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An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme

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Abstract

A parallel algorithm of circulation numerical model based on message passing interface (MPI) is developed using serialization and an irregular rectangle decomposition scheme. Neighboring point exchange strategy (NPES) is adopted to further enhance the computational efficiency. Two experiments are conducted on HP C7000 Blade System, the numerical results show that the parallel version with NPES (PVN) produces higher efficiency than the original parallel version (PV). The PVN achieves parallel efficiency in excess of 0.9 in the second experiment when the number of processors increases to 100, while the efficiency of PV decreases to 0.39 rapidly. The PVN of ocean circulation model is used in a fine-resolution regional simulation, which produces better results. The capability of universal implementation of this algorithm makes it applicable in many other ocean models potentially.

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Authors and Affiliations

  1. College of Physical and Environmental Oceanography, Ocean University of China, Qingdao, 266100, China

    Zhanpeng Zhuang

  2. The First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, China

    Zhanpeng Zhuang, Yeli Yuan, Jie Zhang, Lei Han & Jungang Yang

Authors
  1. Zhanpeng Zhuang
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  2. Yeli Yuan
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  3. Jie Zhang
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  4. Lei Han
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  5. Jungang Yang
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Corresponding author

Correspondence to Zhanpeng Zhuang.

Additional information

Foundation item: The National High Technology Research and Development Program (863 Program) of China under contract No. 2013AA09A505.

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Zhuang, Z., Yuan, Y., Zhang, J. et al. An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme. Acta Oceanol. Sin. 35, 18–23 (2016). https://doi.org/10.1007/s13131-016-0855-4

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  • DOI: https://doi.org/10.1007/s13131-016-0855-4

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