application repository
- name: EGEE-LHC Computing Grid (LCG) applications
- domain: High Energy Physics
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- description: LHC is the largest particle physics project in the world. When it begins to be operational, at CERN, it will generate about 15 Petabytes of data every year, which more than 6000 scientists around the world will access and analyse.
- functionalities: LHC Computing Project (LCG) aims at building and maintaining a data storage and analysis infrastructure for the entire high energy physics community that will use the LHC.
The data from the LHC experiments will be distributed around the globe, according to a four-tiered model. A primary backup will be recorded on tape at CERN, the "tier-0" center of LCG. After initial processing, this data will be distributed to a series of Tier-1 centers, that will in turn make data available to tier-2 centers. Individual scientists will access these facilities through tier-3 computing resources, which can consist of local clusters in a university department or even individual PCs. - middleware requirements: LHC Computing Grid (LCG) is the major application of EGEE, hence it is well satisfied by EGEE middleware. LCG has set up RB, BDII and MON system to monitor and manage the resources. CE and SE for ATLAS and CMS have already been installed. VOs for ATLAS and CMS have been set up. Jobs of different experiments can be controlled by VO to access different resources respectively. There are no significant requirements of EGEE applications which are still to be satisfied.
- resources requirements: Resource requirements of ATLAS and CMS computing will increase every year as the LHC runs in the coming years. The resources will be mainly used to do the following jobs: For more information on ATLAS and CMS experiments please refer to their web sites (http://atlas.web.cern.ch/Atlas/index.html and http://cms.cern.ch/)
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