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Alice Computing

Alice Computing. Beob Kyun Kim e-Science Division, KISTI 2008. 08. 21. 1. Outline. Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing

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Alice Computing

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  1. Alice Computing Beob Kyun Kim e-Science Division, KISTI 2008. 08. 21 1

  2. ALICE Computing Outline Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing Support for Domestic ALICE Researchers 2

  3. ALICE Computing Understanding of ALICE Computing LHC Large HadronCollider 27km particle accelerator Ready to start in a couple of weeks!!

  4. ALICE Computing ALICE Understanding of ALICE Computing A Large Ion Collider Experiment 1000 people, 105 institutes,30 countries

  5. ALICE Computing Understanding of ALICE Computing Tier Architecture

  6. ALICE Computing Understanding of ALICE Computing Production Status of ALICE VO

  7. ALICE Computing Understanding of ALICE Computing AliEn (Alice Environment) • Grid Framework development by ALICE • Perfect compatibility with LFC (LCG File Catalogue) • Globus/GSIcompatible authentication

  8. ALICE Computing Start 2001 2002 2003 2004 2005 2006 2007 20% Data Challenge WLCG integration 10% Data Challenge Physics Performance Report (mixing & reconstruction) First production (distributed simulation) Functionality + Simulation Interoperability + Reconstruction Performance, Scalability, Standards + Analysis AliEn (Alice Environment) • There are millions lines of code in OS dealing with GRID issues • Why not using them to build the minimal GRID that does the job? • Fast development of a prototype, can restart from scratch etc etc • Hundreds of users and developers • Immediate adoption of emerging standards • AliEn by ALICE (5% of code developed, 95% imported)

  9. ALICE Computing Understanding of ALICE Computing AliRoot classes General Simulation Reconstruction Analysis - Base classes - Interface classes - Clusterization - ESD/AOD classes - Steering - Event generators - Tracking - HBT - IO control - Geometry & Materials - PID - Charm, jets, etc. AliEn: General Layout • Root / Geant3 / AliRoot • Core of ALICE computing model is AliRoot • Uses ROOT framework • Couple AliEn with ROOT for Grid-based analysis. • Use PROOF– Parallel ROOT Facility • To the user it’s like using ROOT

  10. ALICE Computing Understanding of ALICE Computing AliRoot Layout G3 G4 Fluka PDF HIJING G R I D A L I E N VZERO ACORDE STRUCT HLT Virtual MC PYTHIA6 T0 EVGEN DPMJET RAW Monit STEER AliSimulation AliReconstruction ESD/AOD classes PMD ISAJET Analysis HBTAN JETAN FMD ITS TPC TRD TOF PHOS EMCAL HMPID MUON ZDC ROOT CINT GEOM HIST TREE PROOF IO MATH …

  11. ALICE Computing AliRoot: Execution Flow Understanding of ALICE Computing Initialization Event Generation Particle Transport Hits AliSimulation Clusters Digits/ Raw digits Event Merging (optional) Summable Digits AliReconstruction Tracking PID ESD AOD Analysis

  12. ALICE Computing Understanding of ALICE Computing MonALISA Repository for ALICE

  13. ALICE Computing Outline Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing Support for Domestic ALICE Researchers 13

  14. ALICE Computing ALICE Grid Computing in Korea ALICE Grid Computing in Korea • Sejong • “ALICECE” cluster is running 58 nodes. • Seyong Kim, Byunghee Han, Hyunggyu Kim • KISTI • “ce-alice” cluster is running 112 nodes. • Soonwook Hwang, Beob Kyun Kim

  15. ALICE Computing Outline Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing Support for Domestic ALICE Researchers 15

  16. ALICE Computing History of KISTI ALICE Tier2 Centre Feb. 2007 : Official ALICE-LCG Site Jun. 2007 : First Attendance at EGEE Tutorial & Asia Federation Meeting Oct. 2007 : KICOS – CERN MoU May. 2008 : CCRC’08 May 2008 International Summer School on e-Science and Grid Computing Participation for Global Collaboration of ALICE Computing Online Conferences for AP & ALICE-TFT (from Feb. ’08 ~) 3 EGEE Tutorial (Sep. 07, Oct. 07, Apr. 08) 4 Asia-Federation Meeting (Sep. 07, Oct. 07, Apr. 08) KISTI ALICE Tier2 Centre Status Report 16

  17. ALICE Computing Status of KISTI ALICE Tier2 Centre 2007. Oct., KICOS-CERN MoU Signing Party CERN : Dr. Jos Engelen (CSO of CERN) KICOS : Chun Il Eom (KICOS) Participants Dr. Haeng Jin Jang : ALICE Tier2 Centre Leader Dr. Soonwook Hwang : WLCG Collaboration Representative Dr. Beob Kyun Kim Mr. Sang Bae Park Dr. Christophe Bonnaud KISTI ALICE Tier2 Centre Status Report 17

  18. ALICE Computing KISTI ALICE Tier2 Centre Status Report Status of KISTI ALICE Tier2 Centre

  19. ALICE Computing ALICE Tier2 Centre Resources 13 servers(1U) for ALICE service RB, WMS+LB, PX, RGMA, BDII, VOMS, LFC, VOBOX, CE, UI, VOMS 14 servers(1U) for WNs (112 core) 36 core(8core)  48 core + 64 core (Dr. Hwang) Status KISTI ALICE Tier2 Centre Status Report 19

  20. ALICE Computing ALICE Tier2 Centre KISTI ALICE Tier2 Centre Status Report 20

  21. ALICE Computing ALICE Tier2 Centre – Site Overview KISTI ALICE Tier2 Centre Status Report 21

  22. ALICE Computing ALICE Tier2 Centre – Overall Reports KISTI ALICE Tier2 Centre Status Report Done Jobs since last July : 10774 22

  23. ALICE Computing ALICE Tier2 Centre – Jobs Status KISTI ALICE Tier2 Centre Status Report 23

  24. ALICE Computing ALICE Tier2 Centre – Total Wall Time KISTI ALICE Tier2 Centre Status Report 1.21 % 24

  25. ALICE Computing ALICE Tier2 Centre – Total Wall kSI2K KISTI ALICE Tier2 Centre Status Report 0.86 % 25

  26. ALICE Computing ALICE Tier2 Centre – Avg. Running Jobs KISTI ALICE Tier2 Centre Status Report 1.2 % 26

  27. ALICE Computing ALICE Tier2 Centre – Inter-Site Traffic KISTI ALICE Tier2 Centre Status Report 27

  28. ALICE Computing ALICE Tier2 Centre – In/Out Traffic KISTI ALICE Tier2 Centre Status Report 28

  29. ALICE Computing Outline Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing Support for Domestic ALICE Researchers 29

  30. ALICE Computing KISTI ALICE Tier2 Centre’s Roadmap 30 TB Storage within this year SE + dCache Test for KISTI Supercomputer 1st Software stack test will be started in the mid of August gLite Function Test on CentOS5.1 The world first success Now, it will be tested again on existing software stack of Supercomputer. Some issues on Software stack Firewall Queue 150 kSI2K, 50 TB, 10G will be available in next year KISTI ALICE Tier2 Centre’s Roadmap 30

  31. ALICE Computing Outline Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing Support for Domestic ALICE Researchers 31

  32. ALICE Computing Seoul National University, from 14th to 25th July Jointly Organized by KISTI, ICPR, CNRS/IN2P3 within FKPPL Supported by CERN(Switzerland), ASGC(Taiwan), INFN(Italy) Topics the installation of grid services targeting grid site administrators grid middleware services and high-level tools suited for service administrators and tool developers grid-enabled e-Science applications especially in the field of high energy physics and life sciences. Summer School on e-Science and Grid Computing 32

  33. ALICE Computing Lecturers Summer School on e-Science and Grid Computing 33

  34. ALICE Computing Summer School on e-Science and Grid Computing 34

  35. ALICE Computing Summer School on e-Science and Grid Computing • ROOT, PROOF • Given by Gerardo Ganis • ROOT Developer, CERN • ROOT • Installation of & Introduction to ROOT • ROOT Collection and Trees (with some hands-on) • PROOF • Installation of & Introduction to PROOF • Advanced PROOF usage (with some hands-on) • ALICE Computing, AliEn • Given by Pablo Saiz • AliEn Developer, CERN • Tutorial • Introduction to ALICE Computing • Installation of & Introduction to AliEn (with some hands-on) • Working with File Catalog (with some hands-on)

  36. ALICE Computing Outline Understanding of ALICE Computing ALICE Grid Computing in Korea KISTI ALICE Tier2 Centre Status Report KISTI ALICE Tier2 Centre’s Roadmap 2008 International Summer School on e-Science and Grid Computing Support for Domestic ALICE Researchers 36

  37. ALICE Computing Contribution Plan for Korea ALICE Community Contribution Plan for Korea ALICE Community • UI Machine with AliEn • Domestic Researchers will have one account for each. • Researchers can submit their job from this machine. • AliEn will be installed and managed by KISTI. • No need to follow up AliEn version upgrade schedule. • Currently, small amount of disk is allocated. • In the near future, the allocated amount will be increased. • Use of KISTI Resources • We have checked the usability of using KISTI’s resources • Pablo Saiz (CERN), Bumsu Jang (Yonsei Univ.), Beob Kyun Kim (KISTI) • Researchers can submit their job to be run at KISTI’s resource which is one of the most stable farms. • Technical Information wiki • Within this year, a wiki will be launched for Korea ALICE Community. • It will includes technical issues on using AliEn, gLite MW, etc. 37

  38. ALICE Computing Q&A kyun@kisti.re.kr

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