1. Data Processing for CDF Computing
Feb. 23~28, 2009
APCTP-2009 YongPyong, Korea
Data Processing for CDF Computing
Minho Jeung, Hyunwoo Kim
and Kihyeon Cho* (
* Corresponding author
April 25, 2019

2. The CDF Collaboration Europe  21 institutions North America
France group,
LPNHE/ CNRS-IN2P3&UPMC and ParisVII Universities
North America
 34 institutions
Asia
 8 institutions
Korea group,
KISTI, Chonnam, KNU, SNU, SKKU
The CDF Collaboration
 15 Countries
 63 institutions
 635 authors 2

3. Accelerator & CDF performance
Tevatron is the world highest energy accelerator at S=1.96 TeV.
CDF will be able to take data until to 2010.
Data processing and analysis will be done five more years after that.
Data taken 4.1 fb-1 (Nov. 2008)
5~6 fb-1 till by 2009

5. Network between Korea-Fermilab
GLORIAD
ESNet
Mathis Equation
BW: Upper bound of TCP throughput
MSS: Max Segment Size
RTT: Round Trip Time
P: Packet Loss
Nov vs. Jan

6. CHEP(Korea) – Fermilab
Nov. 10~24, 2005 (2 weeks)
Packet loss is low.
RTT is unstable.
2019년 4월 25일

7. Networks between KISTI and abroad (Jan. 2009)
KEK
GLORIAD-KR/10Gbps
Hong
Kong
CSTNet-APAN-JP/1Gbps
Fermilab
Seattle
ESnet/10Gbps
CERN/
IN2P3
GLORIAD/1Gbps
Chicago
StarLight/10Gbps
KISTI
KISTI-Fermilab directly via Seattle (not via Chicago)
2019년 4월 25일

8. KISTI-Fermilab Jan. 6~20, 2009 (2 weeks) Packet loss is zero.
RTT is stable.
We avoid Chicago area congestions by direct network from Seattle.
2019년 4월 25일

9. KISTI-CERN Jan. 6~20, 2009 (2 weeks) Packet loss is zero.
RTT is stable.
2019년 4월 25일

10. KISTI-IN2P3 Jan. 6~20, 2009 (2 weeks) Packet loss is zero.
RTT is stable.
2019년 4월 25일

11. CDF Farms around world CAF (2001) DCAF (2003) Grid CAF (2006) CGCC
(2008)
UCSD CAF
Toronto CAF
Rut CAF
Lyon CAF
Taiwan AS
BCN CAF
CNAF CAF
Korean CAF : KISTI, KNU
Japan CAF
European
CAF
Pacific
North American
Tsukuba U
ASGC, Taiwan
KISTI
KNU 11 11

12. Progress of CDF Farms 12 Name Starting Date Grid middleware
Job scheduling
Content
Site
CAF
2001 -
Condor
Cluster farm inside Fermilab
USA (Fermilab)
DCAF
2003
Cluster farm outside Fermilab
Korea, Japan, Taiwan, Spain (Varcelona, Cantabria), USA (Rutgers, San Diego), Canada, France
Grid CAF
2006
LCG/OSG
Resource Broker,
Grid farm
North America CAF
European CAF
Pacific CAF
CGCC
(CDF Grid Computing Center)
2008
LCG
Big Grid farm
Korea (KISTI)
France (IN2p3)
Italy (CNAF) 12 12

13. Grid CAF Context Diagram of Grid CAF Grid Farm (European CAF)
Grid Farm (North America CAF)
User Interface
Grid Farm (Pacific CAF)
CAF GUI
Grid Site
(IPAS_OSG)
Grid Site
(Taiwan-LCG2 )
Grid Site
(KR-KISTI-HEP)
Grid Site
(JP-TSUKUBA)
Grid Site
(IPAS_CS)
Legend
Service Component
Grid CAF Boundary
Grid Site Boundary
Job Transport
Grid Pool 13 13

14. The comparison of Grid CAF
Head node
Work node
Grid
Middleware
Method VO
(Virtual Organization)
North America CAF
Fermilab (USA)
USSD
(USA)
etc
OSG
Condor over Globus
CDF VO
European CAF
CNAF (Italia)
IN2P3
(France)
Etc
LCG
WMS
(Workload Management System)
Pacific CAF
AS (Taiwan)
KISTI
(Korea)
LCG, OSG 14 14

15. Grid Site (KR-KISTI-HEP) Grid Farm (Pacific CAF)
Pacific CAF at KISTI
Service Component
Legend
Repository
Grid CAF Boundary
Grid Site Boundary
Grid Pool
Job Data
Transportation
Control Data
Grid Site (KR-KISTI-HEP)
Worker Node (hep015) …
(hep004)
Work Node (hep003)
dCache Pool
(se-hep)
Grid Farm (Pacific CAF)
VOMS
Authentication
Glideins
dCache
User
Interface
CafGui
CafSubmit
CafMon
CAF Head Node
Submitter
Monitor
Collector
Negotiator
Schedd
Globus
....
Job Submission
Web
monitoring
Job Output
Condor CE
(hep001)
25 core processors
30 T Byte 15 15

16. Monitoring of Pacific CAF16 16

17. Monitoring of Pacific CAF17 17

18. HEP Computing farms in Korea

19. Jobs / CPU time per VO
Jobs / VO
Jan.-Nov. 2008
CPU time / VO

20. CDF Resource Usage - Total
Ref. Dr. Donatella Lucchesi

21. Offsite Usage – USA & Asia
=> CGCC (CDF Grid Computing Center)
Donatella clearly mentioned about KISTI
in International Finance Committee Meeting on November ’08.
Ref. Prof. DongHee Kim

22. CDF Grid Computing Center (CGCC)
A hardware allocation plan for CGCC
Pacific CAF at KISTI
CGCC at KISTI
Head node
paccaf.phys.sinica.edu.tw
New Head node
VOMS server
voms.cnaf.infn.it
New VOMS server
Work nodes
25 core processes
400 core processes
Storage
30 T byte
300 T byte 22 22

23. Summary
Data processing for CDF has been developed from CAF (Central Analysis Farm) to Grid.
KISTI is one of leading institutes of CDF data processing.

24. Thank you. (http://hep.kisti.re.kr)