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Authors: Tapio Niemi 1 ; Marko Niinimaki 2 and Jukka Kommeri 3

Affiliations: 1 CERN, Switzerland ; 2 Univ. Appl. Sci. West Switzerland, Switzerland ; 3 Helsinki Institute of Physics, Finland

Keyword(s): High-energy physics, Virtualization, Energy-efficiency.

Abstract: Modern multi-core servers are able to run growing amount of physics analysis tasks. As the count of CPU cores keep growing, a need for sharing a single server among several analysis tasks becomes more difficult. The need for varying analysis environments increase the complexity of an computing node software collection. In this paper we study how virtual machines should be deployed and loaded when running high-energy physics analysis applications to achieve high throughput and minimal energy consumption. We build a test environment using a realistic data analysis software and performed a large set of test runs. We used both 4 core single processor and two processor 12 core servers to evaluate bottlenecks of physics analysis software. Our results indicate that both throughput and energy efficiency strongly depend on how many virtual machines (VM) are run in a computing node and how many analysis applications are processed in parallel in a VM: It is more efficient to have less VMs with more parallel applications than one application in each VM. Thus, we suggest that jobs of the same user running in the same environment should be combined to the same VMs instead of running each job in a different VM. (More)

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Paper citation in several formats:
Niemi, T.; Niinimaki, M. and Kommeri, J. (2012). Study of Virtualization Energy-efficiency in High-energy Physics Computing. In Proceedings of the Sixth International Symposium on e-Health Services and Technologies and the Third International Conference on Green IT Solutions - ICGREEN; ISBN 978-989-8565-27-3, SciTePress, pages 77-82. DOI: 10.5220/0004474800770082

@conference{icgreen12,
author={Tapio Niemi. and Marko Niinimaki. and Jukka Kommeri.},
title={Study of Virtualization Energy-efficiency in High-energy Physics Computing},
booktitle={Proceedings of the Sixth International Symposium on e-Health Services and Technologies and the Third International Conference on Green IT Solutions - ICGREEN},
year={2012},
pages={77-82},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004474800770082},
isbn={978-989-8565-27-3},
}

TY - CONF

JO - Proceedings of the Sixth International Symposium on e-Health Services and Technologies and the Third International Conference on Green IT Solutions - ICGREEN
TI - Study of Virtualization Energy-efficiency in High-energy Physics Computing
SN - 978-989-8565-27-3
AU - Niemi, T.
AU - Niinimaki, M.
AU - Kommeri, J.
PY - 2012
SP - 77
EP - 82
DO - 10.5220/0004474800770082
PB - SciTePress

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