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AGCM-3DLF: Accelerating Atmospheric General Circulation Model via 3-D Parallelization and Leap-Format

文献类型：期刊论文

作者Cao, Hang5,6; Yuan, Liang6; Zhang, He4; Zhang, Yunquan6; Wu, Baodong3; Li, Kun5,6; Li, Shigang2; Zhang, Minghua1; Lu, Pengqi5,6; Xiao, Junmin6
刊名IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
出版日期2023-03-01
卷号34期号:3页码:766-780
ISSN号1045-9219
关键词Atmospheric general circulation model 3-D decomposition leap-format finite-difference heterogeneous acceleration
DOI10.1109/TPDS.2022.3231013
英文摘要The atmospheric general circulation model (AGCM) has been an important research tool in the study of climate change for decades. As the demand for high-resolution simulation is becoming urgent, the scalability and simulation efficiency is faced with great challenges, especially for the latitude-longitude mesh-based models. In this paper, we propose a highly scalable 3-D atmospheric general circulation model based on leap-format, namely AGCM-3DLF. First, it utilizes a 3-D decomposition method allowing for parallelism release in all three physical dimensions. Then the leap-format difference computation scheme is adopted to maintain computational stability in grid updating and avoid additional filtering at the high latitudes. A novel shifting window communication algorithm is designed for parallelization of the unified model. Furthermore, a series of optimizations are conducted to improve the effectiveness of large-scale simulations. Experiment results in different platforms demonstrate good efficiency and scalability of the model. AGCM-3DLF scales up to the entire CAS-Xiandao1 supercomputer (196,608 CPU cores), attaining the speed of 11.1 simulation-year-per-day (SYPD) at a high resolution of 25KM. In addition, simulations conducted on the Sunway TaihuLight supercomputer exhibit a 1.06 million cores scalability with 36.1% parallel efficiency.
资助项目National Key R&D Program of China[2016YFB0200803] ; National Natural Science Foundation of China[61972376] ; National Natural Science Foundation of China[62072431] ; National Natural Science Foundation of China[62032023] ; National Natural Science Foundation of China[62172391] ; National Key Scientific and Technological Infrastructureproject Earth System Science Numerical Simulator Facility
WOS研究方向Computer Science ; Engineering
语种英语
出版者IEEE COMPUTER SOC
WOS记录号WOS:000912403900001
源URL[http://119.78.100.204/handle/2XEOYT63/20070]  
专题中国科学院计算技术研究所期刊论文
通讯作者Yuan, Liang
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, Beijing 101408, Peoples R China
2.Beijing Univ Posts & Telecommun, Sch Comp Sci, Beijing 100876, Peoples R China
3.Sensetime Res, Beijing 100080, Peoples R China
4.Chinese Acad Sci, Inst Atmospher Phys, Earth Syst Numer Simulat Sci Ctr, Beijing 101408, Peoples R China
5.Univ Chinese Acad Sci, Beijing 101408, Peoples R China
6.Chinese Acad Sci, Inst Comp Technol, Beijing 100045, Peoples R China
推荐引用方式
GB/T 7714		 Cao, Hang,Yuan, Liang,Zhang, He,et al. AGCM-3DLF: Accelerating Atmospheric General Circulation Model via 3-D Parallelization and Leap-Format[J]. IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS,2023,34(3):766-780.
APA Cao, Hang.,Yuan, Liang.,Zhang, He.,Zhang, Yunquan.,Wu, Baodong.,...&Xiao, Junmin.(2023).AGCM-3DLF: Accelerating Atmospheric General Circulation Model via 3-D Parallelization and Leap-Format.IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS,34(3),766-780.
MLA Cao, Hang,et al."AGCM-3DLF: Accelerating Atmospheric General Circulation Model via 3-D Parallelization and Leap-Format".IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 34.3(2023):766-780.

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来源：计算技术研究所

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