Paper Info
Title
DAS: An Efficient NoC Router for Mixed-Criticality Real-Time Systems
Abstract
Mixed-Criticality Systems (MCS) are real-time systems characterized by two or more distinct levels of criticality. In MCS, it is imperative that high-critical flows meet their deadlines while low critical flows can tolerate some delays. Sharing resources between flows in Network-On-Chip (NoC) can lead to different unpredictable latencies and subsequently complicate the implementation of MCS in many-core architectures. This paper proposes a new virtual channel router designed for MCS deployed over NoCs. The first objective of this router is to reduce the worst-case communication latency of high-critical flows. The second aim is to improve the network use rate and reduce the communication latency for low-critical flows. The proposed router, called DAS (Double Arbiter and Switching router), jointly uses Wormhole and Store And Forward techniques for low and high-critical flows respectively. Simulations with a cycle-accurate SystemC NoC simulator show that, with a 15% network use rate, the communication delay of high-critical flows is reduced by 80% while communication delay of low-critical flow is increased by 18% compared to usual solutions based on routers with multiple virtual channels.
Year
DOI
Venue
2017
10.1109/ICCD.2017.42
2017 IEEE International Conference on Computer Design (ICCD)
Keywords
Field
DocType
Network-On-Chip,Store And Forward,Wormhole,mixed-criticality systems,NoC router,virtual channel
Store and forward,Arbiter,Computer science,Latency (engineering),Computer network,Mixed criticality,Communication channel,Network on a chip,Real-time computing,Router,Virtual channel
Conference
ISSN
ISBN
Citations 
1063-6404
978-1-5386-2255-1
1
PageRank 
References 
Authors
0.40
9
6
Name
Order
Citations
PageRank
Mourad Dridi171.90
Stephane Rubini25712.08
Mounir Lallali3776.33
Martha Johanna Sepúlveda Florez410.40
Frank Singhoff59317.70
Jean-Philippe Diguet648667.41