An Adaptive Fault-Tolerant Wormhole Routing Algorithm for Hypercubes

Jau-Der Shih
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Abstract

In this paper, we present an adaptive fault-tolerant wormhole routing algorithm for hypercubes by using 4 virtual networks. Each node is identified to be in one of the four states: safe, ordinarily unsafe, strongly unsafe, and faulty. Based on the concept of unsafe nodes, we design a routing algorithm for hypercubes that can tolerate at least n-1 faulty nodes and can route a message via a path of length no more than the Hamming distance between the source and destination plus four. Previous algorithms which achieve the same fault tolerant ability need at least 5 virtual channels per physical channel. Simulation results show that our algorithm outperforms previous known results.
一种超立方体自适应容错虫洞路由算法
本文提出了一种基于4个虚拟网络的超立方体自适应容错虫洞路由算法。每个节点被标识为处于四种状态之一:安全、一般不安全、强烈不安全和故障。基于不安全节点的概念,我们为超立方体设计了一种路由算法,该算法可以容忍至少n-1个故障节点,并且可以通过长度不超过源和目的地之间的汉明距离加上4的路径来路由消息。以前实现相同容错能力的算法需要每个物理通道至少5个虚拟通道。仿真结果表明,我们的算法优于先前已知的结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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