1. Geant4 International Workshop June 13, 2012 0

2. Kihyeon Cho Contents Introduction  High Energy Physics at KISTI Geant4 Project Simulation on secondary beam Summary 1

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4. Kihyeon Cho e-Science paradigm Theory Simu- lation Experi- ment Theory-Simulation PGS LQCD Geant4 To probe the Standard Model and search for New Physics CDF Belle/Belle II High Energy Physics @ KISTI Theory-Experiment-Simulation K.Cho and H.W.Kim, JKPS (2009) Theory-Exp. FKPPL Model e-HEP environment - Remote Control Room - Data Handling System - EVO, etc.

5. Kihyeon Cho 4 ⇒ Feed-back between experiments (Belle & CDF) and theories inside KISTI 1. Theory-Experiment 1. Theory-Experiment

6. Kihyeon Cho 1. Data production CDF Remote Control Room @KISTI 2. Data processing Pacific CAF(CDF Analysis Farm) ⇒ North America CAF @KISTI 3. Data Analysis Collaboration EVO servers @KISTI 4. Belle II Data Handling System Working Group Chair (K. Cho) To study high energy physics anytime anywhere even if we are not on-site (accelerator laboratory) 2. Experiment-Computing Simulation

7. Kihyeon Cho Theory model – Simulations  PGS  LQCD  Geant4 => Today’s talk  Astro-Nuclear Simulation by RI accelerator’s user group 6 Ex) A study of Higgs model using cyberinfrastructure @KISTI 3. Theory-Simulation 3. Theory-Simulation

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9. Kihyeon Cho Project Outline Title: Development of Geant4 for medical physics and High Energy physics PI: Kihyeon Cho & Soonwook Hwang Sponsor: Creative project by KISTI Budget: ~ half million dollar Period: Jan. 1, 2012~ Dec. 31, 2012 (Possibly extended) (Possibly extended)Goal:  Porting on Supercomputing  Simulation for HEP and Medical physics using Geant4  Profiling and Large-scale test, evaluation and improvement  Geant4 R&D using many core. Web page  https://hep.kisti.re.kr/geant4 https://hep.kisti.re.kr/geant4 8

10. Kihyeon Cho Man Power KISTI, Korea  Kihyeon Cho, Soonwook Hwang, Taegil Bae, Youngjin Kim, Sangsu Ryu Yonsei University, Korea  Kyungho Kim, Youngjoon Kwon National Cancer Center  Se Byeong Lee, Sungkoo Cho, Jaeik Shin Fermilab, USA  Soon Yung Jun, Daniel Elvira, James Kowalkowski, Philippe Canal, Krzysztof Genser CMU, USA  Dongwook Jang UCSF, USA  Jungwook Shin, Bruce Faddegon 9

11. Kihyeon Cho Global Community (FKPPL) HEP - Accelerator R&D - Detector, … Medical Physics -Proton Accelerator,.. Geant4 R&D Grid FarmSupercomputer Geant4 Collaboration - code development UC San Francisco - Medical application using Geant4-MT R&D Infra- structure HEP Medical Physics Fermilab - Many core processing Appli- cation CERNIN2P3KEK InternationalCollaboration 10

12. Kihyeon Cho High Energy Physics vs. Medical Physics High Energy PhysicsMedical Physics Input dataN/A50MB (ex, CT data) FarmGrid Farm/ SupercomputerSupercomputer PortingGrid FarmSupercomputer Application PackageHEP ApplicationTOPAS, GATE CommunityHEP Application (Accelerator and Detector) Proton Accelerator Center International CollaborationFermilab, USAUCSF/SLAC/MGH, USA Contents of international Collaboration Detector simulation package using Multi- thread/parallel computing Proton Accelerator using Geant4 application 11

13. Kihyeon Cho Work on Progress Geant4 R&D  Supercomputing Porting  SUN Cluster Porting - Geant4-ST, MPI(ParGeant4), Geant4-MT  IBM AIX OS – Geant4-MT => Performance measurement and analysis  Parallel Computing using Many core  Collaboration with Fermilab HEP application  Accelerator and Detector R&D, etc.  Nuclear Astrophysics  Theory models (MadGraph,..) Medical Application  Accelerator therapy etc. 12

14. Geant4 R&D KISTI Supercomputing Porting Sun Linux Cluster  Geant4 ST  Geant4 MPI(ParGeant4)  Geant4 MT => Dr. Taegil Bae’s talk IBM AIX OS  Geant4-MT  Medical Application => Dr. Sansu Ryu ‘s talk 13 Tachyon(SUN) Phase 2 ManufactureSUN Blade 6048 ArchitectureCluster Process modelIntel (Nehalem) # of Nodes3,200 nodes # of CPU cores 25,600 (8 per node) Rpeak (Tflops) 300 324 Total Memory76TB Disk Storage1.2PB Tape Storage2PB Interconnection NetworkIB 4X QDR

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16. Kihyeon Cho Simulation on secondary beam Object  Geant4 Simulation for secondary beams and dE/dxMethod  To analyze secondary beam depending on incident beam energy, target material, interaction model, …Output  Secondary particles  Energy dissipation… 15

17. Kihyeon Cho Preliminary results 16 Work on process by Kyungho Kim

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19. Kihyeon Cho To do list HEP Applications,… Geant4 MT (Multi Thread)  Profiling  Application Genat4 R&D using many core processing Nuclear Astrophysics Channel Theory models … 18

20. Kihyeon Cho Summary As one of e-Science paradigm of experiment- Theory-Simulation, Geant4 (Theory-Experiment) project has been launched this year in Korea. Since several accelerator are building in Korea, Geant4 @ supercomputing will help for accelerators and detectors R&D. * Geant4 Home page  https://hep.kisti.re.kr/geant4 19

21. Kihyeon Cho Discussions How to build Geant4 community?  Medical  HEP How to join Geant4 collaboration?  What can we do?  Validation?  Performance test? –Geant4MT? –Supercomputer?  Who can do? Anything else? => Discussion session 20

22. HEP@KISTI