CERN Accelerating science

Article
Report number	cs/0306085 ; CHEP-2003-TUCT002
Title	GANGA: a user-Grid interface for Atlas and LHCb
Related title	A TOROIDAL LHC APPARATUS LARGE HADRON COLLIDER BEAUTY EXPERIMENT LARGE HADRON COLLIDER
Author(s)	Harrison, K. (Cambridge U.) ; Lavrijsen, W.T.L.P. (LBL, Berkeley) ; Tull, C.E. (LBL, Berkeley) ; Mato, P. (CERN) ; Soroko, A. (Oxford U.) ; Tan, C.L. (Birmingham U.) ; Brook, N. (Bristol U.) ; Jones, R.W.L. (Lancaster U.)
Publication	2003
Imprint	14 Jun 2003
Number of pages	9
In:	2003 Conference for Computing in High-Energy and Nuclear Physics, La Jolla, CA, USA, 24 - 28 Mar 2003, pp.TUCT002
Subject category	Computing and Computers
Accelerator/Facility, Experiment	CERN LHC ; LHCb
Abstract	The Gaudi/Athena and Grid Alliance (GANGA) is a front-end for the configuration, submission, monitoring, bookkeeping, output collection, and reporting of computing jobs run on a local batch system or on the grid. In particular, GANGA handles jobs that use applications written for the Gaudi software framework shared by the Atlas and LHCb experiments. GANGA exploits the commonality of Gaudi-based computing jobs, while insulating against grid-, batch- and framework-specific technicalities, to maximize end-user productivity in defining, configuring, and executing jobs. Designed for a python-based component architecture, GANGA has a modular underpinning and is therefore well placed for contributing to, and benefiting from, work in related projects. Its functionality is accessible both from a scriptable command-line interface, for expert users and automated tasks, and through a graphical interface, which simplifies the interaction with GANGA for beginning and c1asual users. This paper presents the GANGA design and implementation, the development of the underlying software bus architecture, and the functionality of the first public GANGA release.

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