The Community for Technology Leaders
2005 International Conference on Parallel Processing Workshops (ICPPW'05) (2005)
Oslo, Norway
June 14, 2005 to June 17, 2005
ISSN: 1530-2016
ISBN: 0-7695-2381-1
pp: 21-28
Heinz Stockinger , INFN, National Institute for Nuclear Physics and CERN, European Organization for Nuclear Research
Flavia Donno , INFN, National Institute for Nuclear Physics and CERN, European Organization for Nuclear Research
Giulio Eulisse , Northeastern University
Mirco Mazzucato , INFN, National Institute for Nuclear Physics
Conrad Steenberg , California Institute of Technology
ABSTRACT
<p>Grid enabledphysics analysis requires a WorkloadManagement System (WMS)that takes care of jinding suitable computing resources to execute data intensivejobs. A typical example is the WMS available in the LCG2 (also referred to as EGEE-0) software system, used by several scientific-experiments. Like many other current Grid systems, LCG2 provides a file level granularity for accessing and analysing data. However, application scientists such as High Energy Physicists often require a higher abstraction level for accessing data, i.e. they prefer to use datasets rather than files in their physics analysis.</p> <p>We have improved the current WMS (in particular the Matchmaker) to allow physicists to express their analysis job requirements in terms of datasets. This required modifications to the WMS and its interface to potential data catalogues. As a result, we propose a simple Data Location that is based on a web service approach and allows for interoperability of the WMS with new dataset and file catalogues. We took a particular High Energy Physics experiment as the source for our study and show that physics analysis can be improved by our modijications to the current Grid system.</p>
INDEX TERMS
CITATION

C. Steenberg, H. Stockinger, F. Donno, M. Mazzucato and G. Eulisse, "Matchmaking, Datasets and Physics Analysis," 2005 International Conference on Parallel Processing Workshops (ICPPW'05)(ICPPW), Oslo, Norway, 2005, pp. 21-28.
doi:10.1109/ICPPW.2005.48
101 ms
(Ver 3.3 (11022016))