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Data GRID Activity in Japan

Data GRID Activity in Japan. Yoshiyuki WATASE KEK (High energy Accelerator Research Organization) Tsukuba, Japan Yoshiyuki.Watase@kek.jp. Contents. Network Infrastructure Application candidates of Data GRID High Energy Physics in Japan R&D in Data GRID Collaboration on Data GRID

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Data GRID Activity in Japan

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  1. Data GRID Activity in Japan Yoshiyuki WATASE KEK (High energy Accelerator Research Organization) Tsukuba, Japan Yoshiyuki.Watase@kek.jp

  2. Contents • Network Infrastructure • Application candidates of Data GRID • High Energy Physics in Japan • R&D in Data GRID • Collaboration on Data GRID • Conclusion

  3. Network Infrastructure • The new implementation of the photonic network for Japanese Academic Network: SuperSINET was approved in this FY2001 and will be operated by NII: National Institute of Informatics. • Five research areas have been defined as strategic user groups. • High Energy Physics and Fusion Science • Astronomy and Space Science • Nano Technology • GRID Computing • Bio informatics • NII organizes coordination groups of the above areas. • HEP, Fusion, Astronomy and Space Science are potential users of Data GRID environment.

  4. SuperSINETPhotonic network with OXC Internet 10Gbps WDM path : GbE NIFS KEK Tohoku U IP router (or Layer3 SW ) North Kanto Hub Nagoya U NIG OXC Nagoya Hub Osaka Hub Tokyo Hub US and Europe Osaka U NII Chiba Kyoto U NII Hitotsubashi ICR Kyoto-U ISAS U Tokyo End node services: 10Gbps IP Backbone peer-to-peer GbE links Internet IMS NAO U-Tokyo

  5. Application candidates ofData GRID • Astronomy and Space Science • Radio Astronomical Observation with Realtime VLBI ….on going • Radio Telescope Array at Chile: ALMA(Atacama Large Millimeter/Submillimeter Array) …...2010 • HEP Application • KEKB/Belle experiment ….on going • LHC/Atlas experiment …..2006

  6. Radio Telescope Array: ALMA International Joint Project Europe, Japan and North America Prepare for Joint Construction of the Giant Radio Telescope "ALMA" at Atacama desert in Chile. 12 m Telescope x 64 in 14 km2 Distributed data analysis is required.

  7. High Energy Physics • KEKB/BELLE • KEKB is the e+ e- collision (3.5 GeV + 8 GeV) experiment to search for CP violation Similar to SLAC/BaBar experiment • Data generated per day = ~ 0.5 TB/day • Sharing data analysis load between KEK and universities: Tokyo, Nagoya, and Osaka. • Resources at KEK: CPU 12,000 SPECint95 Storage 650 TB (tape), 10 TB(disk) BELLE: http://bsunsrv1.kek.jp/

  8. K,p,g,e,... e- e+ BB B Factory Experiments BELLE Positron Electron KEK GbE OXC Osaka GbE GbE Tokyo Nagoya

  9. High Energy Physics • LHC/ATLAS • Japan is a member of ATLAS group • Experiment starts in 2006 • Tier 1 Regional Center at Univ. of Tokyo • Typical Tier 1 Center would have • 200,000 SPECint95 • Storage ( 1/3 of Event Summary Data ) Disk 500TB + Tape 250 TB = Total ~1 PB

  10. SuperSINET (1 - 10 Gbps) Server/ Switch Server/ Switch i-SCSI R&D for Data GRID • Bulk Data/File transfer over gigabit network • “Data Reservoir”... U. Tokyo +Fujitsu • Buffered parallel trans • Data transfer protocol i-SCSI • WAN Emulator … KEK • Long Fat Network emulator with variable latency • Scalable file system: DAFS (Direct Access File System) ~ TB

  11. R&D for Data GRID Gfarm(Grid Datafarm): AIST, TITECH, KEK 1. PC farm with large local disks 2. Gfarm Filesystem: Prallel file system with Meta Database 3. Large data file is divided and stored into the local disk in parallel by Gfarm parallel I/O API.

  12. Collaboration on Data GRID • Possible Testbed systems for Data GRID • KEK, TITECH, Univ.Tokyo, AIST • resources and network • KEK ~100 CPU + Storage: Local disk +HPSS • TITECH ~ 500 CPU funded by JSPS ( $1.2 M) • Tokyo ~ 50 CPU • Collaboration with LHC Data GRID • iVDGL • AIST and TITECH cooperate with iVDGLAIST: Nat’l Inst. of Advanced Industrial Science and Technology(Tsukuba) TITECH: Tokyo Institute of Technology(Tokyo)

  13. Collaboration on Data DRID • ATLAS Data Challenge (DC) • Demonstration of distributed data analysis • DC 0 2001 local test • DC 1 Feb. - Jul. 2002 ~1000 PC’s test: CERN + RC’s • DC 2 Spring - Autumn 2003 “1/2 scale” test : CERN + All RC • International network connections • NII will provide links to US. (planning ~ Gbps in 2003)

  14. Conclusions • Data GRID has broad application area in scientific research. • World wide high speed network is essential to our success. • Standardization of GRID middleware is crucial. • R&D are in progress by HEP and CS. • Collaborate with other Data GRID activities • Recent Target is Atlas Data Challenge.

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