Integrated Energy Control for Hard Real-Time Networks-on-Chip
Integrated Energy Control for Hard Real-Time Networks-on-Chip
复制标题
硬实时片上网络的集成能量控制
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
R. Ernst
中科院分区：
文献类型：
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作者：
Thawra Kadeed;Sebastian Tobuschat;R. Ernst
虽然片上网络（NoCs）是为复杂的多处理架构提供可扩展互连的普遍解决方案，但其相关的能耗已大大增加。具体而言，硬实时片上网络必须表现出有限的能量消耗，因为这种共享资源中的可靠性问题危及整个系统的安全。在本文中，我们提出了一种安全有效的方法，允许在时间保证下进行全局和在线能源管理，即，关键职能的所有截止日期均得到遵守。该方法引入了一个控制层，通过多个功率感知网络控制器（PANC）来节省NoC数据层上的能量。我们通过PANC探索面对能量耗散源的多样性时整合多种节能计划的潜在效率。为了安全地将PANC应用于硬实时系统，同时满足最后期限，提供了由控制层引起的额外延迟的正式的最坏情况时序分析。实验结果表明，不同的节能方案组合下的片上网络节能的差异。此外，提供的方法的可扩展性，诱导小面积开销。
While Networks-on-Chip (NoCs) are the prevalent solution to provide a scalable interconnect for the complex multiprocessing architectures, their associated energy consumptions have immensely increased. Specifically, hard real-time Networks-on-chip must manifest limited energy consumption as reliability issues in such a shared resource jeopardize the whole system safety. In this paper, we propose a safe and efficient approach that allows global and online energy management under temporal guarantees, i.e., all deadlines of critical functions are met. The approach introduces a control-layer to save energy on the NoC data layer through multiple Power-Aware Network Controllers (PANCs). We explore through PANCs the potential efficiency of integrating multiple energy-savings schemes in the face of the diversity of energy dissipation sources. To safely apply the PANCs in hard real-time systems while meeting the deadlines, a formal worst-case timing analysis of the additional latency induced by the control layer is provided. Experimental results demonstrate the diversity of NoC energy-savings under different combinations of energy-savings schemes. Also, the scalability of the approach is provided, inducing small area overhead.
影响因子：
1.3
作者：
Borislav Nikolic;Sebastian Tobuschat;L. Indrusiak;R. Ernst;A. Burns
通讯作者：
Borislav Nikolic;Sebastian Tobuschat;L. Indrusiak;R. Ernst;A. Burns