Do regions of ALICE matter? Social relationships and data exchanges in the Grid

E. D. Widmer, F. Carminati, C. Grigoras, G. Viry, G. Galli Carminati

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Following a previous publication [1], this study aims at investigating the impact of regional affiliations of centres on the organisation of collaboration within the Distributed Computing ALICE infrastructure, based on social networks methods. A self-administered questionnaire was sent to all centre managers about support, email interactions and wished collaborations in the infrastructure. Several additional measures, stemming from technical observations were produced, such as bandwidth, data transfers and Internet Round Trip Time (RTT) were also included. Information for 50 centres were considered (60% response rate). Empirical analysis shows that despite the centralisation on CERN, the network is highly organised by regions. The results are discussed in the light of policy and efficiency issues.

Original languageEnglish
Title of host publication14TH INTERNATIONAL WORKSHOP ON ADVANCED COMPUTING AND ANALYSIS TECHNIQUES IN PHYSICS RESEARCH (ACAT 2011)
EditorsL Teodorescu
Place of PublicationBRISTOL
PublisherIOP Publishing Ltd.
Pages-
Number of pages8
Volume368
EditionConference 1
DOIs
Publication statusPublished - 2012
Event14th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT) - Uxbridge
Duration: 5 Sep 20119 Sep 2011

Conference

Conference14th International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT)
CityUxbridge
Period5/09/119/09/11

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