5–9 Sept 2011
Europe/London timezone

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

8 Sept 2011, 16:35
25m
Parallel talk Track 1: Computing Technology for Physics Research Thursday 08th - Computing Technology for Physics Research

Speaker

Mr Federico Carminati (CERN, Geneva, Switzerland)

Description

Following a previous publication, 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.

Primary authors

Mr Costin Grigoras (CERN, Geneva, Switzerland) Dr Eric Widmer (Dpt of Sociology, University of Geneva) Mr Federico Carminati (CERN, Geneva, Switzerland) Dr Gil Viry (Dpt of Sociology, University of Geneva) Dr Giuliana Galli Carminati (University Hospital of Geneva)

Presentation materials

Peer reviewing

Paper