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Comparison and Analysis between Two Types of Sounding Data of China
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作者 陈哲 臧海佳 《Agricultural Science & Technology》 CAS 2009年第6期175-177,共3页
The upper air weather forecast data used in current business and research and digital data of the recently finished upper air meteorological monthly report were comparatively analyzed in complete data and quality cond... The upper air weather forecast data used in current business and research and digital data of the recently finished upper air meteorological monthly report were comparatively analyzed in complete data and quality condition of data, and sounding curve change caused by the difference of complete data was also compared, which evaluated advantages and disadvantages of two types of data. 展开更多
关键词 SOUNDING Coded messages for upper-level data Monthly tables of sounding
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An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme
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作者 ZHUANG Zhanpeng YUAN Yeli +2 位作者 ZHANG Jie HAN Lei YANG Jungang 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2016年第5期18-23,共6页
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... 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. 展开更多
关键词 irregular rectangle decomposition scheme message passing interface(MPI) neighboring point exchange strategy data communication
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