基于拥塞超前感知的NoC路由器设计

Design of NoC router based on advance congestion-aware

针对当前片上网络(NoC)在通讯流量较大时出现拥塞而引起的网络性能受限的问题,本文提出了一种向量引导的超前自适应(AdSa)路由算法,设计了一种基于拥塞超前感知的NoC路由器,通过超前感知网络拥塞进行自适应的路由传输,均衡网络负载.实验结果表明,搭载AdSa路由算法的拥塞感知路由器在平均包延时和平均吞吐量上,相较于搭载动态XY(Dy-XY)路由算法的路由器最大提升了31.2%和38.4%,相较于搭载回退转向(RT)路由算法的路由器最大提升了18%和19.5%,在高负载和大通信量NoC中具有更优的传输性能.

In view of the current network-on-chip(NoC)in the larger traffic congestion caused by the limited network performance problems,a vector-guided advanced self-adaptive(AdSa)routing algorithm is proposed,and a NoC router based on advance congestion-awareis designed.Awaring network congestion in advance for adaptive routing transmission and balancing network load.The experimental results show,the congestion-awared router equipped withAdSa routing algorithm has average packet delay and average throughputcompared with routers equipped withdynamic XY(Dy-XY)routing algorithm,the maximum increase is 31.2%and 38.4%,compared with routers equippedwith return(RT)routing algorithm,the maximum increase is 18%and 19.5%,which has better transmission performance in high load and large traffic NoC.