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CAS-ESM是中国科学院大气物理所开发的地球系统模式,是全球气候变化研究的重要工具,也是高性能计算在地球系统科学领域的重要应用。为了方便其他用户在“元”超级计算机上开展更高效的模拟实验,探究CAS-ESM在类似于“元”的体系结构计算机上的应用前景,分别设计并进行了大气分量模式AGCM和海洋分量模式LICOM分量模式最优处理器划分实验,保证耦合实验结果准确可靠。结果显示,AGCM在“元”上使用4*4、8*4、16*4、16*8、32*8、32*16的处理器划分能得到最佳的计算效率,LICOM在“元”上使用3*5、3*10、5*12、12*10、20*12、60*8的处理器划分,能在“元”上得到最佳的计算效率。最后设计并进行了耦合模拟实验,分析了CAS-ESM耦合模式的并行效率和浮点性能。
CAS-ESM is a model of Earth System developed by Institute of Atmospheric Physics of the Chinese Academy of Sciences and is an important tool for global climate change research. CAS-ESM is also an important application of high-performance computing in Earth System Science. In order to facilitate other users to carry out more efficient simulation experiments on the “Yuan ” supercomputer and explore the application prospect of CAS-ESM on a computer similar to “Yuan ”, the atmospheric component mode AGCM And ocean component mode LICOM component mode optimal processor partition experiments to ensure the coupling experiment results are accurate and reliable. The results show that AGCM can get the best computational efficiency by using 4 * 4, 8 * 4, 16 * 4, 16 * 8, 32 * 8, 32 * “Yuan ” on the use of 3 * 5,3 * 10,5 * 12,12 * 10,20 * 12,60 * 8 processor division, in the “yuan” to get the best calculation efficiency. Finally, a coupled simulation experiment was conducted and the parallel efficiency and floating point performance of CAS-ESM coupling mode were analyzed.