Operational experience and R&D results using the Google Cloud for High-Energy Physics in the ATLAS experiment

Author:

Megino Fernando Barreiro1,De Kaushik1,Elmsheuser Johannes2ORCID,Klimentov Alexei2ORCID,Lassnig Mario3,Euell Miles4,Hartmann Nikolai5,Maeno Tadashi2,Outschoorn Verena Martinez6,Sandesara Jay Ajitbhai6,Sell Dustin4

Affiliation:

1. Department of Physics, University of Texas at Arlington, 502, Yates Street, Arlington, TX 76019, USA

2. Brookhaven National Laboratory, P. O. Box 5000, Upton, NY 11973-5000, USA

3. European Organization for Nuclear Research (CERN), 1211, Geneva 23, Switzerland

4. Google, 655, New York Ave NW, Washington, DC 20001, USA

5. Elementary Particle Physics Group, Ludwig-Maximilians-Universität München, Am Coulombwall 1, 85748 Garching, Germany

6. Department of Physics, University of Massachusetts at Amherst, Amherst, MA 01003, USA

Abstract

The ATLAS experiment at CERN relies on a Worldwide Distributed Computing Grid infrastructure to support its physics program at the Large Hadron Collider. ATLAS has integrated cloud computing resources to complement its Grid infrastructure and conducted an R&D program on Google Cloud Platform. These initiatives leverage key features of commercial cloud providers: lightweight configuration and operation, elasticity and availability of diverse infrastructures. This paper examines the seamless integration of cloud computing services as a conventional Grid site within the ATLAS workflow management and data management systems, while also offering new setups for interactive, parallel analysis. It underscores pivotal results that enhance the on-site computing model and outlines several R&D projects that have benefited from large-scale, elastic resource provisioning models. Furthermore, this study discusses the impact of cloud-enabled R&D projects in three domains: accelerators and AI/ML, ARM CPUs and columnar data analysis techniques.

Publisher

World Scientific Pub Co Pte Ltd

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