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HEP Data Grid in Japan

HEP Data Grid in Japan. Takashi Sasaki Computing Research Center KEK. Contents. Japanese HENP projects Belle GRID ATLAS-Japan Regional Center Collaboration in Asia Pacific. Major HENP projects in Japan. KEK Proton Synchrotron K2K etc. KEKB BELLE experiment

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HEP Data Grid in Japan

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  1. HEP Data Grid in Japan Takashi Sasaki Computing Research Center KEK

  2. Contents • Japanese HENP projects • Belle GRID • ATLAS-Japan Regional Center • Collaboration in Asia Pacific Takashi.Sasaki@kek.jp

  3. Major HENP projects in Japan • KEK Proton Synchrotron • K2K etc. • KEKB • BELLE experiment • 300 members from 54 institutes in10 countries • Super-B is planning • J-PARC • New facility under construction at Tokai (~2008)  • particle physics, material science and life science • T2K • International collaboration • LHC ATLAS, CERN • HERA ZEUS, DESY • RHIC, BNL • etc. Takashi.Sasaki@kek.jp

  4. KEK-B Belle Experiment Takashi.Sasaki@kek.jp

  5. 1km Takashi.Sasaki@kek.jp

  6. Belle Data • 15MB/sec data rate in maximum • 200TB/year raw data recorded • Equivalent number of Monte Carlo events Takashi.Sasaki@kek.jp

  7. Belle PC farms Takashi.Sasaki@kek.jp

  8. Super KEK-B • L = 10^35cm^-2s^-1 in 2007? • Data rate ~ 250MB/s Takashi.Sasaki@kek.jp

  9. K2K now upgrading to T2K Takashi.Sasaki@kek.jp

  10. T2K (Tokai to Kamioka) • J-PARC • for particles physics, material and life science • joint project of JAERI and KEK • 100 times intense neutrino beam • High trigger rate at the near detector • Operational in 2007 Takashi.Sasaki@kek.jp

  11. LHC-ATLAS • Japanese contribution • Semiconductor Tracker • Endcap Muon Trigger System • Muon Readout Electronics • Superconducting Solenoid • DAQ system • Regional Analysis Facility • ICEPP will the site of the regional center Takashi.Sasaki@kek.jp

  12. HEP GRID related activities • Networking • domestic/international • BELLE • data distribution and remote MC production • ALTAS Japan • collaboration between ICEPPand KEK • Hadron therapy simulation • application of HEP tools into medical field Takashi.Sasaki@kek.jp

  13. SuperSInet Major HEP sites have a DWDM connection to KEK with 1Gbps Takashi.Sasaki@kek.jp

  14. To Novosibirsk Russia 0.5 M USA SuperSINET Chicago Tsukuba WAN 5 G -> 10G TransPAC Korea NY APII 1G SuperSINET China 10 G CERNET 155 M Hawaii 155M APAN Current Network Connections around Japan ASNET/TANET2 622 M SINET2M Taiwan Thailand Takashi.Sasaki@kek.jp As of July 2004

  15. BELLE GRID • Distributed analysis and data sharing among institutes • Experimental data distribution to remote sites • Monte Carlo production at remote sites and send back events to KEK • remote job submission • etc • Testing SRB with GSI now • among Australia, Taiwan and KEK • hopefully Korea, soon Takashi.Sasaki@kek.jp

  16. Why SRB? • Easy to install, use and manage • Most of Belle’s collaborating institutes are middle or small size universities • poor in man power • Useful features • file replication • parallel data transfer • Grid aware: GSI authentication • Command line interface, API, GUI • Fancy Web interface • etc • Excellent user support • quick response • seminars • Available today! • Solution is needed for Belle Takashi.Sasaki@kek.jp

  17. SRB(Storage Resource Broker) SRB client SRB client Internet Zone SRB server SRB server SRB server SRB server tape RAID disk nfs DB MCAT Takashi.Sasaki@kek.jp

  18. SRB zone federation disk DB MCAT ZoneB SRB server SRB server SRB server Internet SRB server SRB server SRB server SRB server ZoneA tape RAID disk nfs DB MCAT Takashi.Sasaki@kek.jp

  19. SRB Command line interface Takashi.Sasaki@kek.jp

  20. SRB test bed system Australia KEK DMZ ZONE:gtsrb13 Internet store Fire Wall gtdmz01 ZONE:kekgt15 BELLE Secure net MCAT NFS (Belle data) bcs20 MCAT PostgreSQL client BELLE Computer system ZONE:anusf RAID 800GB MCAT DB2 gt15 gt13 federation MCAT PostgreSQL gl03 gl01 HPSS 120TB ZONE:glsrb01 Takashi.Sasaki@kek.jp

  21. Status • Zone federation between ANU and KEK has been established • ANU, University of Melbourne and University of Sydney are collaborating for BELLE/ATLAS Grid issue • One MCAT running at ANU • Data can store/retrieve on Belle data system and also HPSS in KEK side • Zone federation between Academia Sinica, Taiwan and KEK has been established • still need to solve some problems Takashi.Sasaki@kek.jp

  22. BELLE GRID Future plan • Participation of Korean sites • Mutual job submission using Globus • LCG2+SRB (if they wish) • LCG2 is under testing at KEK also with help of ICEPP. • Because many foreign institutes are working both for BELLE and one of LHC experiments, they want to use LCG rather than vanilla Globus • baby “tier-0” at KEK and “tier-1” at ICEPP • SRB and LCG-RLS synchronization will be tried based on Simon Matson’s (Bristol, CMS) work Takashi.Sasaki@kek.jp

  23. Grid in ATLAS Japan • Regional analysis center for ATLAS • ICEPP, the University of Tokyo • Joint collaboration between ICEPP and KEK for Grid deployment Takashi.Sasaki@kek.jp

  24. LCG MW Deployment in Japan • RC Pilot Model System@ICEPP • Since 2002 • LCG testbed. Now LCG2_1_1 • LCG2 test bed@KEK • baby tier-0 • LCG2_1_1 • Regional Center Facility • Will be introduced in JFY2006 • Aiming “Tier1” size resource Takashi.Sasaki@kek.jp

  25. Takashi.Sasaki@kek.jp

  26. SuperSInet Performance Measurement “A” setting TCP 479Mbps -P 1 -t 1200 -w 128KBTCP 925Mbps -P 2 -t 1200 -w 128KBTCP 931Mbps -P 4 -t 1200 -w 128KBUDP 953Mbps -b 1000MB -t 1200 -w 128KB “B” setting (longer window size) TCP 922Mbps -P 1 -t 1200 -w 4096KBUDP 954Mbps -b 1000MB -t 1200 -w 4096KB DWDM "A" setting: 104.9MB/s "B" setting: 110.2MB/s Takashi.Sasaki@kek.jp

  27. NorduGrid - grid-manager - gridftp-server Globus-mds Globus-replica PBS server NorduGrid - grid-manager - gridftp-server Globus-mds PBS server 1Gbps 100Mbps GRID testbed environmentwith HPSS through GbE-WAN HPSS servers ICEPP KEK SE HPSS 120TB CE SE ~ 60km 0.2TB CE 6CPUs CE 100 CPUs PBS clients PBS clients User PCs Takashi.Sasaki@kek.jp

  28. Pftp→pftp HPSS mover disk Client disk 80 Even 3ms latency affects on results 60 to/dev/null Aggregate Transfer speed (MB/s) KEK client (LAN) 40 ICEPP client(WAN) 20 Ftp buffer=64MB to clientdisk Client disk speed @ KEK = 48MB/s Client disk speed @ ICEPP=33MB/s 0 0 2 4 6 8 10 # of file transfer in parallel Takashi.Sasaki@kek.jp

  29. microscopic monitoring on network performance w/ packet loss w/o packet loss • speed=increment of sum of TCP data size in every 10ms • window size grows slowly after packet losss • longer windows is not perfect when you have packet loss Takashi.Sasaki@kek.jp

  30. FAST • http://netlab.caltech.edu/FAST/ • Looks nice and we want to try, but we haven’t because of the patent and IP issue. • Some people at KEK afraid that they might have a difficulty to work in the similar topic once they see the source code of it. • Is this true? Takashi.Sasaki@kek.jp

  31. CA • A key issue of GRID • ICEPP and KEK will run one CA jointly for BELLE and ATLAS • only for active KEK users to simplify the procedure • current situation • ICEPP depends on a foreign CA to join LCG • KEK is running a test CA locally • CA management costs are not cheap. Any good idea? Takashi.Sasaki@kek.jp

  32. Storage evaluation • SAN solutions • IBM SANfile (aka. StorageTank) • Linux+AIX in server side • tested AIX, Solaris and Linux clients • Linux clients were fastest in our tests • HP Lustre • waiting for beta product delivery Takashi.Sasaki@kek.jp

  33. Distributed simulation in advanced radio therapy • A model on hospitals and computer centers • Hospitals send CT, MRI or PET images (DICOM) with treatment planning data to a computing center as input • higher security is required to protect personal data • Full simulation using Geant4 at computing centers • parallel simulation • Analysis results and feedbacks in DICOM to hospitals • Validation of treatment planning Takashi.Sasaki@kek.jp

  34. Toward Asia-Pacific collaboration • Taka an advantage on working together with people in neighboring time zones • HEP population in Asia-Pacific • ATLAS • Australia(7), China(15), Japan(45) and Taiwan(5) • 72/1446 = 5.0% • CMS • China(31), Korea(17) and Taiwan(14) • 62/1676 = 3.7% • Alice • China(20), Japan(3) and Korea(12) • 35/747 = 4.7% • LHC-b • China(19) • 19/737 = 2.6% • Belle • Australia(8),China(11),Japan(122),Korea(15) and Taiwan(13) • 169/246 = 67% (excluding Japan 20%) Takashi.Sasaki@kek.jp

  35. Takashi.Sasaki@kek.jp

  36. Summary • Japan is an unique country in Asia-Pacific region which have large accelerators for HENP • should have a “tier-0” center • SRB is under testing for BELLE • ICEPP, U-Tokyo and KEK are collaborating together to build the ATLAS regional center in Japan • We seek a collaboration among Asia-Pacific countries • BELLE, LHC • More bandwidth is necessary among sites Takashi.Sasaki@kek.jp

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