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首页> 外文会议>International Symposium on Embedded Computing and System Design >Lightweight Message Encoding of Power-Gating Controller for On-Time Wakeup of Gated Router in Network-on-Chip
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Lightweight Message Encoding of Power-Gating Controller for On-Time Wakeup of Gated Router in Network-on-Chip

机译：电播控制控制器的轻量级消息编码，用于网络上的导通路由器的适时唤醒

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Power-gating has become one of the most widely used circuit design techniques to mitigate static power. Routers are the major contributor in Networks-on-Chip (NoC) power. The high idle time of practical applications can be utilised to power-off (gated) router in NoC. However, network performance is being compromised as the gated router disconnects the associated node from the rest of the network. Packets in the network face a router wakeup latency before reaching to their destinations. In this paper, we propose a Leon, Lightweight message encoding scheme for power-gating controller to wakeup the sleeping router at right-time on arrival of the packet. We maximize power-gating time of router by wakeup them not early than the required to a packet to maximize static power gains. Simultaneously, the packet does not face wakeup latency of the router as the prior sending of wakeup messages through dedicated signal lines activate router at exactly right-time when it is required. Thus, our proposed message encoding achieves a performance-aware maximal static power reduction wherein control signals stay ahead of packets and preventing packets from having to suffer router wakeup latency. Our experiments show that Leon reduces 39% network latency as compared to conventional power-gating. It enables total static power savings up to 89% on low traffic with a minor overhead in area and power over conventional power-gating. Also, hardware implementation benefits are 83% in area and 70% in power over state-of-the-art encoding.
机译：功率门控成为减轻静电的最广泛使用的电路设计技术之一。路由器是芯片网络（NOC）电源的主要贡献者。实际应用的高空闲时间可用于中华民国的关闭（门控）路由器。但是，随着门控路由器从网络的其余部分断开相关联的节点，网络性能正在受到影响。网络中的数据包在达到目的地之前面临路由器唤醒延迟。在本文中，我们提出了一个Leon，轻量级消息编码方案，用于介绍控制器，在数据包到达时在正确的时间唤醒睡眠路由器。我们最大化路由器的电源门控时间，而不是比数据包所需的唤醒，以最大化静态功率增益。同时，数据包不会面临路由器的唤醒延迟，因为通过专用信号线先前发送唤醒消息，在需要时激活路由器。因此，我们提出的消息编码实现了性能感知的最大静态功率降低，其中控制信号在分组之前保持并防止分组必须遭受路由器唤醒延迟。我们的实验表明，与传统的电力门控相比，莱昂降低了39％的网络延迟。它可以在低流量上节省高达89％的总静电节省，面积轻微开销和传统的电源电源。此外，硬件实施效益在面积83％和最先进的编码中的功率为70％。

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