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Computing Technical Design Report
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Computing Technical Design Report
Based on the experience acquired in running the data challenges and other productions, ATLAS is now preparing for the real data-taking scheduled for mid 2007.
We plan to put in place a Computing Operations Group which will be in charge of the organization and the running of the operations at Tier0, Tier-1s and Tier-2s.
Within the ATLAS VO, several working groups will be created. The definitions of the roles and responsibilities are currently being discussed.
An improved Production System is being prepared and will be tested in the context of the Service Challenge 3 (SC3) in which ATLAS intends to run a Tier-0 exercise in autumn 2005. That exercise will allow the production at Tier-0 and the data transfer from Tier-0 to Tier-1s to be tested. By the end of 2005, we foresee running a distributed Monte Carlo production, which will allow us to test data transfers between Tier-1s and Tier-2s, in both directions. The next step will be to run Data Challenge 3 in early 2006; that operation will be considered as a Computing System Commissioning.
Finally, Monitoring and Accounting are two important pieces for running the ATLAS productions in an efficient way. We intend to unify the existing systems assuming that the LCG Project could help us in this area.
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