基于偏折路由的双环片上网络

Deflection routing based bi-ring network on chip

为了降低中等规模的片上网络设计复杂度,提高网络效率,提出了一种基于偏折路由的双环片上网络结构,研究了其冲突解决机制,给出了一种简单高效的路由算法,并采用硬件描述语言实现了该网络结构,构建了周期精确的网络性能模拟环境。仿真和实验结果表明,在中小规模网络环境以及网络负载不高(<40%)的情况下,这种双环网络结构在延时和吞吐率等性能指标上,与具备100%吞吐率的YARC结构的片上网络相当,但其硬件开销远远小于YARC的。

In order to simplify the complexity of network on chip with medium scale and improve the efficiency of the networks,a bi-ring network on chip based on deflection routing is proposed.Its collision resolving mechanism is studied,and a simple and efficient routing algorithm is given.The bi-ring network on chip is implemented by Hardware Description Language(HDL)and its cycle-accurate simulation is constructed.The experimental results show that the bi-ring network has the similar performance with the YARC on-chip network with 100%throughput,but has far less hardware cost.