Mylan meda

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Apply event selection based on reconstructed objects quantities. Estimate efficiency of selection. Estimate background after selection.

Compare data and theory. Two main types of physics mylan meda at LHC. Searching for new particles. More data is the way of improving ,ylan search. Precision often limited by the systematic uncertainties. Precision measurements of Standard Model parameters allows important tests of the consistency of the theory.

Or for a needle in 20 million haystacks. Taking into account LHC duty cycle. Order mylan meda 3 PBytes per year per experiment. He warned that they would revolt. The political, scientific and literary papers of Franklin comprise approx. Mylan meda Presidential Library: 200 million s 4 million photographs A. Bush Presidential Library: 200 million s.

Business s sent per year PBytes. Petabytes of data to be treated nylan analyzed. Interesting events are recorded for further reconstruction and analysis. Thousands of physicists analyze the data. ATLAS uses grid computing paradigm to organize distributed resources. A few years ago ATLAS started Cloud Computing RnD project to explore mera and clouds.

Experience with different cloud platforms : Commercial (Amazon, Google), Academic, National. Now we are evaluating how mylan meda and super-computers can be used for data processing and analysis. Tier0 (CERN), 11 Tier1s, 140 Tier2s.

In ATLAS sites grouped into clouds for organizational reasons. Data Distribution patterns are discipline dependent. Data is staged to the site where the compute resources are located and data access by analysis code from local, site-resident storage. Thus we distribute mylan meda our data across our sites. The popularity of data sets is difficult predict in advance. Thus computing capacity mylan meda a site might not match the demand for certain data sets.

Different approaches are being implemented. Dynamic : if certain data is popular over Grid (i. The popular data can be accessed remotely. Both approaches have the underlying scenario that puts the WAN between the data and the executing analysis code. Adopted by AMS in 2012, in pre-production by CMS. Through PanDA, physicists see a single computing facility that is used to opto all data processing for mylan meda experiment, even though data mylaj mylan meda physically scattered all over the world.

Production and Data Analysis system. An automated yet flexible workload management system which can optimally make distributed resources accessible to all users.



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