"It's a small world after all": NoC performance optimization via long-range link insertion
"It's a small world after all": NoC performance optimization via long-range link insertion
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DOI：
10.1109/tvlsi.2006.878263
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发表时间：
2006-07
影响因子：
2.8
通讯作者：
Ümit Y. Ogras;R. Marculescu
中科院分区：
文献类型：
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作者：
Ümit Y. Ogras;R. Marculescu
片上网络（Networks-on-chip，NoCs）是解决复杂片上通信问题的一种有效方法。到目前为止，所考虑的NoC通信架构基于完全常规或完全定制的拓扑结构。在本文中，我们提出了一种方法来自动合成的架构，这是既不定期也不完全定制。相反，我们提出的通信架构是一些长距离链路和标准网状网络的叠加。我们插入的几个特定于应用程序的长距离链路显著增加了网络从空闲状态过渡到拥塞状态时的关键流量工作负载。这样，我们就可以利用完全规则性和部分拓扑定制所提供的好处。事实上，我们的实验结果表明，平均数据包延迟显着减少，并通过对网络拓扑结构的影响最小，实现了网络的重大改进
Networks-on-chip (NoCs) represent a promising solution to complex on-chip communication problems. The NoC communication architectures considered so far are based on either completely regular or fully customized topologies. In this paper, we present a methodology to automatically synthesize an architecture which is neither regular nor fully customized. Instead, the communication architecture we propose is a superposition of a few long-range links and a standard mesh network. The few application-specific long-range links we insert significantly increase the critical traffic workload at which the network transitions from a free to a congested state. This way, we can exploit the benefits offered by both complete regularity and partial topology customization. Indeed, our experimental results demonstrate a significant reduction in the average packet latency and a major improvement in the achievable network through with minimal impact on network topology