Presentation
HRing: A Hierarchical Ring Design Method for Wavelength-Routed Optical Networks-on-Chip
DescriptionWavelength-routed optical networks-on-chip (WRONoCs) attract ever-increasing attention for supporting high-speed communications with low power and latency. Among all WRONoC routers, optical ring routers attract much interest for their simple structures. However, current designs of ring routers
have overlooked the customization problem. When adapting to applications that have specific communication requirements, current designs suffer high propagation loss caused by long worst-case signal paths and high splitter usage in power distribution networks (PDN). To address those problems, we propose a novel customization method, Hierarchical Ring (HRing), to synthesize application-specific ring routers. Instead of sequentially connecting all nodes, we cluster the nodes and connect them with sub-ring waveguides to reduce the path length. Besides, we propose a mixed integer linear programming model for wavelength assignment to reduce the number of PDN splitters. We compare HRing to three state-of-the-art ring router design methods for six applications. Experimental results show that HRing can greatly reduce the length of the longest signal path, the worst-case insertion loss,
and the number of splitters in the PDN, which contributes to a significant improvement in power efficiency.
have overlooked the customization problem. When adapting to applications that have specific communication requirements, current designs suffer high propagation loss caused by long worst-case signal paths and high splitter usage in power distribution networks (PDN). To address those problems, we propose a novel customization method, Hierarchical Ring (HRing), to synthesize application-specific ring routers. Instead of sequentially connecting all nodes, we cluster the nodes and connect them with sub-ring waveguides to reduce the path length. Besides, we propose a mixed integer linear programming model for wavelength assignment to reduce the number of PDN splitters. We compare HRing to three state-of-the-art ring router design methods for six applications. Experimental results show that HRing can greatly reduce the length of the longest signal path, the worst-case insertion loss,
and the number of splitters in the PDN, which contributes to a significant improvement in power efficiency.
Event Type
Work-in-Progress Poster
TimeWednesday, June 265:00pm - 6:00pm PDT
LocationLevel 2 Lobby
AI
Autonomous Systems
Cloud
Design
EDA
Embedded Systems
IP
Security