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Networks for participating in HEP experiments from Korea APAN High Energy Physics Workshop 2003 Networks for participating in HEP experiments from Korea APAN High Energy Physics Workshop 2003 January 21 Youngdo Oh, Dongchul Son Center for High Energy Physics Kyungpook Nat’l Univ. , Daegu, Korea

Contents q High Energy Physics in Korea CHEP(Center for high energy physics) Korean HEP Contents q High Energy Physics in Korea CHEP(Center for high energy physics) Korean HEP Data Grid q Korean Network Status KOREN/KREONET : Present and future APII/TEIN q Summary

CHEP - Center for High Energy Physics q A national center of excellence (Science CHEP - Center for High Energy Physics q A national center of excellence (Science Research Center: SRC) designated by the Korean MOST and supported by the KOSEF q The only Center of its kind in Korea: Most HE physicists and students are participating to the Center and are supported by the CHEP q Major research activities include o o o CMS at CERN AMS at International Space Station (ISS) Belle/K 2 K at KEK in Japan CDF/Phenix in USA HEP Data Grid for all of the above experiments

Korean HEP now and future q Large-scale enterprise experiments to which Koreans are committed Korean HEP now and future q Large-scale enterprise experiments to which Koreans are committed now and in the future o o Belle / KEK – Japan : in progress K 2 K / KEK – Japan : in progress CDF / Fermilab (USA) : in progress AMS / ISS (MIT, NASA, CERN) : data taking starts in 2005 o CMS (CERN, Europe) : data taking starts in 2007 o Linear Collider Exp (either in Asia, Europe or USA) : around 2009

HEP Data Grid Development q Final goal of the Korean HEP Data Grid is HEP Data Grid Development q Final goal of the Korean HEP Data Grid is the Tier-1 Regional Data Center of LHC-CMS experiment in Asia and this can be also used as regional data center for many other experiments (Belle, CDF, AMS, etc. ) q Korean HEP Data Grid Working Group was formed under the auspices of the Grid Forum Korea (GFK) in October 2001 q A proposal of the Korean HEP Data Grid has been submitted to the Ministry of Information and Communication March 16, 2002 q It is approved by KISTI / MIC on March 22, 2002 and in progress now o 210 Mwons(ca. US$168 k) in 2002 q National Computerization Agency (NCA) supports CHEP with two international networking utilization projects for HEP both of which are related to HEP Data Grid : Europe and Japan/USA o 287 Mwons total (ca. US$230 k) in 2002

HEP Data Grid Development q KNU and SNU host one EDG testbed each and HEP Data Grid Development q KNU and SNU host one EDG testbed each and are running at a fundamental level (July 2002) o Application of the EDG testbed to currently running experiments: Configuration § EDG testbed for CDF data analysis § EDG testbed for K 2 K data analysis § EDG testbed for CMS data analysis q CHEP is discussing with i. VDGL collaboration (since August 2002) o CHEP will set up a CMS MC production testbed soon (Under the CMS Project named Data Challenge 2003)

Participation of Institutions in the HEP Data Grid Project 1. CMS Tier-1 Regional Center Participation of Institutions in the HEP Data Grid Project 1. CMS Tier-1 Regional Center (CERN) 4. Belle Exp (Japan) Konkuk U CHEP Kyungpook N U Gyeoogsang N U Korea U 2. AMS Regional Center (CERN) Seoul N U 5. K 2 K Exp (Japan) Seongkyunkwan U Chonnam N U Ewha W U Yonsei U 3. CDF Grid. KCAF (USA) Dongshin U KBSI … Other users Data Grid Cluster 6. PHENIX Grid (USA)

Distributed Resources (2002) SNU 6 CPUs Ewha WU 1 CPU Konkuk U 1 CPU Distributed Resources (2002) SNU 6 CPUs Ewha WU 1 CPU Konkuk U 1 CPU Yonsei 1 CPU SKKU 1 CPU Seoul 45 Mbps APII TEIN … CERN Korean 10 Mbps 1 CPU 8 Mbps Japan KEK XP Suwon KOREN/NOC 64 CPUs Daejeon XP : KOREN Backbone Gwangju XP Chonnam 1 CPU US Fermilab Korean CDF 10 CPUs Korean Belle 12 CPUs Daegu XP CHEP 142 CPUs ~50 TB Storage Busan XP KREONET KORNET Dongshin

SNU EDG Testbed CHEP/KNU Storage and network equipment SNU EDG Testbed CHEP/KNU Storage and network equipment

Korean Networks q Domestic Infrastructure – KOREN – KREONET q International R&D Networks – Korean Networks q Domestic Infrastructure – KOREN – KREONET q International R&D Networks – APII/TEIN

KOREN q Korea Advanced Research Network q A non-profit advanced research network q Funded KOREN q Korea Advanced Research Network q A non-profit advanced research network q Funded by MIC (Ministry of Information and Communication) and KT since 1995 q To provide high-performance networking services q To supports the R&D activity of new technology and applications q 6+1 router nodes across the nation based upon ATM technology with advanced services deployed q 37 member Institutes

History of KOREN q 1 st Phase (’ 95~’ 97): ATM Service o Launched History of KOREN q 1 st Phase (’ 95~’ 97): ATM Service o Launched KOREN (95) o Built optical backbone between Seoul and Daejeon q 2 nd Phase (’ 98~2001): IP Service over ATM o Opened the Network Operation Center (NOC) o Interface with APII Testbed: JP/SG/US § Deployed 6 Giga. Po. P § Interfaced with other domestic R&D networks § (HPCNet/KREONET 2 (NOC: KISTI) q 3 rd Phase (2002~2005): Optical Internet based on DWDM o Backbone : Tens of Giga bps o Access network : several Giga bps

KREONET q Research Network formerly supported by the MOST, now by MIC and operated KREONET q Research Network formerly supported by the MOST, now by MIC and operated by KISTI q Members: ~200 institutions (mostly by 45 Mbps) q Major research institutions (universities and research institutes) are networked q Own the APII link to US (45 Mbps) q And its own links to Japan (imnet) and other countries

KREONET q. Future Plan (2003) o APII link to US(Star. Tap): upgrade to 310 KREONET q. Future Plan (2003) o APII link to US(Star. Tap): upgrade to 310 Mbps o Domestic § Supersinet(Korea) in Daejeon: backbone – 10 Gbps § Link to major National Research Institutes § 5 Gbps: Daejeon – Seoul § 2. 5 Gbps: Daejeon – 9 major universities in Daegu(Kyungpook), Busan, Pohang(POSTECH), Gwangju, Suwon(SKKU), etc. § 1 Gbps: Daejeon – Other 8 major universitites not covered above

KOREN: Topology 8 M NCA Seoul 1 Gbps Suwon § ATM based Infrastructure § KOREN: Topology 8 M NCA Seoul 1 Gbps Suwon § ATM based Infrastructure § 6 Giga. Po. Ps Japan 2 M Seoul XP SNU, KAIST Singapore 8 Mbps Europe 45 Mbps for TEIN 10 M 2. 5 Gbps 40 Gbps (soon in 2003) KREONet Daejon 1 Gbps 45 M USA Daegu 155 Mbps Busan Gwangju § 1 e. Xchange Point(XP) 1 Gbps Based on the presentationa by S I Byun at NCA @ the 1 st Int. Workshop for HEP Data Grid at Kyungpook Nat’l Univ. Exchange Point Core Node

APII Testbed q Korea operates three APII Testbeds q KR-JP APII Testbed o Started APII Testbed q Korea operates three APII Testbeds q KR-JP APII Testbed o Started with 2 Mbps in April 1998 o Expanded to 8 Mbps in July 1999 o Will be expanded to 45 Mbps or 155 Mbps (2003) q KR-SG APII Testbed o 2 Mbps cables deployed in late 1999 o Will be expanded to 4~8 Mbps (2003) q KR-US APII Testbed/KREONet 2 o 45 Mbps link to STAR TAP in May 2001

TEIN q TEIN : Trans-Eurasia Information Network o connects Asia and European research networks TEIN q TEIN : Trans-Eurasia Information Network o connects Asia and European research networks q History o Endorsed as a new project of ASEM in the 3 rd summit meeting(2000. 10) § Korea, EC and Singapore proposed it together o 2 Mbps link was initially opened (2001. 12) § Link between Korea(KOREN)-France(RENATER 2) § Current Bandwidth : SCR 10 Mbps / PCR 20 Mbps (2002. 3)

TEIN Connectivity q European Countries connected to the TEIN o 30 countries and more TEIN Connectivity q European Countries connected to the TEIN o 30 countries and more than 3000 Research and Education Institutes are connected to TEIN via GEANT Austria, Belgium, Bulgaria, Switzerland, Cyprus, Czech Republic, Germany, Denmark, Estonia, Spain, Finland, France, Greece, Hungary, Ireland, Israel, Iceland, Italy, Lithuania, Luxembourg, Latvia, Netherlands, Norway, Poland, Portugal, Romania, Sweden, Slovenia, Slovak Republic, United Kingdom q Asian Countries (10 countries) China, Hong Kong, Indonesia, Japan, Korea, Malaysia, Philippines, Singapore, Thailand, Taiwan

APII/TEIN: Network Connectivity § APII Testbed : Korea – Japan/Singapore/USA § TEIN : Asia APII/TEIN: Network Connectivity § APII Testbed : Korea – Japan/Singapore/USA § TEIN : Asia – Europe

Bandwidth Requirements for HEP • • • Belle Experiment – At present, data of Bandwidth Requirements for HEP • • • 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 220 GHz 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 K 2 K 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. 6 TB – We need 2~3 Mbps Super. Kamiokande(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

Bandwidth Requirements for HEP (continues) • Summary for Korea-Japan connection – 130~370 Mbps by Bandwidth Requirements for HEP (continues) • 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) 500 Tbytes/year • and Run IIb(after 2004 ) > 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 – 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 Mbps (for Korean traffic)

Summary & Network Activities ( 2003 ) q Excellent network supports from APAN(-KR) o Summary & Network Activities ( 2003 ) q Excellent network supports from APAN(-KR) o Domestic KOREN/KREONET are the Advanced Network for Research § To be upgraded to Gb. E (6 sites) with 40 Gbps backbone o APII for Korea-US via KREONET (45 Mbps 310 Mbps) o Korea-US : 10 Gbps IEEAF link ( Link & Access Committee in APAN-KR is working ) o TEIN for Korea-Europe to be upgraded to > 45 Mbps Gb. E or 10 Gbps? o APII for Korea-Japan (now 8 Mbps) 64~155 Mbps § Or expect Gb. E (2 Gbps) with the Hyeonhae/Genkai Project APII q So far the HEP Data Grid project has gotten excellent supports from MIC/KISTI/NCA/KOREN-NOC and KT/IBM-Korea/CIES, etc.

Summary & Network Activities ( 2003 ) q HEP Data Grid is considered for Summary & Network Activities ( 2003 ) q HEP Data Grid is considered for most of Korean participating HEP experiments q Domestic HEP Data Grid is now in progress and in very good collaboration internationally with Europe/US/ Japan counterparts q Grid technologies are deployed in establishing testbeds for EU Data Grid and the Korean HEP will be collaborating with i. VDGL as well as CMS MC production team q Minimal bandwidth requirements for the HEP research is o 2. 5 Gbps over Korea-Japan-USA, 2. 5 Gbps over Korea-Europe