メガスケール環境シミュレータAnastasiaにおける詳細シミュレーション  [in Japanese] Detailed simulation in Megascale simulator Anastasia  [in Japanese]

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Abstract

我々は100万台規模のプロセッサを用いたメガスケールコンピューティングについての研究を進めている.同時に,その環境であるメガスケール環境を仮想的に提供するシミュレータAnastasiaを提案しており,本稿ではそのAnastasiaにおける詳細シミュレーションについて述べる.詳細シミュレーションでは実行シミュレーション方式をとり,高精度なメガスケール環境の再現を目指している.具体的には,シミュレーション対象のアプリケーションを実行し,その情報をもとにメガスケール環境を再現する.さらに,再現したメガスケール環境をアプリケーションにフィードバックすることで,高精度なシミュレーションが可能になる.モンテカルロ法で$?pi$を計算するアプリケーションを使用してシミュレータの精度を評価したところ,平均で7.7?%の誤差となり精度の高い詳細シミュレーションを行えることを示した.We are pursuing a research project on megascale computing in which more than one million processors are involved. Simultaneously, we propose a simulator named Anastasia, which provides a virtual megascale environment. This paper describes detailed simulation in megascale simulator Anastasia. In detailed simulation, we aim accurate megascale environment's behaviour by emulation. By running the object of simulation, we retrieve the information to reproduce the megascale environment. Furthermore, it is possible to get more accurate simulation by feedbacking the reproduced megascale environment into the application. To evaluate the validity of the time management and scheduling, we build a prototype of Anastasia and measured its timing accuracy with a simple parallel application executed on a virtual PC cluster. The result shows that the average time error between the virtual and real cluster is only 7.7\%.

We are pursuing a research project on megascale computing in which more than one million processors are involved. Simultaneously, we propose a simulator named Anastasia, which provides a virtual megascale environment This paper describes detailed simulation in megascale simulator Anastasia In detailed simulation, we aim accurate megascale environment's behaviour by emulation By running the object of simulation, we retrieve the information to reproduce the megascale environment. Furthermore, it is possible to get more accurate simulation by feedbacking the reproduced megascale environment into the application To evaluate the validity of the time management and scheduling, we build a prototype of Anastasia and measured its timing accuracy with a simple parallel application executed on avirtual PC cluster The result shows that the average time error between the virtual and real cluster is only 77%

Journal

  • IPSJ SIG Notes

    IPSJ SIG Notes 2003(83(2003-HPC-095)), 155-160, 2003-08-04

    Information Processing Society of Japan (IPSJ)

References:  9

Cited by:  2

Codes

  • NII Article ID (NAID)
    110002914086
  • NII NACSIS-CAT ID (NCID)
    AN10463942
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    09196072
  • NDL Article ID
    6683256
  • NDL Source Classification
    ZM13(科学技術--科学技術一般--データ処理・計算機)
  • NDL Call No.
    Z14-1121
  • Data Source
    CJP  CJPref  NDL  NII-ELS  IPSJ 
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