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Study of Massively Parallel Processing System using a Number of Competing Processors and Its implementation

Research Project

Project/Area Number 03680033
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field Informatics
Research InstitutionThe University of TOKUSHIMA

Principal Investigator

TAKAHASHI Yoshizo  The University of TOKUSHIMA, Information Science and Intelligent Systems, Professor, 工学部, 教授 (90116830)

Project Period (FY) 1991 – 1993
Project Status Completed (Fiscal Year 1993)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1993: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1992: ¥200,000 (Direct Cost: ¥200,000)
Fiscal Year 1991: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywordsmassively parallel computer / parallel processing / competing processors / wire routing problem / character recognition / character structure knowledge / conflict resolution / multi-agent
Research Abstract

(1) After having studied the requirements for the interconnection network that can be used to develop a massively parallel computer systems to be constructed from several thousands of processors, we are convinced that the fat-tree is one of the most promising architectures. Although fat-tree is already famous as it is used in CM-5, the most important non-blocking feature of the fat tree is dismissed there. Therefore we have investigated the problems to resolved to realize the complete fat tree, and introduced a new scheme in decreasing the number of switches in the router. A prototype fat tree machine consisting of 4 processing element and 2 routers, which is developed on field programmable gate array device, is built to evaluate the performance. The date transfer rate of several mega bytes per seconds is obtained, and convinced us the element could be employed for real scale interconnection network.
(2) As a typical application of competing processor algorithm, the parallel solution of … More the automated wire-routing problem has been studied. Although quite satisfactory speedup is obtainable by the competing processor algorithm, the quality of the solution, that is, the wiring rate is less than the conventional sequential router. Therefore the problem is how to improved the quality of the solution by parallel computation. We have added the rip-up process to the competing processor wire routing algorithm, and obtained a significant improvement in the wiring rate. However, the rip-up procedure causes the increase in the computation time considerably, and we are led to the multipin net problem. Multipin net is a set of wires connected at the pin. If this net is replaced by the Steiner tree, which is a set of wires connected both at the pin and the wire, a significant improvement on the wiring rate is expected. We have developed the basic parallel algorithm for constructing a Steiner tree from the multipin network.
(3) The study of applying the competing processor algorithm to the hand-written Kanji character recognition is continued. In this year the knowledgebase for 30 representative Kanji character patterns was built and the recognition experiment was performed. In this experiment a character pattern taken from the ETL8B Kanji charter pattern database are first analyzed by the character structure analyzer and the extracted structural features are presented to 30 agents representing different character categories, which simultaneously find correspondence of each strokes using knowledgebase, and then attempts to match the presented stroke features with those in their individual database. If more than one agents recognize that the presented pattern belongs to their category, the conflict takes place. The agents in conflict compare the rules they have used or not used in the reasoning with each other and the agent which has used the deepest knowledge wins. In this experiment we have obtained almost 98% of recognition rate which is quite satisfactory. Less

Report

(4 results)
  • 1993 Annual Research Report   Final Research Report Summary
  • 1992 Annual Research Report
  • 1991 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] 佐野雅彦,高橋義造: "プロセッサ競合方式による並列配線処理-引き剥し処理による品質改善" 並列処理シンポジウムJSSP'93論文集. 331-338 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 佐野雅彦,高橋義造: "プロセッサ競合方式による並列自動配線〜品質改善の試み〜" DAシンポジウム'93論文集. 181-184 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Yoshizo Takahashi,Hitotoshi Murakami: "Conflict Resolution Procedure in Massively Parallel Pattern Recognition Systems" ParCo'93 Proceedings(to appear). (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 佐々木一陽,高橋義造: "画素の対応関係に基づく超並列処理向き手書き漢字認識" 電子情報通信学会技術研究報告. DRU92-106. 29-36 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 佐野雅彦,高橋義造: "Multi-pin-netの引き剥しを考慮した並列配線処理" 情報処理学会研究報告. 93-AL-34. 17-24 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 広田勝久,岩本邦生,高橋義造: "無閉塞通信経路を実現できる相互結合網FAT TREEとその実現方式" 電子情報通信学会技術研究報告. CPSY93-24. 89-96 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Masahiko Sano, Yoshizo Takahashi: "Performance Comparison of the Shared and the Distributed Memory Multiprocessors with parallel Wire-Routing Problem." Proc.of Joint Symposium on Parallel Processing. 197-204 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Masahiko Sano, Yoshizo Takahashi: "Performance Evaluation of Parallel Wire-Routing on the Shared and the distributed Parallel Computers" Trans.IPSJ. Vol.33, No.1. 369-377. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Yoshizo Takahashi, Masahiko Sano: "Parallel Computing with a Number of Competing processors" Parallel Computing'91, Elsvier Science Publishers. 339-346 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Masahiko Sano, Yoshizo Takahashi: "Parallel Wire-Routing by Competing Processors-Quality Improvements by Rip up" proc. of Joint Symposium on Parallel Processing. 331-338 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Masahiko Sano, Yoshizo Takahashi: "Parallel Wire-Routing by competing Processors-Methods for Quality Improvements" Proc.of Design Automation Symposium'93. 181-184 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Yoshizo Takahashi, Hitotoshi Murakami: "Conflict Resolution Procedure in Massively Parallel Multi-Agent Pattern Recognition Systems" ParCo'93 Proceedings. (to appear). (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] 佐野雅彦,高橋義造: "プロセッサ競合方式による並列配線処理-引き剥し処理による品質改善-" 並列処理シンポジウムJSSP'93論文集. 331-338 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 佐野雅彦,高橋義造: "プロセッサ競合方式による並列自動配線-品質改善の試み-" DAシンポジウム'93論文集. 181-184 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] Y.Takahashi,H.Murakami: "Conflict Resolution Procedure in Massively Parallel Multi-Agent Pattern Recognition Systems" ParCo'93 Proceedings. (to appear). (1994)

    • Related Report
      1993 Annual Research Report
  • [Publications] 佐々木一陽,高橋義造: "画素の対応関係に基づく超並列処理向き手書き漢字認識" 電子情報通信学会.技術研究報告. PRU92-106. 29-36 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 佐野雅彦,高橋義造: "Multi-pin netの引き剥しを考慮した並列配線処理" 情報処理学会研究報告. 93-AL-34. 17-24 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 広田勝久,岩本邦生,高橋義造: "無閉塞通信経路を実現できる相互結合網FAT-FREEとその実現方式" 電子情報通信学会技術研究報告. CPSY93-24. 89-96 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] 佐野 雅彦.高橋 義造: "分散メモリ型と共有メモリ型マルチプロセッサによる並列配線処理の惟能評価" 情報処理学会論文誌. 33. 369-377 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Y.Takahashi, M.Sano: "Parallel Computing with a Number of Competing Processors" Proc. of International Conference on Parallel Computing '91, London,1991. 339-346 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 加納 卓也,広田 勝久,藤木 茂訓.A.Flaucle,高橋 義造: "階層構造をもつ分散メモリ型超並列計算機‐MANDALAの設計" 情報処理学会研究報告 92-ARC-95. 92-64. 81-88 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 佐藤 雅彦,岡 圭司,高橋 義造: "プロセッサ競合方式による並列自動配線-ランダム引き剥がし法" 情報処理学会研究報告 92-NA-42. 92-66. 33-40 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 佐々木 一陽,高橋 義造: "輪郭特徴を基にした手書き漢字記識システムのSIMD計算機による実現" 情報処理学会研究報告 92-NA-42. 92-66. 41-48 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 村上 仁利,高橋 義造: "筆順に基づく漢字構造知識を用いる超並列向き手書き漢字記識方式" 情報処理学会研究報告 92-ARC-97. 92-97. 49-56 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 佐野 雅彦,高橋 義造: "分散メモリ型と共有メモリ型マルチプロセッサによる並列配線処理の性能比較" 並列処理シンポジウム JSSP'91論文集. 197-204 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Takahashi,Y.,Sano,M.: "Parallel Computing with a Number of Competing Processors" Abstract of Parallel Computing 91. 9B HW IV (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Flavel,A.,Kanoh,T.,Fujimoto,S.,Takahashi,Y.: "Mandala:An Interconnection Network for a Massively Parallel Computer." 情報処理学会研究報告91ーARCー91. Vol91,No100. 102-109 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 高橋 義造,宮本 直樹: "Prologの並列処理方式" 情報処理学会研究報告91ーSYMー61. Vol91.No78. 1-8 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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