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Korean Meteorological Society (한국기상학회)
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Hybrid Parallelization for High Performance of CFD_NIMR Model

기상 모델 CFD_NIMR의 최적 성능을 위한 혼합형 병렬 프로그램 구현

  • Kim, Min-Wook (Applied Meteorology Research Division, National Institute of Meteorological Research) ;
  • Choi, Young-Jean (Applied Meteorology Research Division, National Institute of Meteorological Research) ;
  • Kim, Young-Tae (Department of Computer Science & Engineering, Gangneung-Wonju National University)
  • 김민욱 (국립기상연구소 응용기상연구과) ;
  • 최영진 (국립기상연구소 응용기상연구과) ;
  • 김영태 (강릉원주대학교 컴퓨터공학과)
  • Received : 2011.10.31
  • Accepted : 2011.12.21
  • Published : 2012.03.31
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Abstract

We parallelized the CFD_NIMR model, which is a numerical meteorological model, for best performance on both of distributed and shared memory parallel computers. This hybrid parallelization uses MPI (Message Passing Interface) to apply horizontal 2-dimensional sub-domain out of the 3-dimensional computing domain for distributed memory system, as well as uses OpenMP (Open Multi-Processing) to apply vertical 1-dimensional sub-domain for utilizing advantage of shared memory structure. We validated the parallel model with the original sequential model, and the parallel CFD_NIMR model shows efficient speedup on the distributed and shared memory system.

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References

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