Networks for participating in HEP experiments from Korea

Youngdo Oh, Dongchul SonCenter for High Energy Physics

Kyungpook Nat’l Univ., Daegu, Korea

APAN High Energy Physics Workshop 2003 January 21

Contents

High Energy Physics in Korea CHEP(Center for high energy physics) Korean HEP Data Grid

Korean Network Status KOREN/KREONET : Present and future APII/TEIN

Summary

CHEP - Center for High Energy Physics

A national center of excellence (Science Research Center: SRC) designated by the Korean MOST and supported by the KOSEF

The only Center of its kind in Korea: Most HE physicists and students are participating to the Center and are supported by the CHEP

Major research activities includeo CMS at CERNo AMS at International Space Station (ISS)o Belle/K2K at KEK in Japano CDF/Phenix in USAo HEP Data Grid for all of the above experiments

Korean HEP now and future

Large-scale enterprise experiments to which Koreans are committed now and in the futureo Belle / KEK – Japan : in progress o K2K / KEK – Japan : in progresso CDF / Fermilab (USA) : in progresso AMS / ISS (MIT, NASA, CERN) : data taking starts in 2

005o CMS (CERN, Europe) : data taking starts in 2007o Linear Collider Exp (either in Asia, Europe or USA) : aro

und 2009

HEP Data Grid Development

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.)

Korean HEP Data Grid Working Group was formed under the auspices of the Grid Forum Korea (GFK) in October 2001

A proposal of the Korean HEP Data Grid has been submitted to the Ministry of Information and Communication March 16, 2002

It is approved by KISTI / MIC on March 22, 2002 and in progress nowo 210 Mwons(ca. US$168k) in 2002

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/USAo 287 Mwons total (ca. US$230k) in 2002

HEP Data Grid DevelopmentKNU and SNU host one EDG testbed each and ar

e running at a fundamental level (July 2002)o Application of the EDG testbed to currently running exp

eriments: Configuration EDG testbed for CDF data analysis EDG testbed for K2K data analysis EDG testbed for CMS data analysis

CHEP is discussing with iVDGL collaboration (since August 2002)o CHEP will set up a CMS MC production testbed soon

(Under the CMS Project named Data Challenge 2003)

1. CMSTier-1

Regional Center(CERN)

4. BelleExp

(Japan)

5. K2KExp

(Japan)

3. CDFGrid-KCAF(USA)

2. AMSRegional Center(CERN)

6. PHENIX

Grid(USA)Data

GridCluster

Korea U

Seongkyunkwan U

Chonnam N U

Gyeoogsang N U

Konkuk U

Ewha W U

Dongshin U

KBSI

…Other users

CHEPKyungpook N U

Seoul N U

Yonsei U

Participation of Institutions in the HEP Data Grid Project

Distributed Resources (2002) Distributed Resources (2002) SNU

6 CPUs

Yonsei1 CPU

SKKU1 CPU

Ewha WU1 CPU

Chonnam1 CPU

Konkuk U1 CPU

APIITEIN

…

CHEP142 CPUs

~50TB Storage

Suwon

Seoul

XP

Daegu

XP

Busan

XPGwangju

XP

Daejeon

XP

KOREN/NOC64 CPUs

US FermilabKorean CDF

10 CPUs

Dongshin1 CPU

KREONETKORNET

CERNKorean1 CPU

Japan KEKKorean Belle

12 CPUs

45Mbps

10Mbps

8Mbps

: KORENBackbone

SNU SNU EDG TestbedEDG Testbed

CHEP/KNUCHEP/KNUStorage Storage and networkand networkequipmentequipment

Korean Networks

Domestic Infrastructure– KOREN– KREONET

International R&D Networks – APII/TEIN

KORENKorea Advanced Research NetworkA non-profit advanced research network Funded by MIC (Ministry of Information and

Communication) and KT since 1995To provide high-performance networking

servicesTo supports the R&D activity of new

technology and applications6+1 router nodes across the nation based

upon ATM technology with advanced services deployed

37 member Institutes

History of KOREN

1st Phase (’95~’97): ATM Serviceo Launched KOREN (95)o Built optical backbone between Seoul and Daejeon

2nd Phase (’98~2001): IP Service over ATMo Opened the Network Operation Center (NOC)o Interface with APII Testbed: JP/SG/US

Deployed 6 GigaPoP Interfaced with other domestic R&D networks (HPCNet/KREONET2 (NOC:KISTI)

3rd Phase (2002~2005): Optical Internet based on DWDMo Backbone : Tens of Giga bpso Access network : several Giga bps

KREONETResearch Network formerly supported by the MO

ST, now by MIC and operated by KISTIMembers: ~200 institutions (mostly by 45 Mbps)Major research institutions (universities and rese

arch institutes) are networkedOwn the APII link to US (45 Mbps)And its own links to Japan (imnet) and other coun

tries

KREONETFuture Plan (2003)

o APII link to US(StarTap): upgrade to 310 Mbpso 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

ATM based Infrastructure

6 GigaPoPs

1 eXchange Point(XP)

2.5Gbps 40 Gbps (soon in 2003)

155Mbps

Exchange Point

Core Node

Seoul

Daejon

GwangjuBusan

Daegu

Japan

Singapore

Europe for TEIN

8M

2M

45M USA

10MSuwon

KREONet

Seoul XP

1 Gbps

SNU, KAISTNCA1 Gbps

Based on the presentationa by S I Byun at NCA @ the 1st Int. Workshop for HEP Data Grid at Kyungpook Nat’l Univ.

45 Mbps

1 Gbps

8 Mbps

APII Testbed Korea operates three APII Testbeds

KR-JP APII Testbedo Started with 2Mbps in April 1998o Expanded to 8Mbps in July 1999o Will be expanded to 45Mbps or 155Mbps (2003)

KR-SG APII Testbedo 2Mbps cables deployed in late 1999o Will be expanded to 4~8Mbps (2003)

KR-US APII Testbed/KREONet2o 45Mbps link to STAR TAP in May 2001

TEIN TEIN : Trans-Eurasia Information Network

o connects Asia and European research networks

Historyo Endorsed as a new project of ASEM in the 3rd

summit meeting(2000.10) Korea, EC and Singapore proposed it together

o 2Mbps link was initially opened (2001.12) Link between Korea(KOREN)-France(RENATER

2) Current Bandwidth : SCR10Mbps / PCR

20Mbps (2002.3)

TEIN ConnectivityEuropean Countries connected to the TEIN

o 30 countries and more than 3000 Research and Education Institutes are connected to TEIN via GEANT

Asian Countries (10 countries)

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

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

China, Hong Kong, Indonesia, Japan, Korea, Malaysia, Philippines, Singapore, Thailand, Taiwan

China, Hong Kong, Indonesia, Japan, Korea, Malaysia, Philippines, Singapore, Thailand, Taiwan

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

APII/TEIN: Network Connectivity

• 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 millio

ns 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

Bandwidth Requirements for HEP

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 MbpsBetween Japan-USA 840 1030 1030 Mbps

(for Korean traffic)

Excellent network supports from APAN(-KR)o Domestic KOREN/KREONET are the Advanced Network for Research

To be upgraded to GbE (6 sites) with 40 Gbps backboneo APII for Korea-US via KREONET (45 Mbps310 Mbps)o Korea-US : 10Gbps IEEAF link ( Link & Access Committee in APAN-KR is working )o TEIN for Korea-Europe to be upgraded to > 45 Mbps GbE or 10

Gbps?o APII for Korea-Japan (now 8 Mbps) 64~155 Mbps

Or expect GbE (2 Gbps) with the Hyeonhae/Genkai Project APII

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 )

Summary & Network Activities ( 2003 )

HEP Data Grid is considered for most of Korean participating HEP experiments

Domestic HEP Data Grid is now in progress and in very good collaboration internationally with Europe/US/ Japan counterparts

Grid technologies are deployed in establishing testbeds for EU Data Grid and the Korean HEP will be collaborating with iVDGL as well as CMS MC production team

Minimal bandwidth requirements for the HEP research iso 2.5 Gbps over Korea-Japan-USA, 2.5 Gbps over Korea-E

urope