대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제30권11호
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  • Pages.1447-1454
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  • 2006
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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Lagrangian 기법에 의한 충돌 해석 시 접촉처리의 병렬화 및 병렬효율 평가

Parallel Contact Treatment and Parallel Performance of Impact Simulation Based on Lagrangian Scheme

  • 백승훈 (서울대학교 대학원 기계항공공학부) ;
  • 김승조 (서울대학교 기계항공공학부, 비행체특화센터) ;
  • 이민형 (세종대학교 기계항공우주공학부)
  • 발행 : 2006.11.01
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초록

The evaluation of parallel performance of a high speed impact simulation is not an easy task because not only the development of parallel explicit code is difficult but also a large number of processors is not easily accessible. In this paper, the parallel performance of a new Lagrangian FEM impact code carried out on cluster supercomputer has been described in high speed range. In the case of metal sphere impacting to oblique plate, the overall speed-up continuously increases even up to 128 CPUs. Investigation of elapsed time of each part reveals that most of the inefficiency comes from the load imbalance of contact.

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참고문헌

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