Technology of Network & Communication
|
3754-3759

Partially synchronous communication strategy based on Local SGD

Wei Yeming
Zheng Meiguang
Dept. of Computer Science & Engineering, Central South University, Changsha 410018, China

Abstract

Local SGD is used in distributed machine learning to alleviate communication bottleneck. However, it increases the time gap between heterogeneous cluster workers in local computation with the characteristics of local multi-round iteration, which bring about large synchronization wait time and the problem of stale parameters. Regarding the above problems, based on the Local SGD algorithm, this paper proposed a dynamic partial synchronization communication method(LPSP). This method made full use of the advantage of Local SGD with two-layer decision. After each worker finished each epoch of local gradient calculation, it determined its communication possibility based on local training situation. And parameter server divided the synchronization worker sets to minimize the synchronization wait time. Based on above strategies, it reduced the communication overhead of Local SGD method and effectively controlled the negative influence of straggler. Experiments show that LPSP can achieve up to 0.75 to 1.26 times acceleration without loss of training accuracy, and up to 5.14% accuracy improvement, which can effectively speed up the convergence of model training.

Foundation Support

国家自然科学基金资助项目(62172442)
湖南省自然科学基金青年科学基金资助项目(2020JJ5775)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2023.04.0160
Publish at: Application Research of Computers Printed Article, Vol. 40, 2023 No. 12
Section: Technology of Network & Communication
Pages: 3754-3759
Serial Number: 1001-3695(2023)12-036-3754-06

Publish History

[2023-08-10] Accepted Paper
[2023-12-05] Printed Article

Cite This Article

魏业鸣, 郑美光. 基于Local SGD的部分同步通信策略 [J]. 计算机应用研究, 2023, 40 (12): 3754-3759. (Wei Yeming, Zheng Meiguang. Partially synchronous communication strategy based on Local SGD [J]. Application Research of Computers, 2023, 40 (12): 3754-3759. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

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