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8th International Symposium on Parallel Architectures,Algorithms and Networks (ISPAN'05)
Fault-Tolerant Routing Schemes in RDT(2,2,1)/a-Based Interconnection Network for Networks-on-Chip Designs
Las Vegas, Nevada, USA
December 07-December 09
ISBN: 0-7695-2509-1
Mei Yang, University of Nevada, Las Vegas
Yingtao Jiang, University of Nevada, Las Vegas
Tao Li, Nankai University, China
Yulu Yang, Nankai University, China
It has been well recognized that the fault-tolerance capability is vital for a NoC system, since one faulty link/processor may isolate a large fraction of processors. Continuing from a previous paper [13] where a RDT(2,2,1)/..-based interconnection network for NoC designs was proposed, in this paper, we investigate fault-tolerant routing schemes on NoC systems featuring a RDT-based interconnection network. In specific, we propose two fault-tolerant routing schemes in the presence of either single link/node failure or multiple link/node failures. The proposed routing schemes are based on deterministic routing. Alternative routes are discovered by properly selecting the intermediate nodes between the source and the destination nodes on the rank tori. As of the single link/node failure case, we show that the number of routers on the detoured route generated by the proposed routing scheme is at most 2 more than the number of routers on the original route.
Citation:
Mei Yang, Yingtao Jiang, Tao Li, Yulu Yang, "Fault-Tolerant Routing Schemes in RDT(2,2,1)/a-Based Interconnection Network for Networks-on-Chip Designs," ispan, pp.52-57, 8th International Symposium on Parallel Architectures,Algorithms and Networks (ISPAN'05), 2005
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