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Grids and LHC Computing

Grids and LHC Computing. Visit of Prof. Michal Kleiber, Advisor to the President Republic of Poland. Frédéric Hemmer Deputy Head, IT Department 11 June 2007. How does the Grid work?. It relies on advanced software, called middleware .

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Grids and LHC Computing

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  1. Grids and LHC Computing Visit of Prof. Michal Kleiber, Advisor to the President Republic of Poland Frédéric HemmerDeputy Head, IT Department11 June 2007 CERN – March 2007

  2. How does the Grid work? • It relies on advanced software, called middleware. • Middleware automatically finds the data the scientist needs, and the computing power to analyse it. • Middleware balances the load on different resources. It also handles security, accounting, monitoring and much more. CERN – June 2007

  3. Why the Grid at CERN? CERN – June 2007

  4. The LHC accelerator and the four experiments CERN – June 2007

  5. View of the ATLAS detector (under construction) 150 million sensors deliver data … … 40 million times per second CERN – June 2007

  6. CERN – March 2007

  7. CERN – March 2007

  8. CERN – March 2007

  9. CERN – March 2007

  10. LHC Computing Grid project (LCG) • More than 100 computing centres • 12 large centres for primary data management: CERN (Tier-0) and eleven Tier-1s • 38 federations of smaller Tier-2 centres • 20 countries involved • Tier-2 Centres in Poland CYFRONET Krakow Warsaw University Poznan Supercomputing &Networking Centre (PSNC) CERN – June 2007

  11. CERN – March 2007

  12. The Géant Research Network • General purpose network connecting national research and education nets (NREN) • For LHC in addition: Optical Private Network with 10Gb/s links over dark fibres CERN – June 2007

  13. Today’s installation at CERN: 4000 TB on 14’000 drives (NAS Disk Storage) 8500 CPUs (Linux) in 3500 boxes 40’000 Tape Slots installed and 130 high speed drives (10 PB capacity) CERN – June 2007

  14. Massive ramp-up during 2006-08 CERN – June 2007

  15. Distribution of Computing Services CPU Disk Tape

  16. WLCG Collaboration • The Collaboration • 4 LHC experiments • ~120 computing centres • 12 large centres (Tier-0, Tier-1) • 38 federations of smaller “Tier-2” centres • Growing to ~40 countries • Memorandum of Understanding • Agreed in October 2005, now being signed • Resources • Commitment made each October for the coming year • 5-year forward look • Relies on EGEE and OSG (and other regional efforts)

  17. Worldwide grid for science • ~250 sites – some very big, some very small • 200 Virtual Organisations with >35 000 CPUs

  18. The EGEE project • EGEE • Started in April 2004, now in 2nd phase with 91 partners in 32 countries • 3rd phrase (2008-2010) in preparation • Objectives • Large-scale, production-quality grid infrastructure for e-Science • Attracting new resources and users from industry as well asscience • Maintain and further improve“gLite” Grid middleware Partners in Poland: CYFRONET, Warsaw Uni, PSNC

  19. Applications on EGEE • >200 VOs from several scientific domains • Astronomy & Astrophysics • Civil Protection • Computational Chemistry • Comp. Fluid Dynamics • Computer Science/Tools • Condensed Matter Physics • Earth Sciences • Fusion • High Energy Physics • Life Sciences • Further applications under evaluation 98k jobs/day Applications have moved from testing to routine and daily usage ~80-90% efficiency 19

  20. Example: ITU Project • International Telecommunication Union • ITU/BR: Radio-communication Sector • management of the radio-frequency spectrum and satellite orbits for fixed, mobile, broadcasting and other communication services • RRC-06 (15 May–16 June 2006) • 120 countries negotiate the new frequency plan • introduction of digital broadcasting • UHF (470-862 Mhz) & VHF (174-230 Mhz) • Demanding computing problem with short-deadlines • Using EGEE grid were able to complete a cycle in less than 1 hour 20

  21. Contributing EGEE Computer Centres • CERN • INFN-CNAF Bologna • (+several sites of the Italian GridIT infrastructure) • PIC Barcelona • CNB Madrid • DESY (Hamburg and Zeuthen) • Cyfronet Krakow • Moscow State University

  22. Example: EGEE Attacks Avian Flu • EGEE used to analyse 300,000 possible potential drug compounds against bird flu virus, H5N1. • 2000 computers at 60 computer centres in Europe, Russia, Asia and Middle East ran during four weeks in April - the equivalent of 100 years on a single computer. • Potential drug compounds now being identified and ranked. Neuraminidase, one of the two major surface proteins of influenza viruses, facilitating the release of virions from infected cells. Image Courtesy Ying-Ta Wu, AcademiaSinica. 22

  23. Sustainability • Need to prepare for permanent Grid infrastructure • Ensure a high quality of service for all user communities • Independent of short project funding cycles • Infrastructure managed in collaboration with National Grid Initiatives (NGIs) • European Grid Initiative (EGI) 23

  24. For more information about the Grid: www.gridcafe.org www.eu-egee.org www.cern.ch/lcg Thank you for your kind attention! CERN – June 2007

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