Fermilab Computing Division

CS Document 462-v1

D0 Data Processing with EDG and LCG

Document #:
CS-doc-462-v1
Document type:
Conference
Submitted by:
JoAnn Larson
Updated by:
JoAnn Larson
Document Created:
05 Aug 2004, 11:49
Contents Revised:
30 Sep 2004, 05:33
Metadata Revised:
20 Jan 2005, 10:19
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CS-doc-462-v0
29 Sep 2004, 13:51
Abstract:
The D0 experiment at the Tevatron is collecting some 100 Terabytes of data each year and has a very high need of computing resources for the various parts of the physics program. D0 meets these demands by establishing a world - wide distributed computing model using more and more GRID
technologies.

Distributed resources are used for D0 MC production and data reprocessing of 1 billion events, requiring 250 TB to be transported over WANs. While in 2003 most of this computing at remote sites was distributed manually, some data reprocessing was performed with the EDG.

In 2004 GRID tools are increasingly and successfully employed. We will report on performing MC production and data reprocessing using EDG and LCG. We will explain the D0 computing environment was linked to these GRID platforms and will discuss some lessons from subjecting a generic GRID structure to real data for the first time. An outlook on plans for applying LCG within D0 is given.

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Notes and Changes:
Fermilab Publication number CONF-04-477-CD
Associated with Events:
CHEP2004 held from 27 Sep 2004 to 01 Oct 2004 in Interlaken, Switzerland
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