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

doi:10.1109/TPDS.2022.3231013

	AGCM-3DLF: Accelerating Atmospheric General Circulation Model via 3-D Parallelization and Leap-Format
	Cao, Hang 1,2; Yuan, Liang 1; Zhang, He 3; Zhang, Yunquan 1; Wu, Baodong 4; Li, Kun 1,2; Li, Shigang 5; Zhang, Minghua 6; Lu, Pengqi 1,2; Xiao, Junmin 1
	2023-03-01
发表期刊	IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS
ISSN	1045-9219
卷号	34 期号:3 页码:766-780
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.
关键词	Atmospheric general circulation model 3-D decomposition leap-format finite-difference heterogeneous acceleration
DOI	10.1109/TPDS.2022.3231013
收录类别	SCI
语种	英语
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
WOS类目	Computer Science, Theory & Methods ; Engineering, Electrical & Electronic
WOS记录号	WOS:000912403900001
出版者	IEEE COMPUTER SOC
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/20071
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 Comp Technol, Beijing 100045, Peoples R China 2.Univ Chinese Acad Sci, Beijing 101408, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, Earth Syst Numer Simulat Sci Ctr, Beijing 101408, Peoples R China 4.Sensetime Res, Beijing 100080, Peoples R China 5.Beijing Univ Posts & Telecommun, Sch Comp Sci, Beijing 100876, Peoples R China 6.Chinese Acad Sci, Inst Atmospher Phys, Beijing 101408, 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.