21-27 March 2009
Prague
Europe/Prague timezone

A Dynamic System for ATLAS Software Installation on OSG Grid site

23 Mar 2009, 17:10
20m
Panorama (Prague)

Panorama

Prague

Prague Congress Centre 5. května 65, 140 00 Prague 4, Czech Republic
oral Grid Middleware and Networking Technologies Grid Middleware and Networking Technologies

Speaker

Mr Xin Zhao (Brookhaven National Laboratory,USA)

Description

ATLAS Grid production, like many other VO applications, requires the software packages to be installed on remote sites in advance. Therefore, a dynamic and reliable system for installing the ATLAS software releases on Grid sites is crucial to guarantee the timely and smooth start of ATLAS production and reduce its failure rate. In this talk, we discuss the issues encountered in the previous software installation system, and introduce the new approach, which is built upon the new development in the areas of the ATLAS workload management system (PanDA), and software package management system (pacman). It is also designed to integrate with the EGEE ATLAS software installation framework. In the new system, ATLAS software releases are packaged as pacball, a uniquely identifiable and reproducible self-installing data file. The distribution of pacballs to remote sites is managed by ATLAS data management system (DQ2) and PanDA server. The installation on remote sites is automatically triggered by the PanDA pilot jobs. The installation job payload connects to the EGEE ATLAS software installation portal, making the information of installation status easily accessible across OSG and EGEE Grids. The deployment of this new system and its performance in USATLAS production will also be discussed.

Primary author

Mr Xin Zhao (Brookhaven National Laboratory,USA)

Co-authors

A.S. Thompson (University of Glasgow, United Kingdom) Alessandro De Salvo (Istituto Nazionale di Fisica Nucleare, Italy) Frederick Luehring (Indiana University,USA) John Brunelle (Boston University, USA) Saul Youssef (Boston University, USA) Tadashi Maeno (Brookhaven National Laboratory,USA) Torre Wenaus (Brookhaven National Laboratory,USA)

Presentation Materials