Köln 2004 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 18: Instrumentation and Applications II
HK 18.8: Vortrag
Dienstag, 9. März 2004, 17:15–17:30, C
Grid Computing Technologies in COMPASS Data Analysis — •F.-H. Heinsius1, H. Fischer1, R. Kuhn2, and L. Schmitt2 — 1Physikalisches 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.