Grid Applications for the ATLAS LHC Experiment
& Beyond
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| ATLAS is a general-purpose particle physics experiment which will study topics including the origin of mass, the processes that allowed an excess of matter over antimatter in the universe, evidence for Supersymmetry and other new physics, including even micro black hole production! The experiment is being constructed by some 2000 scientists in over 100 institutes in 6 continents. The experiment will be located at the 27km circumference Large Hadron Collider at CERN in Geneva. |
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Despite highly efficient filters acting on the raw data read by the detector, the 'good' events will still correspond to several Petabytes of data per year, which will require millions of SpecInt95 to process and analyse. Even now, to design the detector and to understand the physics, many millions of simulated events also have to be produced. |
| Only a Grid can satisfy our requirements.ATLAS is a global collaboration with Grid testbeds already deployed worldwide. In the autumn we will create our first global Grid, producing and analysing simulated data worldwide.While building on generic middleware, we are will required to develop several components, which may be reusable. | |
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These are being exercised and developed in the context of Data Challenges of increasing size and complexity The second of these is currently being performed in nearly 80 sites and 6 continents. All of the production is being done using 3 Grid deployments. At present, it is experiments like ATLAS that are devising the schemes to integrate such deployments. |
| The UK has all four Tier-2 facilities already participating (ScotGrid, NorthGrid, SouthGrid and LondonGrid). We already provide more cpu from the UK than is provided at CERN. |
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You can learn about ATLAS
Grid projects here, or at the current logbook describing the detailed progress in the UK, and a .spreadsheet giving even more detail. Alternatively, you can look at the ATLAS
Grid web page at CERN, here.
There is also a UK e-Science ATLAS UK Computing Project delivering experiment-specific software for simualtion and reconstruction, as well as frameworks for testing, validation and analysis. |
Last modified Fri 9 May 2008 . View page history
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