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

ZHUANG Zhanpeng; YUAN Yeli; ZHANG Jie; HAN Lei; YANG Jungang

doi:10.1007/s13131-016-0855-4

Volume 35 Issue 5

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Article Navigation > Acta Oceanologica Sinica > 2016 > 35(5): 18-23

ZHUANG Zhanpeng, YUAN Yeli, ZHANG Jie, HAN Lei, YANG Jungang. An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme[J]. Acta Oceanologica Sinica, 2016, 35(5): 18-23. doi: 10.1007/s13131-016-0855-4

Citation:

ZHUANG Zhanpeng, YUAN Yeli, ZHANG Jie, HAN Lei, YANG Jungang. An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme[J]. Acta Oceanologica Sinica, 2016, 35(5): 18-23. doi: 10.1007/s13131-016-0855-4

Citation:

ZHUANG Zhanpeng, YUAN Yeli, ZHANG Jie, HAN Lei, YANG Jungang. An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme[J]. Acta Oceanologica Sinica, 2016, 35(5): 18-23. doi: 10.1007/s13131-016-0855-4

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

doi: 10.1007/s13131-016-0855-4

1.
College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266100, China;The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China
2.
The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China

Received Date: 2015-04-11
Rev Recd Date: 2015-09-25

Abstract

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.
- irregular rectangle decomposition scheme,
- message passing interface (MPI),
- neighboring point exchange strategy,
- data communication

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References

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