전자공학회논문지CI (Journal of the Institute of Electronics Engineers of Korea CI)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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MPI 기반 PC 클러스터에서 GHT의 병렬 분산 구현

Parallel Distributed Implementation of GHT on MPI-based PC Cluster

  • 김영수 (영남이공대학 컴퓨터정보계열) ;
  • 김정삼 (영남이공대학 컴퓨터정보계열) ;
  • 최흥문 (경북대학교 전자전기컴퓨터학부)
  • Kim, Yeong-Soo (Div. of Computer Information, Yeungnam College of Science & Technology) ;
  • Kim, Jeong-Sahm (Div. of Computer Information, Yeungnam College of Science & Technology) ;
  • Choi, Heung-Moon (School of Electrical Engineering & Computer Science, Kyungpook National University)
  • 발행 : 2007.05.25
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초록

MPI(message passing interface) 기반 PC 클러스터 상에서 병렬분산 GHT(generalized Hough transform)를 모델화하고 시간 분석하여 고속화 구현하였다. 파이프라인 방송(pipelined broadcast) 통신방식과 누산기 배열(accumulator array) 분할 처리정책을 사용함으로써 통신부담을 최대한 줄였고, 전체 처리 과정에 걸쳐 통신과 계산처리를 시간 중첩시켜 구현함으로써 최대한의 속도제고를 하였다. 100 Mbps Ethernet 스위치를 이용하여 MPI 기반 PC 클러스터를 구현하고 제안한 병렬분산 GHT를 실험하여 선형에 가까운 속도 제고율 (speedup)을 확인하였다.

This paper presents a parallel distributed implementation of the GHT (generalized Hough transform) for the fast processing on the MPI-based PC cluster. We tried to achieve the higher speedup mainly by alleviating the communication overhead through the pipelined broadcast and accumulator array partition strategy and by time overlapping of the communication and the computation over entire process. Experimental results show that nearly linear speedup is reachable by the proposed method on the MPI-based PC clusters connected through 100Mbps Ethernet switch.

키워드

참고문헌

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