Networks for participating

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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 Natl Univ., Daegu, Korea
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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

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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 include
• CMS at CERN
• AMS at International Space Station (ISS)
• Belle/K2K at KEK in Japan
• CDF/Phenix in USA
• HEP Data Grid for all of the above experiments

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Korean HEP now and future

• Large-scale enterprise experiments to which
  Koreans are committed now and in the future
• Belle / KEK Japan in progress
• K2K / KEK Japan in progress
• CDF / Fermilab (USA) in progress
• AMS / ISS (MIT, NASA, CERN) data taking starts
  in 2005
• CMS (CERN, Europe) data taking starts in 2007
• Linear Collider Exp (either in Asia, Europe or
  USA) around 2009

5
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 now
• 210 Mwons(ca. US168k) 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/USA
• 287 Mwons total (ca. US230k) in 2002

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HEP Data Grid Development

• KNU and SNU host one EDG testbed each and are
  running at a fundamental level (July 2002)
• Application of the EDG testbed to currently
  running experiments 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)
• CHEP will set up a CMS MC production testbed soon
  (Under the CMS Project named Data Challenge 2003)

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Participation of Institutions in the HEP Data
Grid Project
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Distributed Resources (2002)
US Fermilab Korean CDF 10 CPUs
Ewha WU 1 CPU
45Mbps
SNU 6 CPUs
Konkuk U 1 CPU
CERN Korean 1 CPU
Yonsei 1 CPU
10Mbps
SeoulXP
8Mbps
Japan KEK Korean Belle 12 CPUs
SKKU 1 CPU
Suwon
KOREN/NOC 64 CPUs
DaejeonXP
DaeguXP
CHEP 142 CPUs 50TB Storage
KOREN Backbone
BusanXP
Gwangju XP
Chonnam 1 CPU
Dongshin 1 CPU
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SNU EDG Testbed
CHEP/KNU Storage and network equipment
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Korean Networks

• Domestic Infrastructure
• KOREN
• KREONET
• International RD Networks APII/TEIN

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KOREN

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

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History of KOREN

• 1st Phase (9597) ATM Service
• Launched KOREN (95)
• Built optical backbone between Seoul and Daejeon
• 2nd Phase (982001) IP Service over ATM
• Opened the Network Operation Center (NOC)
• Interface with APII Testbed JP/SG/US
• Deployed 6 GigaPoP
• Interfaced with other domestic RD networks
• (HPCNet/KREONET2 (NOCKISTI)
• 3rd Phase (20022005) Optical Internet based on
  DWDM
• Backbone Tens of Giga bps
• Access network several Giga bps

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KREONET

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

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KREONET

• Future Plan (2003)
• APII link to US(StarTap) upgrade to 310 Mbps
• 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

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KOREN Topology
?1 Gbps
Japan
8M
Seoul XP
? 8 Mbps
Singapore
2M
SNU, KAIST NCA 1 Gbps
Seoul
Europe for TEIN
10M
? 45 Mbps
Suwon
2.5Gbps? 40 Gbps (soon in 2003)
KREONet
45M
USA
Daejon

• ATM based Infrastructure
• 6 GigaPoPs
• 1 eXchange Point(XP)

1 Gbps
Daegu
155Mbps
Busan
Gwangju
Exchange Point
Core Node
Based on the presentationa by S I Byun at NCA _at_
the 1st Int. Workshop for HEP Data Grid at
Kyungpook Natl Univ.
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APII Testbed

• Korea operates three APII Testbeds
• KR-JP APII Testbed
• Started with 2Mbps in April 1998
• Expanded to 8Mbps in July 1999
• Will be expanded to 45Mbps or 155Mbps (2003)
• KR-SG APII Testbed
• 2Mbps cables deployed in late 1999
• Will be expanded to 48Mbps (2003)
• KR-US APII Testbed/KREONet2
• 45Mbps link to STAR TAP in May 2001

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TEIN

• TEIN Trans-Eurasia Information Network
• connects Asia and European research networks
• History
• Endorsed as a new project of ASEM in the 3rd
  summit meeting(2000.10)
• Korea, EC and Singapore proposed it together
• 2Mbps link was initially opened (2001.12)
• Link between Korea(KOREN)-France(RENATER 2)
• Current Bandwidth SCR10Mbps / PCR 20Mbps
  (2002.3)

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TEIN Connectivity

• European Countries connected to the TEIN
• 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
China, Hong Kong, Indonesia, Japan, Korea,
Malaysia, Philippines, Singapore, Thailand,
Taiwan
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APII/TEIN Network Connectivity

• APII Testbed Korea Japan/Singapore/USA
• TEIN Asia Europe

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Bandwidth Requirements for HEP

• Belle Experiment
• At present, data of 30 Tbytes/year are being
  collected 0.3 TB/day
• It is approxmately 515 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 Mbps360 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 23 Mbps
• SuperKamiokande(Super-K) Experiment (Kamioka-near
  Toyama)
• Collects approx. 27 Gbytes of data, needs 827
  Gb/86.4 ks 2.2 Mbps
• About the same size of Monte Carlo data are
  produced
• We need 56 Mbps

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Bandwidth Requirements for HEP (continues)

• Summary for Korea-Japan connection
• 130370 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 ) gt 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

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Summary Network Activities ( 2003 )

• Excellent network supports from APAN(-KR)
• Domestic KOREN/KREONET are the Advanced Network
  for Research
• To be upgraded to GbE (6 sites) with 40 Gbps
  backbone
• APII for Korea-US via KREONET (45 Mbps?310 Mbps)
• Korea-US 10Gbps ? IEEAF link
• ( Link Access Committee in APAN-KR is
  working )
• TEIN for Korea-Europe to be upgraded to gt 45 Mbps
  ? GbE or 10 Gbps?
• APII for Korea-Japan (now 8 Mbps) ? 64155 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.

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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 is
• 2.5 Gbps over Korea-Japan-USA, 2.5 Gbps over
  Korea-Europe