Relaxing Synchronization in Parallel Agent-Based Road Traffic Simulation

Author:

Xu Yadong1,Cai Wentong2,Aydt Heiko3,Lees Michael4,Zehe Daniel5

Affiliation:

1. Nanyang Technological University

2. Nanyang Technological University, Singapore

3. TUM CREATE Ltd, Singapore

4. University of Amsterdam, Science Park, Amsterdam

5. TUM CREATE Ltd, CREATE Way, Singapore

Abstract

Large-scale agent-based traffic simulation is computationally intensive. Parallel computing can help to speed up agent-based traffic simulation. Parallelization of agent-based traffic simulations is generally achieved by decomposing the road network into subregions. The agents in each subregion are executed by a Logical Process (LP). There are data dependencies between LPs which require synchronization of LPs. An asynchronous protocol allows LPs to progress and communicate asynchronously. LPs use lookahead to indicate the time to synchronize with other LPs. Larger lookahead means less frequent synchronization operations. High synchronization overhead is still a major performance issue of large-scale parallel agent-based traffic simulations. In this article, two methods to increase the lookahead of LPs for an asynchronous protocol are developed. They take advantage of uncertainties in traffic simulation to relax synchronization without altering simulation results statistically. Efficiency of the proposed methods is investigated in the parallel agent-based traffic simulator SEMSim Traffic. Experiment results showed that the proposed methods are able to reduce overall running time of the parallel simulation compared to existing methods.

Funder

Research Excellence And Technological Enterprise (CREATE) programme

Russian Scientific Foundation

Singapore National Research Foundation

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Science Applications,Modeling and Simulation

Reference37 articles.

1. Jaume Barceló Jaime L. Ferrer and David Garcia. 1998. Microscopic traffic simulation for ATT systems analysis. A parallel computing version. Contribution to the 25th Aniversary of CRT (1998) 1--16. Jaume Barceló Jaime L. Ferrer and David Garcia. 1998. Microscopic traffic simulation for ATT systems analysis. A parallel computing version. Contribution to the 25th Aniversary of CRT (1998) 1--16.

2. Modeling reaction time within a traffic simulation model

3. Car-following: a historical review

4. ROSS: a high-performance, low memory, modular time warp system

5. Uncertainty in traffic forecasts: literature review and new results for The Netherlands

Cited by 9 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. PATRIC: A high performance parallel urban transport simulation framework based on traffic clustering;Simulation Modelling Practice and Theory;2023-07

2. Simulating the Impact of Dynamic Rerouting on Metropolitan-scale Traffic Systems;ACM Transactions on Modeling and Computer Simulation;2023-02-28

3. Load Balancing Oriented Quick Partitioning Algorithm of Simulation Road Network for Parallel Traffic Systems;Lecture Notes in Electrical Engineering;2023

4. Politiques de synchronisation dans les systèmes multi-agents distribués parallèles;Revue Ouverte d'Intelligence Artificielle;2022-11-22

5. Current Trends in Road Traffic Network Division for Distributed or Parallel Road Traffic Simulation;2022 IEEE/ACM 26th International Symposium on Distributed Simulation and Real Time Applications (DS-RT);2022-09-26

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3