Challenging the challenge: handling data in the Gigabit/s range

Details Challenging the challenge: handling data in the Gigabit/s range Challenging the challenge: handling data in the Gigabit/s range

2003-05-16

arxiv.org/abs/hep-ex/0305044v3

Physics

High Energy Physics

High Energy Physics - Experiment

Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 9 pages, PDF. PSN MOG

Scientific paper

The ALICE experiment at CERN will propose unprecedented requirements for event building and data recording. New technologies will be adopted as well as ad-hoc frameworks, from the acquisition of experimental data up to the transfer onto permanent media and its later access. These issues justify a careful, in-depth planning and preparation. The ALICE Data Challenge is a very important step of this development process where simulated detector data is moved from dummy data sources up to the recording media using processing elements and data-paths as realistic as possible. We will review herein the current status of past, present and future ALICE Data Challenges, with particular reference to the sessions held in 2002 when - for the first time - streams worth one week of ALICE data were recorded onto tape media at sustained rates exceeding 300 MB/s.

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