https://doi.org/10.1051/epjconf/202125102005
Seamless integration of commercial Clouds with ATLAS Distributed Computing
1 University of Texas, Arlington, TX, USA
2 California State University, Fresno, CA, USA
3 Brookhaven National Laboratory, Upton, NY, USA
4 CERN, Geneva, Switzerland
5 Bergische Universität Wuppertal, Germany
* e-mail: johannes.elmsheuser@cern.ch
Published online: 23 August 2021
The CERN ATLAS Experiment successfully uses a worldwide distributed computing Grid infrastructure to support its physics programme at the Large Hadron Collider (LHC). The Grid workflow system PanDA routinely manages up to 700,000 concurrently running production and analysis jobs to process simulation and detector data. In total more than 500 PB of data are distributed over more than 150 sites in the WLCG and handled by the ATLAS data management system Rucio. To prepare for the ever growing data rate in future LHC runs new developments are underway to embrace industry accepted protocols and technologies, and utilize opportunistic resources in a standard way. This paper reviews how the Google and Amazon Cloud computing services have been seamlessly integrated as a Grid site within PanDA and Rucio. Performance and brief cost evaluations will be discussed. Such setups could offer advanced Cloud tool-sets and provide added value for analysis facilities that are under discussions for LHC Run-4.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
