A 4.5Tb/s 3.4Tb/s/W 64×64 Switch Fabric with Self-Updating Least-Recently-Granted Priority and Quality-of-Service Arbitration in 45nm CMOS

📋 论文概要

本文提出一种64×64交换结构，通过自更新最近最少授权优先级和服务质量仲裁器，将数据路由与仲裁控制合并，避免了传统路由器在高基数下的连接瓶颈。该结构实现了4.5Tb/s的吞吐量和3.4Tb/s/W的高能效。

💡 主要创新点

• 提出自更新最近最少授权（LRG）优先级仲裁机制，动态调整信道分配。
• 将数据路由与仲裁控制集成，消除传统分离架构的互连瓶颈。
• 支持服务质量（QoS）区分，适用于高性能片上互连。

🏷 关键词

📄 原文摘要

building blocks of on-die interconnect fabrics that are critical to overall throughput and energy efficiency of high performance systems [1,2]. Conventional routers use distinct logic blocks for routing data and handling arbitration [3,4]. At higher radices, connections between these blocks become a bottleneck, limiting router scalability and degrading performance. Recently, two switch topologies [5,6] merged the datarouting fabric with arbitration control, avoiding this bottleneck. However, [6] relies on centralized control for channel allocation, limiting performance, while

👥 作者与机构

Sudhir Satpathy, Korey Sewell, Thomas Manville, Yen-Po Chen,

Ronald Dreslinski, Dennis Sylvester, Trevor Mudge, David Blaauw University of Michigan, Ann Arbor, MI High-speed and low-power routers form the basic