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2002 Fiscal Year Final Research Report Summary

Development of Lattice QCD Simulation System on PC Cluster

Research Project

Project/Area Number 12554008
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 素粒子・核・宇宙線
Research InstitutionHIROSHIMA UNIVERSITY

Principal Investigator

NAKAMURA Atsushi  Hiroshima University, Information Media Center, Professor, 情報メディア教育研究センター, 教授 (30130876)

Co-Investigator(Kenkyū-buntansha) IKESAKA Morio  Fujitsu Laboratory, Senior Researcher, HPC研究センター, 主管研究員
HIOKI shinji  Tedukayama university, Faculty of Economy and Information Professor, 経営情報学部, 教授 (70238252)
SHOJI Fumiyoshi  Hiroshima University, Information Media Center, Assistant, 情報メディア教育研究センター, 助手 (60310504)
Project Period (FY) 2000 – 2002
KeywordsQCD / Fortarn90 / parallel code / PC cluster
Research Abstract

QCD (Quantum Chromo-Dynamics) is the theory of quarks and gluons. Numerical simulations of lattice QCD formulated by Wilson are the most powerful and reliable method to study QCD. Due to the fast development of computers, I.e., the price becomes lower and the speed increases rapidly, the lattice QCO simulations on PC cluster become possible, many researchers in elementary/nuclear physics are interested in the method.
Although many theoretical physicists in elementary particle and nuclear physics understand lattice QCD well, it is difficult for them to perform lattice QCD simulations, since it required many knowledge of numerical simulation techniques and long time. In this project wehlave developed an open source code of lattice QCD in Fortran 90. The code is called Lattice Tool Kit in Fortran90 (LTK f90) and can be found at
http://nio-mon.riise.hiroshirna-u.ac.jp/~LTK/
Thanks to the module in Fortran90, we can write programs which are similar to the algorithm and easy to understand. Because Fortran90 sometime depends on the compiler of the machine, we have prepared a user-manual, which can also be obtained on the above web.
We use MPI (Message Passing Interface) to parallelize the code,and then large lattice size simulations are possible.
MPI is the most effective way for parallel programming, but it is not so easy for non-specialist, and also a code with MPI can not be executed under non-MPI compiler. We are now developing a HPF (High Performance Fortran) version of LTK.

  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 中村純, 野中千穂, 室谷心, 和田浩明: "量子色力学並列シミュレーションのオープンソースの開発"計算工学講演会論文集. 8. 777-780 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Muroya, A.Nakamura, C.Nonaka: "Behavior of Hadrons at Finite Density"Physics Letter. B551. 305-310 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] O.Miyamura, S.Choe, Y.Liu, T.Takaishi, A.Nakamura: "Responses of quark condensates to the chemical potential"Physica Review. D66. 077502 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] A.Nakamura, I.Pushkina, T.Saito, S.Sakai: "Screening of hot gluon"Physics Letter. B549. 133-138 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 中村純, 日置慎治, 青山幸也: "並列処理でシミュレーション"別冊日経サイエンス 「シミュレーション科学への招待-コンピュータによる新しい科学」. 130. 26-33 (2002)

    • Description
      「研究成果報告書概要(和文)」より

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Published: 2004-04-14  

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