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LHC Tier 2 Networking BOF

LHC Tier 2 Networking BOF. Joe Metzger metzger@es.net Joint Techs Vancouver 2005. LHC: Accelerator at CERN. Used by physicists from around the world. http://www.ilrasoiodioccam.it/articoli/lhc.html. http://hepweb.rl.ac.uk/ppUKpics/images/POW/1999/990303.jpg.

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LHC Tier 2 Networking BOF

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  1. LHC Tier 2 Networking BOF Joe Metzger metzger@es.net Joint Techs Vancouver 2005

  2. LHC: Accelerator at CERN.Used by physicists from around the world. http://www.ilrasoiodioccam.it/articoli/lhc.html

  3. http://hepweb.rl.ac.uk/ppUKpics/images/POW/1999/990303.jpg

  4. North American LHC Site Hierarchy • Tier 0 CERN • Tier 1 Regional Archive & Analysis • US • Brookhaven ATLAS • FERMI CMS • Canada • TRIUMF ATLAS • Tier 2 Analysis Centers • Universities

  5. Data Challenges • SC1: initial tests between some Tier-1 sites and CERN. Datafiles transported from disk to disk using globus_url_copy. Date: December 2004. Result: tests were done with BNL, CCIN2P3, Fermilab, FZK and SARA. • SC2: sustained file transfers with an aggregated rate of 500 MByte/sec out of CERN. Disk to disk using software components from the radiant service at CERN. Participating sites: CCIN2P3, CNAF, Fermilab, FZK, RAL, SARA. Date: last two weeks of March 2005. • SC3: sustained file transfer simultaneously to 6 Tier-1 sites. Disk to tape (at 60 MByte/sec) using SRM. Participating sites: CCIN2P3, CNAF, Fermilab, FZK, RAL, SARA. Date: July 2005. http://lcg.web.cern.ch/LCG/PEB/gdb/ServiceChallenges.htm

  6. Data Challenges • SC4: sustained file transfer simultaneously to all 10 Tier-1 and some Tier-2 sites. Inclusion of data processing on farms at CERN and at the Tier-1 sites. Date: Q4 2005 • SC5: the whole infrastructure of Tier-1 and Tier-2 sites in place. Simulated data movements between all partners. Date: Q1 2006 • SC6: test of the whole infrastructure at twice the nominal rate. Date: Q2 2006 • SC7: test of the whole infrastructure with real (cosmic) data from the experiments http://lcg.web.cern.ch/LCG/PEB/gdb/ServiceChallenges.htm

  7. ATLAS Tier 2 Sites BNL • University of Texas at Arlington • University of Oklahoma • University of New Mexico • Langston University • University of Chicago • Indiana University • Boston University • Harvard University • University of Michigan http://lcg.web.cern.ch/LCG/PEB/gdb/LCG-Tiers.htm

  8. CMS Tier 2 Sites FERMI • MIT • University of Florida, Gainesville • University of Nebraska, Lincoln • University of Wisconsin, Madison • Caltech • Purdue University • University of California, San Diego http://lcg.web.cern.ch/LCG/PEB/gdb/LCG-Tiers.htm

  9. ATLAS Tier 2 Sites TRIUMF • University of Victoria • WestGrid • University of Alberta • University of Toronto • Carleton University • University de Monreal http://lcg.web.cern.ch/LCG/PEB/gdb/LCG-Tiers.htm

  10. Data Challenge Survey • Sent to Network contacts at Universities • Questions • Expected 05 Data Rates for long flows • Expected 06 Data Rates for long flows • Upstream Provider • Light Paths • Contact Info

  11. ATLAS Tier 2 Sites BNL

  12. CMS Tier 2 Sites FERMI

  13. Tier 2 Light Path Plans • U Texas • No • U Chicago • Initially not, though we do have capabilities to do so. At UC, we connect to Starlight via optical links provided by I-WIRE. • Indiana U. • Initially not, though we do have capabilities to do so. • Caltech • We'll experiment on-demand network path setup dynamically using Monalisa service agents and GMPLS. • U Michigan • We are an UltraLight collaborating site and will utilize dedicated light-paths, QoS/MPLS and high-performance protocols (like FAST) to do our Service Challenge work.

  14. Summary Synopsis of LHC Tier 2 Networking Web Page Mailing list to discuss US LHC networking. lhc-us-net@es.net Send message to listserver@listmin.es.net with a subject of “subscribe lhc-us-net”

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