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Fault-Tolerant Adaptive Routing in Dragonfly Networks - 2017

Fault-Tolerant Adaptive Routing in Dragonfly Networks

Research Area:  Wireless Sensor Networks


Dragonfly networks have been widely used in the current high-performance computers or high-end servers. Fault-tolerant routing in dragonfly networks is essential. The rich interconnects provide good fault-tolerance ability for the network. A new deadlock-free adaptive fault-tolerant routing algorithm based on a new two-layer safety information model, is proposed by mapping routers in a group, and groups of the dragonfly network into two separate hypercubes. The new fault-tolerant routing algorithm tolerates static and dynamic faults. Our method can determine whether a packet can reach the destination at the source by using the new safety information model, which avoids dead-ends and aimless misrouting. Sufficient simulation results show that the proposed fault-tolerant routing algorithm even outperforms the previous minimal routing algorithm in fault-free networks in many cases.


Author(s) Name:  Dong Xiang,Bing Li and Yi Fu

Journal name:  IEEE Transactions on Dependable and Secure Computing

Conferrence name:  

Publisher name:  IEEE

DOI:  10.1109/TDSC.2017.2693372

Volume Information:  Volume: 16, Issue: 2, March-April 1 2019, Page(s): 259 - 271