An effective communication topology for performance optimization: a case study of the finite-volume wave modeling (FVWAM)

doi:10.5194/gmd-18-4119-2025

	An effective communication topology for performance optimization: a case study of the finite-volume wave modeling (FVWAM)
	Pang, Renbo 1,2,3; Yu, Fujiang 1,2,3; Gao, Yuanyong 1; Yuan, Ye 1,2,3; Yuan, Liang 4; Gao, Zhiyi 1
	2025-07-08
发表期刊	GEOSCIENTIFIC MODEL DEVELOPMENT
ISSN	1991-959X
卷号	18 期号:13 页码:4119-4136
摘要	High-resolution models are essential for simulating small-scale processes and topographical features, which play a crucial role in understanding meteorological and oceanic events, as well as climatic patterns. High-resolution modeling requires substantial improvement to the parallel scalability of the model to reduce runtime, while massive parallelism is associated with intensive communications. Point-to-point communication is extensively utilized for neighborhood communication in Earth models due to its flexibility. The distributed graph topology, first introduced in the message-passing interface (MPI) version 2.2, provides a scalable and informative communication method. It has demonstrated significant speedups over the point-to-point communication method based on a variety of synthetic and real-world communication graph datasets. But its application to Earth models for neighborhood communication is rarely studied. In this study, we implemented neighborhood communication using both the traditional point-to-point communication method and the distributed graph communication topology. We then compare their performance in a case study using the finite-volume wave modeling (FVWAM), including both small-scale regional and large-scale global experiments. Based on the Intel MPI library, the distributed graph topology outperforms the point-to-point communication method for inter-node communication with 32 to 32 768 processes. For small-scale regional experiments with 32 to 512 processes, compared to the point-to-point method, the distributed graph topology achieved an average communication time speedup ranging from 4.78 to 11.67. For operational global wave forecasts with 1024 processes, the runtime of the FVWAM was reduced by 40.2 % when the point-to-point communication method was replaced by the distributed graph communication topology.
DOI	10.5194/gmd-18-4119-2025
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2023YFC3107801]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001523714100001
出版者	COPERNICUS GESELLSCHAFT MBH
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/42015
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Pang, Renbo; Yu, Fujiang; Gao, Yuanyong
作者单位	1.Natl Marine Environm Forecasting Ctr, 8 Dahuisi Rd, Beijing 100081, Peoples R China 2.Natl Marine Environm Forecasting Ctr, State Key Lab Satellite Ocean Environm Dynam, 8 Dahuisi Rd, Beijing 100081, Peoples R China 3.Minist Nat Resources China, Key Lab Res Marine Hazard Forecasting, 8 Dahuisi Rd, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Comp Technol, 6 Kexueyuan Nanlu, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Pang, Renbo,Yu, Fujiang,Gao, Yuanyong,et al. An effective communication topology for performance optimization: a case study of the finite-volume wave modeling (FVWAM)[J]. GEOSCIENTIFIC MODEL DEVELOPMENT,2025,18(13):4119-4136.
APA	Pang, Renbo,Yu, Fujiang,Gao, Yuanyong,Yuan, Ye,Yuan, Liang,&Gao, Zhiyi.(2025).An effective communication topology for performance optimization: a case study of the finite-volume wave modeling (FVWAM).GEOSCIENTIFIC MODEL DEVELOPMENT,18(13),4119-4136.
MLA	Pang, Renbo,et al."An effective communication topology for performance optimization: a case study of the finite-volume wave modeling (FVWAM)".GEOSCIENTIFIC MODEL DEVELOPMENT 18.13(2025):4119-4136.