通过轮廓混合交换实现高能效片上网络
Energy-Efficient On-Chip Networks through Profiled Hybrid Switching
摘要：
虚拟信道流量控制是现代片上网络的实际选择，以通过缓冲和分组交换更好地利用链路带宽，这也是大功率占用和长每跳延迟的来源。另一方面，在虚拟通道流控制下，带宽对于并行工作负载来说可能是充足的。因此，可以利用过时但更简单的流控制（如电路交换）来提高现代片上网络的能效。在本文中，我们建议利用电路交换下的链路带宽的一部分，使部分流量可以传输无缓冲区，而无需路由。我们的评估结果表明，该建议导致每微片的能量减少高达32%，同时还提供了非常有竞争力的延迟每微片相比，虚拟通道流量控制下的网络。
英文摘要：
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.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
