Operating the Worldwide LHC Computing Grid: current and future challenges

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Molina, J. Flix^1 ; Forti, A.^2 ; Girone, M.^3 ; Sciaba, A.^3

Port d'Informació Científica, Bellaterra

E-08193, Spain^1

University of Manchester, Oxford Road, Manchester

M13 9PL, United Kingdom^2

European Organization for Nuclear Research, Geneve 23

CH-1211, Switzerland^3

关键词: CPU cores;    Future challenges;    GRID middleware;    Its efficiencies;    LHC computing grids;    Operational issues;    Operational procedures;    Storage resources;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/6/062044/pdf
DOI  :  10.1088/1742-6596/513/6/062044

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The Wordwide LHC Computing Grid project (WLCG) provides the computing and storage resources required by the LHC collaborations to store, process and analyse their data. It includes almost 200,000 CPU cores, 200 PB of disk storage and 200 PB of tape storage distributed among more than 150 sites. The WLCG operations team is responsible for several essential tasks, such as the coordination of testing and deployment of Grid middleware and services, communication with the experiments and the sites, followup and resolution of operational issues and medium/long term planning. In 2012 WLCG critically reviewed all operational procedures and restructured the organisation of the operations team as a more coherent effort in order to improve its efficiency. In this paper we describe how the new organisation works, its recent successes and the changes to be implemented during the long LHC shutdown in preparation for the LHC Run 2.