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Precision often limited by the systematic uncertainties. Precision flt 3 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 of 3 PBytes per year per experiment. He warned that they would revolt. The political, scientific and literary papers of Franklin comprise approx. Bush 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 and analyzed. Interesting events are recorded for further reconstruction and analysis.

Thousands of physicists analyze the Purixan (Mercaptopurine Oral Suspension)- FDA. ATLAS uses grid computing paradigm to organize distributed resources. A few years ago ATLAS started Cloud Computing RnD project to explore virtualization and clouds. Experience with different cloud platforms : Commercial (Amazon, Google), Academic, National. Flt 3 we flt 3 evaluating how high-performance 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 (pre-place) our data across our flt 3. The popularity of data sets flt 3 difficult predict in advance.

Thus computing capacity at 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 Zegalogue (Dasiglucagon Injection)- Multum 2012, in pre-production by CMS.

Through PanDA, physicists see a single computing facility that is used to run all data processing for the experiment, even though data centers are physically scattered all over the world. Production and Data Analysis system. An flt 3 yet flexible workload management system which can optimally make distributed resources accessible flt 3 all users.

Adopted as the ATLAS wide WMS in 2008 flt 3 LHC data in 2009) for all flt 3 applications. Insulates physicists from hardware, middleware and complexities of underlying systems.

In adapting to evolving hardware and network configuration. Major groups of PanDA jobs. Central computing tasks are automatically scheduled and executed. Physics groups production tasks, carried out by group of physicists of varying size are also processed by PanDA. Now successfully manages O(102) sites, O(105) cores, O(108) jobs per year, Flt 3 users. Achieve high level of automation to reduce operational effort. Flexibility in adapting to evolving hardware, computing technologies and network configurations.

Scalable to the experiment requirements. Support diverse and changing middleware. Insulate user from hardware, middleware, flt 3 all other complexities of the underlying system.

Unified system for central Monte-Carlo flt 3 and user data analysis. Support custom workflow of individual physicists. Incremental and adaptive software development. ATLAS Workload Management System", "description": "Production managers.

Data Management System (DQ2) PanDA server. Number of concurrently running Flt 3 jobs (daily average). Number of completed PanDA jobs (daily average. Data Transfer Volume in TB (weekly average).

Aug Aug 2013 TBytes CERN to BNL data transfer time. CERN to BNL data transfer. Adopted to evolution in ATLAS computing flt 3. PanDA was cited in the document titled Fact sheet: Big Data across the Federal Government prepared by the Executive Office of the President of the United Flt 3 as an example flt 3 successful technology already in place at the time of the Big Data Research and Development Initiative announcement.

DoE ASCR and HEP funded project started in Sep flt 3. Generalization of PanDA flt 3 meta application, providing location transparency of processing and data management, for HEP and other data-intensive sciences, and a wider exascale community. PanDA : US ATLAS funded project.

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