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Grid Applications for High Energy Physics and Interoperability

Centre de Calcul de l’IN2P3 et du DAPNIA. Grid Applications for High Energy Physics and Interoperability. Dominique Boutigny CC-IN2P3 June 24, 2006. IFIC. MSU. Lab m. Tier-3. Univ. x. RAL/UK. IC. BNL/US. USA Brookhaven. IFCA. Lab c. UK. Lab a. UB. LAPP. USA FermiLab. CNAF/IT.

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Grid Applications for High Energy Physics and Interoperability

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  1. Centre de Calcul de l’IN2P3 et du DAPNIA Grid Applications for High Energy Physics and Interoperability Dominique Boutigny CC-IN2P3 June 24, 2006

  2. IFIC MSU Lab m Tier-3 Univ. x RAL/UK IC BNL/US USA Brookhaven IFCA Lab c UK Lab a UB LAPP USA FermiLab CNAF/IT Tier-2 Univ. n France Cambridge Lab e France Lab d France Tier1 1 CERN GridKa/DE GRIF Japon CPPM Italy IN2P3-LPC CCIN2P3/FR Allemagne Hollande IN2P3-Subatech Tier-0 Lab b Lab c PIC/SP Labo X CSCS Tier-1 Univ. b Univ. y Taipei Desktop/ portables TRIUMF/CA Canada SARA/NL ASCC/Taipei Rome CIEMAT Krakow USC LHC Experiments  15 PByte of data / year A computing Grid architecture at the world level is mandatory to process them W-LCG Grid infrastructure

  3. Framework • Grid activities at IN2P3 are mainly related to LHC computing • Deeply involved in the EGEE project • Grid Operation  ~10 engineers involved at CC-IN2P3 • Network • The main goal is to setup a Tier-1 node at CC-IN2P3 for the worldwide grid W-LCG for physics oriented production • LHC will be starting in 2007, the Grid infrastructure should be up and running by that time. • Experiencing the Grid through Service and Data challenges • Ramping up, step by step, the data throughput and the number of jobs up to the LHC nominal value

  4. Network monitoring – Ouput from CERN 1.6 GB/s Network monitoring – Input to CC-IN2P3 250 MB/s Optical network connection to CERN : 10 Gbps

  5. W-LCG = EGEE (gLite) + OSG (+ Nordic) • Need to interoperate both Grids • At the job level • Some level of interoperability has been reached for LCG 2 / OSG interoperability • Still some work to do, especially for gLite / OSG interoperation. • Not clear how interoperation is working at the level of the data catalog • At the Operation level • Work is just starting • Crucial in the context of LHC computing

  6. IT / CC-IN2P3 relationships • ANR: 3 year project: CC-IN2P3 – LIP (RESO) – RENATER + FNAL (Chicago) • 2-fold: • OSG / EGEE interoperability (CC-IN2P3) • High bandwidth network transfers (LIP) • Understand data transfer patterns on a long distance network and with data from real applications • Optimize data transfers • Will get a 2×1 Gbps dedicated link between Chicago and CC-IN2P3 (RENATER) • Hope to have it upgraded up to 10 Gbps before the end of the project • Project started since 3-4 month – Quite some infrastructure to setup before actual work could begin

  7. CC-IN2P3 and W-LCG grid • Large infrastructure with operational support • Provide real applications involving a huge amount of data • Computer Science: • Develop Grid software from a more fundamental point of view • Are able to handle workflow, bottlenecks, data access, networks etc… without the pressure of HEP data to analyze • I am convinced that both world could benefit from each other and that next generation of HEP operational Grids will come from the IT world.

  8. France / Japan relationship • 2 computing projects within the Associated International Laboratory (AIL) • 1 focused on LHC Computing • 1 focused on interoperability between NAREGI and EGEE • Large overlap with NEGST • Close relationship between Tokyo University and CC-IN2P3 related to ATLAS experiment. • Wish to connect the Tokyo Tier-2 (ICEPP) to CC-IN2P3 Tier-1 • Data exchange between both sites • Strong interest to develop relationships in view of the future International Linear Colider project where France and Japan have common interest

  9. SRB • The Storage Resource Broker and its successor: RODS is also a subject of common interest (developed at SDSC) • SRB is a distributed file catalog with a sophisticated Metadata management system. • Data distribution / replication is very efficient (heavily used in the BaBar experiment between Stanford and Lyon) • SRB is not part of EGEE / OSG • KEK Japanese colleagues are working on SRB / EGEE interoperation • CC-IN2P3 is very interested to join this effort • Recent interoperability test between several SRB server federations located in Japan, New-Zealand, USA, France, Italy, UK, Australia. • Performances were very good and worldwide SRB configuration was especially easy to setup

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