AI 中文总结
提出预算化快速网格协同设计，通过流量感知链路布局与无死锁自适应路由，在固定预算下提升高负载吞吐量。
AI 中文摘要
我们提出了预算化快速网格（Budgeted Express-Mesh），一种拓扑与路由协同设计方法，在固定线缆预算下添加少量流量感知的快速链路。基于ASPL的贪心布局通过模拟引导的退火算法进行优化，而数据包则使用从延迟的快速链路拥塞和预留信号中选择的承诺前K条路由。在四种合成工作负载下，优化布局持续提高了高负载吞吐量，优于网格和随机布局，且退火算法进一步改进了贪心方法。这些增益在延迟量化拥塞信息、更长的快速链路延迟、多微片数据包以及16×16异构工作负载下依然保持。
英文摘要
We present Budgeted Express-Mesh, a topology-routing co-design that adds a small number of traffic-aware express links under a fixed wire budget. An ASPL-based greedy placement is refined by simulation-guided annealing, while packets use committed top-K routes selected from delayed express-link congestion and reservation signals. Across four synthetic workloads, optimized placements consistently improve high-load throughput over Mesh and random placement, and annealing further improves Greedy. The gains persist under delayed quantized congestion information, longer express-link latency, multi-flit packets, and a 16-by-16 heterogeneous workload.
Comments14 pages, 14 figures, 9 tables. Code and artifacts: https://github.com/tsjyma/Express_mesh
