Fermilab Computing Division

CS Document 648-v1

Data Reprocessing on Worldwide Distributed Systems

Document #:
CS-doc-648-v1
Document type:
Conference
Submitted by:
Daniel Wicke
Updated by:
Daniel Wicke
Document Created:
05 Jan 2005, 09:33
Contents Revised:
05 Jan 2005, 09:33
Metadata Revised:
20 Jan 2005, 09:30
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Abstract:
The D0 experiment faces many challenges enabling access to large datasets for physicists on 4 continents. The strategy followed is to make use of worldwide distributed computing clusters.

Since the begin of Tevatron Run-II (March 2001) all Monte-Carlo simulations are produced outside of Fermilab on remote systems. For analyses a system of regional analysis centres (RACs) was established which supply the associated institutes with the data. This structure which
is similar to the Tier structure foreseen for LHC was used in autumn 2003 to reprocess all D0-data with the up-to-date and much improved reconstruction software.

With these achievements D0 is the first high energy physics experiment to have implemented and operated all essential computing tasks on non-dedicated, worldwide distributed systems.

Files in Document:
  • Paper (Proceedings.pdf, 67.9 kB)
Other Files:
  • Poster (Poster.pdf, 550.9 kB)
Notes and Changes:
Fermilab Publication number CONF-04-457-CD
Associated with Events:
CHEP2004 held from 27 Sep 2004 to 01 Oct 2004 in Interlaken, Switzerland
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