基于单边通信协议的片上网络传输接口设计*

摘要

In order to improve the data exchanging capability between Process Elements(PE) and Network on‐Chip (NoC) ,a NoC Network Interface(NI) is designed based on the one‐side‐communicating protocol .Through Direct Memory Accessing(DMA) ,an efficient data movement between NI and memory is achieved .Also ,the packet sending and receiving latency is reduced and the CPU interference is cut down .Experimental results in a 16‐core Chip Multi‐Processor(CMP) envi‐ronment show that ,compared with a NI that needs the CPU to interfere ,the designed NI can efficiently improve the parallel computation performance of CM Ps .%为了提升处理单元与片上网络之间的数据交互能力，基于单边通信协议设计了一款片上网络传输接口。该接口通过直接存储访问实现了存储器与网络接口间的高效数据搬移，降低了数据包的发送和接收延时，同时减少了CPU的干预。16核片上多处理器环境下的实验结果表明，对比CPU干预型的片上网络传输接口，论文设计的网络接口能有效提升片上多核处理器的并行计算性能。