异步2D -Torus 片上网络自适应路由算法

摘要

采用异步电路设计方法学，针对确定性路由算法在异步片上网络实现中遇到的容易阻塞和路由资源浪费等问题，提出了一种适用于2D -Torus 拓扑结构的异步片上网络自适应路由算法，并搭建测试平台，对基于该算法的异步片上网络的功能和性能进行分析、验证与测试。结果表明，该算法可以满足路由自适应的要求，有效减小片上网络的路由延迟。基于该算法的异步片上网络可以满足多方向数据通信、多路数据并行通信和数据请求平等仲裁等性能要求，并且可以实现对从节点 IP 核的访问调用。%To solve the problem of easily blocking and the waste of routing resources of asynchronous network-on-chip (NoC)using determined routing algorithm,an adaptive routing algorithm suitable for asynchronous NoC using 2D-Torus topology was proposed based on the asynchronous circuit design methodology.A test platform was established,and the function and performance of the asynchronous NoC were analyzed,verified and tested.The experimental result indicates that the adaptive routing algorithm proposed can meet the requirement of self-adaptive routing,and can effectively reduce the transport delay.The asynchronous NoC system proposed supports multi-directional data communication,multi-channel parallel data communication and equal arbitration of data request,and it can call the IP core to perform the corresponding data processing.