一种应用于片上网络的虚拟信道计算算法

Li-Wei Wang
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引用次数: 1

摘要

提出了一种基于虫洞交换的片上网络虚拟信道(VC)计算算法。传统的虚拟信道是均匀分配的,造成了面积和功率的浪费。为了纠正这种情况,基于排队论,我们提出了一个路由分析模型。利用该模型,该算法根据目标应用的流量特征计算网络中各路由器的带宽使用情况,并仅对带宽使用最高的信道添加VC。仿真结果表明,与均匀VC分配相比,VC分配结果更加合理,总传输速率更高。对于热点流量,在达到类似性能水平的情况下,使用我们的算法可以节省约33.3%的缓冲资源。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Virtual Channel Calculation Algorithm for Application Specific On-chip Networks
A virtual channel (VC) calculation algorithm for wormhole-switched on-chip networks is proposed. Traditionally, the virtual channels were allocated uniformly, which results in a waste of area and power. To remedy this situation, based on the queuing theory, we propose a router analytical model. Using this model, the proposed algorithm calculates the bandwidth usage at each router in the network according to the traffic characteristics of the target application, and adds VC only to the channels with the highest bandwidth usage. The simulation results show that the VC allocation result is more reasonable and higher total transmission rate can be achieved compared to the uniform VC allocation. For hotspot traffic, about 33.3% savings in buffering resources can be achieved using our algorithm, in the case of achieving similar performance levels.
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