Department of Electrical Engineering, The University of Lahore, Islamabad, Pakistan.
Department of Electrical Engineering, COMSATS University Islamabad, Wah Campus, Wah Cantt, Pakistan.
PLoS One. 2019 Oct 2;14(10):e0222759. doi: 10.1371/journal.pone.0222759. eCollection 2019.
This paper presents the Hybrid Scalable-Minimized-Butterfly-Fat-Tree (H-SMBFT) topology for on-chip communication. Main aspects of this work are the description of the architectural design and the characteristics as well as a comparative analysis against two established indirect topologies namely Butterfly-Fat-Tree (BFT) and Scalable-Minimized-Butterfly-Fat-Tree (SMBFT). Simulation results demonstrate that the proposed topology outperforms its predecessors in terms of performance, area and power dissipation. Specifically, it improves the link interconnectivity between routing levels, such that the number of required links isreduced. This results into reduced router complexity and shortened routing paths between any pair of communicating nodes in the network. Moreover, simulation results under synthetic as well as real-world embedded applications workloads reveal that H-SMBFT can reduce the average latency by up-to35.63% and 17.36% compared to BFT and SMBFT, respectively. In addition, the power dissipation of the network can be reduced by up-to33.82% and 19.45%, while energy consumption can be improved byup-to32.91% and 16.83% compared to BFT and SMBFT, respectively.
本文提出了一种用于片上通信的混合可扩展最小化蝴蝶胖树（H-SMBFT）拓扑结构。这项工作的主要方面是描述其架构设计和特点，并与两种已建立的间接拓扑结构（即蝴蝶胖树（BFT）和可扩展最小化蝴蝶胖树（SMBFT））进行了比较分析。仿真结果表明，与前几代相比，所提出的拓扑结构在性能、面积和功耗方面都有了显著的提升。具体来说，它改善了路由层之间的链路互连性，从而减少了所需链路的数量。这使得路由器的复杂性降低，并缩短了网络中任意两个通信节点之间的路由路径。此外，在综合和真实嵌入式应用工作负载下的仿真结果表明，与 BFT 和 SMBFT 相比，H-SMBFT 可以分别将平均延迟降低 35.63%和 17.36%。此外，与 BFT 和 SMBFT 相比，网络的功耗可以降低 33.82%和 19.45%，而能量消耗可以分别提高 32.91%和 16.83%。
