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A Performance-Enhancing Fault-Tolerant Routing Algorithm for Network-on-Chip in Uniform Traffic

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3 Author(s)
Rezazadeh, A. ; Dept. of Comput. Eng., Iran Univ. of Sci. & Tech., Tehran ; Fathy, M. ; Hassanzadeh, A.

This paper proposes a performance-enhancing fault-tolerant routing algorithm based on f-cube3 as a new solution for increasing the rate of switched and routed packets in NoCs. The f-cube3 algorithm is a wormhole-switched routing for 2-D mesh networks and has been used for block faults such as f-ring and f-chain. We have enhanced the use of virtual channels per each physical link without adding new extra virtual channel. It is proposed that when a message is not blocked by fault, all virtual channels could be used. We have simulated both f-cube3 and our algorithm for the same conditions; message length, network size, traffic etc. As the simulation results show, our algorithm has a higher saturation point than f-cube3 algorithm. The results also show that our algorithm has more utilization of links and less blocked messages rate than f-cube3.

Published in:

Modelling & Simulation, 2009. AMS '09. Third Asia International Conference on

Date of Conference:

25-29 May 2009