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基于芯粒架构的通信拓扑结构研究:进展与挑战

Research on Communication Topologies for Chiplet Architecture: Progress and Challenges

  • 摘要: 基于芯粒(Chiplet)的多芯片集成设计为超越传统系统级芯片的单片集成提供了一种灵活且可扩展的解决方案。然而,Chiplet间的通信已成为制约多芯片集成系统整体性能的瓶颈之一。在此背景下,中介层上网络(network on interposer,NoI)在多芯片系统中发挥着至关重要的作用,直接影响多芯片集成系统的性能和开发成本。本文综述了基于Chiplet的NoI通信拓扑结构,深入探讨了当前Chiplet间通信架构的设计和实现方法,涵盖了从协议层、接口层到应用层的完整通信过程,不仅基于互连拓扑的形状进行了分类,还对每个类别进行了详细分析和交叉比较。此外,本文还探讨了芯片间通信技术的未来发展方向,强调了技术挑战和潜在解决方案,并重点分析总结了基于工作负载导向的可重用中介层和拓扑设计的重要性,旨在为研究人员梳理NoI技术现状并展望NoI技术的未来发展趋势。

     

    Abstract: Chiplet-based multi-chip integration designs provide a flexible and scalable solution that surpasses traditional system on chip monolithic integration. However, inter-Chiplet communication has become a significant bottleneck affecting overall system performance. The network on interposer plays a pivotal role in multi-chip systems, directly influencing both performance and development costs. This paper reviews the communication topologies of Chiplet-based network on interposer structures and delves into the design and implementation methods of current inter-Chiplet communication architectures. It comprehensively covers the communication process from protocol, interface, to application layers, classifying interconnect topologies based on structural configurations, and providing in-depth analyses and cross-comparisons for each category. Additionally, this paper explores the future directions of inter-Chiplet communication technologies, emphasizing technical challenges and potential solutions, and highlights the importance of workload-oriented, reusable interposer layers and topology design. This review aims to provide researchers with a comprehensive overview of the current state of network on interposer technology while simultaneously forecasting its development trends in future multi-chip integrated systems, offering systematic insights to advance frontier research in semiconductor technologies.

     

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