论文标题
通过介绍的混合动力切换，节能片网络
Energy-Efficient On-Chip Networks through Profiled Hybrid Switching
论文作者
论文摘要
虚拟通道流量控制是现代芯片上现代网络的事实选择，可以通过缓冲和数据包切换更好地利用链路带宽，这也是大功率足迹和长时间潜伏期的来源。另一方面，对于虚拟通道流控制下的平行工作负载，带宽可能很丰富。因此，可以利用过时但更简单的流量控制（例如电路切换）来提高现代芯片现代网络的能源效率。在本文中，我们建议在电路开关下利用一部分链接带宽，以便可以无需路由而无需缓冲的部分流量即可。我们的评估表明，与虚拟通道流控制下的网络相比，该提案导致每次FLIT的能量最多减少32％，而每次FLIT的能量也提供了非常有竞争力的潜伏期。
Virtual channel flow control is the de facto choice for modern networks-on-chip to allow better utilization of the link bandwidth through buffering and packet switching, which are also the sources of large power footprint and long per-hop latency. On the other hand, bandwidth can be plentiful for parallel workloads under virtual channel flow control. Thus, dated but simpler flow controls such as circuit switching can be utilized to improve the energy efficiency of modern networks-on-chip. In this paper, we propose to utilize part of the link bandwidth under circuit switching so that part of the traffic can be transmitted bufferlessly without routing. Our evaluations reveal that this proposal leads to a reduction of energy per flit by up to 32% while also provides very competitive latency per flit when compared to networks under virtual channel flow control.
