernd Wiebelt},
journal= {arXiv preprint arXiv:1812.11044},
year = {2018}
}