一种基于Chiplet集成技术的超高阶路由器设计

高带宽、低延迟的高阶路由器对于构建大规模可扩展的互连网络有着重要的作用,但是受限于单个路由芯片设计复杂度的不断增加以及摩尔定律、登纳德缩放定律的放缓与停滞,在单个路由芯片上扩展更多的端口数将变得越来越难.Chiplet将多个裸片以特定的方式集成在一个高级封装内,形成具有特定功能的大芯片,以此解决芯片设计中涉及的规模、研...

A super high-radix router based on Chiplet integration technology

High-radix router with low latency and high bandwidth plays an important role in constructing large-scale interconnection networks. However，limited by the continuous increasingly design complexity and the slowdown and stagnation of Moores law and Dennard scaling, it will become more and more difficult to expand a higher number of ports on a single routing chip. Chiplet integrates multiple dies in a high-level package to form a large chip with specific functions, so as to solve the problems of scale, cost and period in chip design. According to the idea of Chiplet integration technology and using existing routing chips, this paper proposes a 128-port high-radix router.The internal structure of this high-radix router is a a two-level fat-tree network composed of multiple switch dies. The actual RTL-level code simulation test shows that, compared with the single-chip high-radix router, the designed high-radix router achieves better performance while expanding more ports.