高性能互连网络拓扑研究综述
作者:
作者单位:

国防科技大学 计算机学院, 湖南 长沙 410073

作者简介:

董德尊(1980—),男,黑龙江五常人,研究员,博士,博士生导师,E-mail:dong@nudt.edu.cn

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中图分类号:

TP303

基金项目:

国家自然科学基金创新群体资助项目(62421002);国家自然科学基金联合基金重点资助项目(U24B20151);国家重点研发计划资助项目(2022YFB45017202)


Survey on topology of high-performance interconnection networks
Author:
Affiliation:

College of Computer Science and Technology, National University of Defense Technology, Changsha 410073 , China

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    摘要:

    高性能互连网络是决定超算与智算系统可扩展性的关键因素之一。拓扑是互连网络可扩展性设计的核心。拓扑设计既要考虑应用与软硬件系统等宏观设计需求,也要考虑路由器芯片端口数、虚拟通道数量、封装密度等多种制约因素。本文较为系统地分析总结了学术和工业界的重要拓扑结构,并对有代表性的新型拓扑进行了详细阐述;分析了自适应路由在高阶网络中的设计难点,对比了典型拓扑的性能和成本,并讨论了选型建议;初步探讨了未来拓扑设计的挑战与发展趋势,包括从智算应用特点出发针对性地设计高性价比的网络拓扑、供电制约的拓扑设计需要拓扑和大楼供电能力的配合、超节点内外网络拓扑的融合与协同设计等。

    Abstract:

    High-performance interconnection networks are among the key factors determining the scalability of supercomputing and intelligent computing systems. Topology serves as the core of scalability-oriented interconnection network design. The design of topology must not only address macro-level requirements from applications and hardware-software systems, but also consider multiple constraints such as router chip port count, number of virtual channels, and packaging density. Significant topological structures from both academia and industry were systematically analyzed and summarized, and a detailed exposition of representative novel topologies was provided. The design challenges of adaptive routing in high-radix networks were examined, the performance and cost of typical topologies were compared, and recommendations for topology selection were discussed. Furthermore, it preliminarily explored future challenges and trends in topology design, including developing cost-effective network topologies tailored to the characteristics of intelligent computing applications, coordinating topology design with building power supply constraints, and integrating and co-designing intra-and inter-supernode network topologies.

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董德尊, 王梓宇, 雷斐. 高性能互连网络拓扑研究综述[J]. 国防科技大学学报, 2026, 48(2): 266-283.

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  • 收稿日期:2025-11-25
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  • 在线发布日期: 2026-04-08
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