一种高吞吐低延迟片上互连网络路由器  

A High-throughpur Low-latency Router for On-chip Interconnect Networks

作　　者：李晋文[1] 申慧毅 齐树波[1] LI Jinwen;SHEN Huiyi;QI Shubo(School of Computer Science,National University of Defense Technology,Changsha 410073,China)

机构地区：[1]国防科技大学计算机学院,湖南长沙410073

出　　处：《湖南大学学报（自然科学版）》2023年第8期141-146,共6页Journal of Hunan University:Natural Sciences

基　　金：HPCL国家重点实验室基金项目(202101-02);国家自然科学基金资助项目(60873212)。

摘　　要：本文提出了一种用于片上互连网络的低延迟高吞吐量动态虚拟输出队列路由器,该路由器可以利用前瞻路由计算和虚拟输出队列方案将路由器延迟减低到两个周期.仿真结果表明,与虫孔路由器和虚通道路由器相比,4×4网格上的网络吞吐量分别提高了46.9%和28.6%,并且在相同输入加速比下,性能比双缓冲虚通道路由器要高1.9%.在随机合成流量下,片上网络的零负载延迟也分别降低了25.6%和41%.设计实现结果表明,路由器的工作频率可以达到2.5 GHz.A low-latency high-throughput Dynamic Virtual Output Queues Router for On-chip interconnect networks is proposed in this paper,which can reduce the router latency to two cycles by leveraging look-ahead routing computation and virtual output queues scheme.The simulation results show that,compared with the wormhole router and virtual-channel router,the network throughput on a 4×4 mesh increases by up to 46.9%and 28.6%,respectively,and outperforms doubled buffer virtual channel by 1.9%under the same input speedup.Under random synthetic traffic,the zero-load-latency of the network on chip is also reduced by 25.6%and 41%,respectively.Synthesis results indicate the frequency of router can reach 2.5 GHz.

关 键 词：片上网络 路由器 吞吐量 延迟 

分 类 号：TN913.3[电子电信—通信与信息系统]