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Köln 2004 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 18: Instrumentation and Applications II

HK 18.8: Talk

Tuesday, March 9, 2004, 17:15–17:30, C

Grid Computing Technologies in COMPASS Data Analysis — •F.-H. Heinsius1, H. Fischer1, R. Kuhn2, and L. Schmitt21Physikalisches Institut, Albert-Ludwigs-Universität Freiburg — 2Physik-Department E18, Technische Universität München

The COMPASS experiment at CERN collects about 250 TByte of raw data per year. The production of data summary tapes at CERN requires an equivalent of 100 000 Si2k computing units. It involves submission of about 250 000 batch jobs, each running 8 hours with one job finishing on average every 2 minutes. To cope with these demands a new computing and analysis model has been developed. In addition we started to adapt emerging technologies in the framework of grid computing. Data summary files are distributed through international Gigabit links to the computer centers, where the physics analysis is performed. The Monte Carlo production is performed at the German Grid Computing Center (GridKa) located in Karlsruhe. In this talk the experience gained in the physics analysis of large data sets and further plans for implementing grid technologies will be presented.
The project is supported by BMBF.

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