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2012 Fiscal Year Final Research Report

Detection of miscalculation caused by precision degradation

Research Project

  • PDF
Project/Area Number 22500051
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Computer system/Network
Research InstitutionHiroshima City University

Principal Investigator

KITAMURA Toshiaki  広島市立大学, 情報科学研究科, 教授 (10324683)

Project Period (FY) 2010 – 2012
Keywords計算機アーキテクチャ / 演算精度低下検出 / 長精度計算
Research Abstract

To achieve the efficient accuracy degradation detection on floating point number calculation, we developed a vector co-processor that has two or more floating-point arithmetic units with accuracy degradation detection function. And we investigatedthat it worked correctly. Moreover, we compared the number of execution cycles of the workload, which actually causes accuracy degradation, with a conventional processor. Because our vector processor can execute by about 1/5 number of execution cycles, we can practically use this system as a prototype system.

  • Research Products

    (7 results)

All 2013 2012 2011 Other

All Journal Article (3 results) Presentation (3 results) Remarks (1 results)

  • [Journal Article] SIMD命令セットを用いた浮動小数点演算における精度低下検出2013

    • Author(s)
      安仁屋宗石, 吉田浩章, 伴野充, 北村俊明
    • Journal Title

      情報処理学会 研究報告「計算機アーキテクチャ(ARC)」

      Volume: 2013-ARC-205(14) Pages: 1-7

  • [Journal Article] 計算精度低下を検出する PC エミュレータの開発2011

    • Author(s)
      松田稔彦, 北村俊明
    • Journal Title

      情報処理学会 研究報告「計算機アーキテクチャ(ARC)」

      Volume: 2011-ARC-197(24) Pages: 1-6

  • [Journal Article] 精度低下検出を行う浮動小数点演算器の検討と評価

    • Author(s)
      金子啓太, 北村俊明
  • [Presentation] Performance Improvement for FloatingPoint Arithmetic Unit with Precision Degradation Detection2012

    • Author(s)
      Soseki Aniya, Toshiaki Kitamura
    • Organizer
      The 17th Workshop on Synthesis And System Integration of Mixed Information Technologies (SASIMI 2012)
    • Place of Presentation
      B-Conプラザ(大分県別府市)
    • Year and Date
      2012-03-09
  • [Presentation] 計算精度低下を検出する PC エミュレータの開発2011

    • Author(s)
      松田稔彦, 北村俊明
    • Organizer
      電気・情報関連学会中国支部第60回連合大会
    • Place of Presentation
      広島工業大学
    • Year and Date
      2011-10-22
  • [Presentation] Evaluation of floating-point arithmetic unit with precision degradation detection2011

    • Author(s)
      Keita Kaneko, Toshiaki Kitamura
    • Organizer
      16th Asia and South Pacific Design Automation Conference, Student Forum
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2011-01-27
  • [Remarks]

    • URL

      http://www.csl.info.hiroshima-cu.ac.jp

URL: 

Published: 2014-08-29  

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