一种计算互连融合网络体系结构

A fusion network architecture for computing and interconnection

提出一种计算互连融合体系结构FCI,以片内互连形式直接将计算内核和网络接口通过互连总线集成至计算内核中。FCI中设计了具有单周期转发特征的XBAR结构,只需多个输入端口报文之间没有冲突发生便能实现单周期转发操作,适应于各类路由算法与流量负载,对系统中的网络链路层进行了设计,用以实现报文的可靠传输,并在高速串口中设计了一种用于物理编码子层的加扰方法及装置,用于增加码率扰动,以提高信号传输质量并减少信号传输延迟。测试结果显示,相对于传统的经由PCIe相连的互连系统,FCI结构在通信带宽上提升了约30%,而在延迟上则降低了约16.7%,具备高带宽、低延迟等优点,可为实现网络与计算深度融合及高密度互连系统提供切实可行的方案。

A fusion network architecture for computing and interconnection(FIC)is proposed,which integrates the network interface into the processor core via interconnection bus.In FCI,the XBAR structure with the characteristic of single-cycle forwarding is first designed,so long as the absence of the packet confliction,which is suitable for diverse routing algorithms and traffic workload.Secondly,the link layer protocol is designed for the packet reliability transmission,and the scramble coding measure is designed for the PCS in order to enhance the signal transmission quality and reduce the latency by increasing the bitrate disturbance.Experimental results show that,compared with the traditional network interconnected by PCI-E,FCI can improve the bandwidth by 30%and reduce the transmission latency by 16.7%.FIC possesses the advantages of high bandwidth and low latency,and can provide the deep-fused interconnection network system with a feasible solution.