华东理工大学学报（自然科学版）2017，Vol.43Issue(2)：254-259,285,7.DOI:10.14135/j.cnki.1006-3080.2017.02.016
基于虫孔直通交换片上网络的共享优先级机制
A Shared Priority Policy in Wormhole Cut-Through Switching Based Network-on-Chip
摘要
Abstract
Network-on-Chip (NoC) based conventional wormhole cut-through switching (Con-WCTS)cannot employ the priority based arbitration logic directly,so it is not suitable for the multiprocessor system-on-chip with high real-time requirements.By utilizing the virtual channel technique,this paper constructs a shared priority wormhole cut-through switching (SP-WCTS) network and proposes a method to calculate the worst-case traversing time for the traffic-flow of the SP-WCTS NoC.Furthermore,some experiments are made for comparing the schedulability of Con-WCT,shared priority wormhole switching (SP-WS),SP-WCTS and round robin wormhole switching (RR-WS) NoCs and analyzing the effect of the number of VCs and the total network utilization on the schedulability of these different NoCs.It is shown that the SP-WCTS NoCs can achieves the best schedulability and the number of VCs has a greater effect on the schedulability of the SP-WS than SP-WCTS NoCs.关键词
片上网络/虫孔直通交换/共享优先级/可调度性分析Key words
network-on-chip/wormhole cut-through switching/shared priority/schedulability analysis分类
信息技术与安全科学引用本文复制引用
吴陶迪,孙自强..基于虫孔直通交换片上网络的共享优先级机制[J].华东理工大学学报（自然科学版）,2017,43(2):254-259,285,7.基金项目
上海市重点学科建设基金(B504) （B504）
