Bandwidth requirement from Applications using APII (Korea-Japan-USA)

1. Bandwidth requirement from Applications using APII (Korea-Japan-USA) Center for High Energy Physics Kyungpook National University Youngdo Oh*, Dongchul Son Korea-Kyushu Gigabit Network Meeting in Oita Oct. 4/5 , 2002

2. Contents • Activities on Korean High Energy Physics • Korean HEP Roadmap • Bandwidth requirement • Korea-Japan Collaboration • Belle, K2K experiments at KEK and Kamioka • Bandwidth requirement if Korean-Japan-US connection is available over Hyeonhai/Genkai • CDF Experiment at Fermilab in USA • Korea-USA requirement for the CMS Experiment • Suggestions

3. Activities on Korean High Energy Physics

4. The Belle Experiment at KEK (Japan) • 10GeV positron-electron Colliding Experiment • Data Taking/Analysis in progress • Goals • CP violation in B-Meson System • Tests of Standard Model • Study of Heavy Quark system (b & c)

5. The Belle Collaboration ~300 researchers from 53 institutes • Aomori Univ. • Budker Inst. of Nucl. Physics • Chiba Univ. • Chuo Univ. • Univ. of Cincinnati • Univ. of Frankfurt • Gyeongsang Nat'l Univ. • Univ. of Hawaii • Hiroshima Inst. of Tech. • Hiroshima Coll. of Maritime Tech. • Inst of Cosmic Ray Res., U of Tokyo • IHEP, Beijing • ITEP, Moscow • Joint Crystal Collab. Group • Kanagawa Univ. • KEK • Korea Univ. • Krakow Inst. of Nucl. Physics • Kyoto Univ. • Kyungpook Nat'l Univ, (CHEP). • Univ. of Melbourne. • Nagasaki Inst. of Applied Science • Nagaya Univ. • Nara Woman's Univ • Nat'l Central Univ. • Nat'l Kaoshiung Univ • Nat'l Lien-Ho Coll. of Tech. • Nat'l Taiwan Univ. • H. Nievodniczanski Inst of Nucl. Phys., Krakow • Nihon Dental Coll. • Niigata Univ. • Osaka Univ. • Osaka City Univ. • Panjab Univ. • Saga Univ. • Seoul Nat'l Univ. • Univ. of Sci. and Tech. of China • Sugiyama Woman's Coll. • Sunkyunkwan Univ. • Univ. of Sydney • Toho Univ. • Tohoku Univ. • Tohoku-gakuin Univ. • Univ. of Tokyo • Tokyo Inst. of Tech. • Tokyo Metropolitan Univ. • Tokyo Univ. of Agriculture and Tech. • Toyama Nat'l Coll. of Maritime Tech. • Univ. of Tsukuba • Utkal Univ. • Virginia Polytechnic Inst (VPI) • Yokkkaichi Univ. • Yonsei Univ.

6. K2K Experiment (Japan) • K2K (from KEK to Kamioka) Started in March 3, 1999 • Long baseline Neutrino Oscillation Experiment: ~ 100 physicists from USA, Japan, Korea • Korean Universities : CHEP(SNU, Chonnam NU) and Dongshin U • Production of muon neutrion at KEK and Detection at Super-K Detector • Data Taking and Analysis in Progress • Goals • Neutrino oscillation and massiveness of muon neturinos 250 km

7. CDF Experiment at Fermilab (USA) • 2 TeV proton- antiproton collisons • Data Taking/Analysis in progress • Goals • Discovery of Higgs particles • Tests of Standard Model • Heavy Quarks system (top and bottom quarks • Korean Collaborators • Kyungpook NU • Seoul NU • Seongkyunkwan U

8. HEP Roadmap (Korea) 20 present 00 01 02 03 04 05 06 07 08 09 10 11 Current on-going international Collaboratory Experiments that are taking and analyzing data Belle Exp at KEK in Japna Continuation of Belle And/Or Detector Data Taking/Analysis, Detector Upgrade Detector Maintenance (Korean Contribution in EM Caloriment, Trigger, Data Analysis) Linear Collider Project CDF Exp at Fermilab in USA Detector Data Taking/Analysis, Detector Upgrade Detector Maintenance (Korean Contribution in TOF detector, Data Analysis) CERN LHC/CMS Experiment K2K Expe –at KEK and Kamioka in Japan AMS Experiment at ISS Detector Data Taking/Analysis, Detector Upgrade and Maintenance, (Korea Contributions in SciFi and others, Mantenance, Data Analysis)

9. 20 present 00 01 02 03 04 05 06 07 08 09 10 11 AMS Exp The first HEP Experiment at the International Space Station(ISS)  13 countries: USA, Germany, Switzerland, Italy, France, Korea, China, Taiwan, etc. CERN (’02.1) Local Laboratory for CHEP Stage 1(’97-’00) AMS01 on Discovery , Dataking(’98.6) Retrieving Detector Or refilling Helium and continuation 2005.7 AMS02 at the ISS via Endeavor Stage 2(’01-’04) AMS02 Detector Korea Contribution: - Superconducting Magnet R/D - TRD Electornics/SW - R/D on Slow Control - Regional Data Center Stage 3 (’04-’05) AMS02 Detector Test -Reginal Data Center Stage 4(’06-’10) AMS02 on ISS Data Taking - Data Analysis at the Rigional Data Center Stage 5 (‘10-) Continue ISS experiment • LHC/CMS • at CERN • 32 countries Stage 1(’97-’98) Korean Contribution: Barrel RPC R/D Stage 2(’99-’02) Korean Contribution: Forward RPC R/D Power Supply R/D Trigger(Optical Link) R/D 2006.8 LHC /CMS Commissioning • Stage 3(’01-’06) • Forward RPC Fabrication • Powe Supply Fabrication • Trigger(optical links) • On-line Processor Farm • Preparation for Data Analysis • Regional Data Center in Korea Stage 4(’06- 10’s) Operation Maintenace on RPC Data Ataking and Analysis - Next Generation Linear Collider Project Global Science Hosted Two International Conference LINAC2002, LCWS2002 in Korea (2002.8) Expect Commissioning sometime in 2010~15 • Stage 1(’95-’02) • - JLC (Acc./Detector) • Conceptual Design/ R/D • R/Ds on Modulator , Polarized Electron Source, Intermediate Silicon Tracker • Participation in HEP Consultative Group at OECD-GSF, ICFA, ACFA • Stage 2 • (’02-’03) • Intergovernmental Discussion • R/D Stage 3 (’04-’06) - Modulator R/D - PES R/D - Detector R/D Stage 4’06- ‘10) - Fabrication and Supply of Acc. And Detector Parts Host the LC Project in Korea ?

10. 1. CMS Tier-1 Regional Center (CERN) 4. Belle Exp (Japan) Konkuk U CHEP Kyungpook N U Participation of Institutions in the HEP Data Grid Project Gyeoogsang N U Korea U 2. AMS Regional Center (CERN) Seoul N U 5. K2K Exp (Japan) Seonkyunkwan U Chonnam N U Ewha W U Yonsei U Dongshin U 6. PHENIX Grid (USA) 3. CDF Grid (USA) KBSI Data Grid Cluster … Other users Center for High Energy Physics ( C H E P ) Kyungpook National University Daegu, Korea • Established in July 1, 2000. • A national center designated by the Korean Ministry of Science and Technology and supported by the Korean Science and Engineering Foundation (KOSEF) • 47 HEP physicists with doctoral degrees and 120 graduate students from 12 universities inside Korea. • Major research activities: • CMS at CERN • AMS at ISS based at CERN • Belle/K2K in Japan • CDF/Phenix in USA

11. Korea-Japan (alone) Bandwidth Requirement • KEK Experiments • 130~370 Mbps by 2006 • 650 Mbps after 2006 • Korea-Japan-USA Connection (additional) • Fermilab CDF Exp. (40~230 Mbps) • CMS Exp (800 Mbps) • Total bandwidth requirement: • 1.2~1.6 Gbps • Total of minimal 2.4 Gbps is required • Considering other traffic, we need 10 Gbps Bandwidth requirement TEIN GEANT-Renater2-(2.5~10 Gbps)-KOREN (CERN) • TEIN Bandwidth requirement • From CERN 100 MB/s experimental data trasfer • 24 hrs/day, 10 million seconds/year operation • Data Size =1 PetaBytes/y • MC data production(2 PB/y) and transfer to Europe and USA • Therefore we need 2.4 Gbps • 800 Mbps (Exp Data) • 1600 Mbps (MC Data) • Considering other traffic, we need 10 Gbps. 20 Gbps 2.520 Gbps 2.520 Gbps Hyeonhai/APII 2.5 ~ 10 Gbps (KEK, Fermilab ) KOREN Topology

12. Traffic/Data for HEP experiments carried out in Japan • Belle Experiment • At present, data of 30 Tbytes/year are being collected: 0.3 TB/day • It is approxmately 5~15 Mbytes/s, meaning 40 ~120 Mbps • Production and share of Monte Carlo simulated data (~3 times of real data) among Korea-Japan collaborators (file transfer) • Therefore, 120 Mbps~360 Mbps is needed (24 hrs/day operation, 25 millions seconds in total operation per year) • After 2006, we expect collecting data at 220GHz amounting 2 PB data/year • Koreans expect processing 30% of data (600 TB/year)  4800 Tb/30 Ms = 160 Mbps • Monte Carlo data production and share with Japan (approx 1.8 PB/year)  480 Mbps • Therefore, we need 640 Mbps between Japan-Korea for this experiment • K2K Experiment • Until 2001, we have approx. 830 GB of unprocessed data • Processed data size is 3.1 TB • Expect the same size of data in 2003 • Monte Carlo Simulation Data is about 1.6TB • We need 2~3 Mbps • SuperKamiokande(Super-K) Experiment (Kamioka-near Toyama) • Collects approx. 27 Gbytes of data, needs 8*27 Gb/86.4 ks = 2.2 Mbps • About the same size of Monte Carlo data are produced • We need 5~6 Mbps

13. Bandwidth Requirements Korea-Japan-USA • Summary for Korea-Japan connection • 130~370 Mbps by 2006 • 650 Mbps after 2006 • When Genkai is extended to USA via Korea-Japan • CDF Experiment at Fermilab • Run IIa(2001.3 - 2004) and Run IIb(after 2004 ) • 500 Tbytes/year are produced (Run Iia), > 3 Pbytes (after 2004) • Before 2004 : 10% processing (50 TBytes/year) : ~ 13 Mbps • After 2004 : 10% processing (300 TBytes/year) : ~ 76 Mbps • Monte Carlo Data Production and Transfer: twice the above • Before 2004 : 40 Mbps • After 2004 : 230 Mbps • Data Transfer for CMS (Europe) • Monte Carlo Data Production and share with USA CMS Collaborators • 15 years from 2003, we share 1 Petabytes/year = 800 Mbps is needed • Summary of Bandwidth requirement Year 2003 2004 2006 Between Korea-Japan 1200 1400 1650 Mbps Between Japan-USA 840 1030 1030 Mbps (for Korean traffic)

14. Suggestions • Minimal bandwidth requirements for the HEP research is • 2.5 Gbps over Korea-Japan-USA • Suggest that if we use the Busan-Kyushu line for Korea-USA APII, we need the network to be 2.5 Gbps initially and then 10 Gbps at least reflecting other usage in near future.