基于自适应算法的NoC路由单元的系统级设计
Design of a Router for Network on Chip Based on System Level Based on Adaptive Routing Algorithm
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摘要: 针对片上网络(NoC)中采用确定性路由算法的路由器的缺点,提出了一种NoC路由单元的系统级模型.该模型采用了自适应路由算法,取代了2DMesh拓扑结构中常用的XY维序路由算法,可以根据当前的通道使用状态动态地分配传输路径,并优先保证GS包的发送.在SystemC平台完成了模型的设计与验证,结果表明,所设计的基于自适应算法的NoC路由单元能够在多包并发时避免路径冲突,提高了网络的并行发送能力,并支持GS服务.Abstract: For disadvantages of the router which adopts determined routing algorithm, a system-level model of NoC router is proposed. This router adopts adaptive routing algorithm instead of XY ordered routing algorithm which is widely used in 2D Mesh topology. The router chooses the output ports for data transmitting by the states of current output ports and GS packets have higher priority. The router is modeled on the SystemC platform. Verification results show that the designed of router improve the parallel transmitting ability and support guaranteed service.
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