面向HPC和DC的可重构光互连网络体系结构综述

Review of reconfigurable optical interconnection network architecture for HPC and DC

互连网络是高性能计算系统和数据中心的核心组件之一,也是决定其系统整体性能的全局性基础设施。随着高性能计算、云计算和大数据技术的迅速发展,传统的电互连网络在性能、能耗和成本等方面无法满足高性能计算应用和数据中心业务的大规模可扩展通信需求,面临着严峻的挑战。为此,近年来相关研究者提出了多种面向高性能计算和数据中心的可重构的光互连网络结构。首先阐明了光互连网络相对于电互连网络的优势;然后介绍了几种典型的可重构光互连网络体系结构,并对其特点进行了分析比较;最后探讨了可重构光互连网络的发展趋势。

Interconnection network is one of the core components of high-performance computing systems and data centers,and it is also a global infrastructure that determines the overall performance of the systems.With the rapid development of high-performance computing,cloud computing and big data application technology,in order to meet the large-scale scalable communication requirements of high-performance computing and data center services,traditional electrical interconnection networks face severe challenges in terms of performance,energy consumption and cost.In recent years,researchers have proposed a variety of reconfigurable optical interconnection network architectures for high-performance computing systems and data centers.In this paper,the advantages of optical interconnection network over electrical interconnection network are described.Then,several typical reconfigurable optical interconnect network architectures are introduced,and their characteristics are analyzed and compared.Finally,the development trend of reconfigurable optical interconnect networks is discussed.