Power-efficient tree-based multicast support for Networks-on-Chip

16th Asia and South Pacific Design Automation Conference (ASP-DAC 2011) Pub Date : 2011-01-25 DOI:10.1109/ASPDAC.2011.5722214

Wenmin Hu, Zhonghai Lu, A. Jantsch, Hengzhu Liu

引用次数: 41

Abstract

In this paper, a novel hardware support for multicast on mesh Networks-on-Chip (NoC) is proposed. It supports multicast routing on any shape of tree-based paths. Two power-efficient tree-based multicast routing algorithms, Optimized tree (OPT) and Left-XY-Right-Optimized tree (LXYROPT) are also proposed. XY tree-based (XYT) algorithm and multiple unicast copies (MUC) are also implemented on the router as baselines. Along with the increase of the destination size, compared with MUC, OPT and LXYROPT achieve a remarkable improvement in both latency and throughput while the average power consumption is reduced by 50% and 45%, respectively. Compared with XYT, OPT is 10% higher in latency but gains 17% saving in power consumption. LXYROPT is 3% lower in latency and 8% lower in power consumption. In some cases, OPT and LXYROPT give power saving up to 70% less than the XYT.

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对片上网络的高能效树型多播支持

提出了一种基于片上网状网络(mesh Networks-on-Chip, NoC)的组播硬件支持方案。它支持任何形状的基于树的路径上的多播路由。提出了两种节能的基于树的组播路由算法:优化树(OPT)和左xy右优化树(LXYROPT)。在路由器上还实现了基于XY树(XYT)算法和多单播复制(MUC)算法作为基线。随着目标大小的增加，与MUC相比，OPT和LXYROPT在延迟和吞吐量方面都有显著提高，平均功耗分别降低50%和45%。与XYT相比，OPT的延迟提高了10%，但功耗节省了17%。LXYROPT延迟降低3%，功耗降低8%。在某些情况下，OPT和LXYROPT比XYT节省多达70%的电力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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16th Asia and South Pacific Design Automation Conference (ASP-DAC 2011)

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