21-27 March 2009
Prague
Europe/Prague timezone

Deployment of Job Priority mechanisms in the Italian cloud of the ATLAS experiment

26 Mar 2009, 17:30
20m
Club C (Prague)

Club C

Prague

Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
oral Distributed Processing and Analysis Distributed Processing and Analysis

Speaker

Dr Alessandra Doria (INFN Napoli)

Description

An optimized use of the grid computing resources in the ATLAS experiment requires the enforcement of a mechanism of job priorities and of resource sharing among the different activities inside the ATLAS VO. This mechanism has been implemented through the VOViews publication in the information system and the fair share implementation per UNIX group in the batch system. The VOView concept consists of publishing resource information, such as running and waiting jobs, as a function of VO groups and roles. The ATLAS Italian Cloud is composed of the CNAF Tier1 and Roma Tier2, with farms based on the LSF batch system, and the Tier2s of Frascati, Milano and Napoli based on PBS/Torque. In this paper we describe how test and deployment of the job priorities has been performed in the cloud, where the VOMS-based regional group /atlas/it has been created. We show that the VOviews are published and correctly managed by the WMS and that the resources allocated to generic VO users, users with production role and users of the /atlas/it group correspond to the defined share.
Presentation type (oral | poster) oral

Primary authors

Dr Alessandra Doria (INFN Napoli) Dr Alessandro Barchiesi (INFN Roma1) Dr Alessandro De Salvo (INFN Roma1) Dr Alessandro Italiano (INFN CNAF) Dr Claudia Ciocca (INFN CNAF) Dr Davide Salomoni (INFN CNAF) Dr Elisa Musto (INFN Napoli) Dr Elisabetta Vilucchi (INFN Frascati) Dr Gianpaolo Carlino (INFN Napoli) Prof. Laura Perini (INFN Roma1) Dr Lorenzo Rinaldi (INFN CNAF) Dr Luca Vaccarossa (INFN Milano) Dr Massimo Pistolese (INFN Milano) Dr Simone Campana (CERN)

Presentation Materials