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International Workshop on HEP Data Grid Aug 23, 2003, KNU

Status of Data Storage , Network, Clustering in SKKU CDF group. Intae Yu*, Joong Seok Chae Department of Physics SungKyunKwan University (SKKU) Suwon, Korea. (On behalf of the HEP Data Grid Working Group). International Workshop on HEP Data Grid Aug 23, 2003, KNU.

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International Workshop on HEP Data Grid Aug 23, 2003, KNU

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  1. Status of Data Storage, Network, Clustering in SKKU CDF group Intae Yu*, Joong Seok Chae Department of Physics SungKyunKwan University (SKKU) Suwon, Korea (On behalf of the HEP Data Grid Working Group) International Workshop on HEP Data Grid Aug 23, 2003, KNU

  2. CDF II (Collider Detector at Fermilab) • Proton-Antiproton Collider Experiment • Collision Rate : 2.5 MHz • Event Rate to Tape : ~300Hz • Average Data Size of an Event : ~100KB • Expected Size of Real Data per year : • 109 Events * 100KB = 100 TB • Monte Carlo Data = Real Data * 3 • PByte Data Storage and Data Processing • Computing Power is required • CDFII Central Analysis Farm (CAF) International Workshop on HEP Data Grid Aug 23, 2003, KNU

  3. CDF CAF/Korea DCAF • CDF CAF(Central Analysis Farm) at Feynman Center • 306 Dual Nodes and 92 File Server (180 TB) • Develop DCAF at off-sites (UCSD, KNU,..) • Korea DCAF ( Decentralized Analysis Farm) at KNU • A Linux Cluster with PBS Batch System at KNU: 23 CPU’s • Implementation of SAM Grid through DCAF and PBS cluster •  Dr. Kihyeon Cho’s Talk International Workshop on HEP Data Grid Aug 23, 2003, KNU

  4. SKKU CDF Group • SKKU CDF group’s activity • 1 Faculty and 4 Graduate students • B Physics Analysis • Currently ~400 GB and ~10 CPU’s are used at SKKU and Fermilab • Computing Resources at SKKU • File Server : ~ 4 TB (2 TB + 2 TB(plan)) • Linux Farm : ~10 Nodes (2 + 8 (plan)) • Desktops : 7 Linux PC’s • Network : KOREN + KORNET International Workshop on HEP Data Grid Aug 23, 2003, KNU

  5. File Server • 2 TB File Server • Optimization is in progress • 12 Channel Raid (3WARE) • 13* 180G 7200rpm HDD (IBM) • 1Gbps to work nodes (planned) • Another 2TB File Server planned International Workshop on HEP Data Grid Aug 23, 2003, KNU

  6. Linux Farm • 1 Batch Server + 1 Work node • 7-9 Work nodes more in a month • CPU : 1 Pentium 4 2.8C • Hyper-Threading Technology • Functions like dual CPU • 1G DDR RAM/120G 7200rpm HDD • 1Gbps bandwidth • Plan to install PBS batch System • Move to FBSNG system (mini DCAF) • and SAM GRID International Workshop on HEP Data Grid Aug 23, 2003, KNU

  7. Construction Model LINUX FARM CONSTRUCTION MODEL User Linux desktop Submit job Return result Batch job Batch Server Working nodes Result Result NFS NFS File Server International Workshop on HEP Data Grid Aug 23, 2003, KNU

  8. Network Fermilab/CDF CHEP/KNU KOREN 155Mbps SNU APII SKKU • Network Connectivity CHEP - SNU, CHEP - SKKU: ~ 40 Mbps CHEP - CDF : ~20 Mbps SKKU - CDF : < 2 Mbps : plan Direct Connection to KOREN International Workshop on HEP Data Grid Aug 23, 2003, KNU

  9. Grid Activity • Globus 2.2 is installed in a test machine • Configuration of CDF Analysis Software under Globus environment will be done  between SKKU and KNU DCAF • In collaboration with SKKU Belle group, EUDG test bed will be constructed • Plan to implement SKKU mini DCAF with SAM GRID in Linux farm International Workshop on HEP Data Grid Aug 23, 2003, KNU

  10. Summary • SKKU CDF group’s work on Grid is in a very early stage • Construction of file server and linux farm is in progress • Plan 1 Gbps between SKKU machines • 100 Mbps to KNU/SNU and 20 Mbps to Fermilab/CDF • 1st : Configuration of CDF software in Globus 2.2 • 2nd : Build EUDG testbed at SKKU • 3rd : Construct mini DCAF through SAM GRID at SKKU International Workshop on HEP Data Grid Aug 23, 2003, KNU

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