超立方体双环互连网络及路由算法*

给出了一种可扩展的互连网络拓扑结构，称为超立方体双环。该互连网络拓扑结构结合了超立方体拓扑的短直径、高连通性、对称性、路由简单和一种新的双环拓扑结构的可扩展性和常数节点度的优点，使得网络规模增大时，网络节点度可以保持常数；网络节点采用格雷编码和约翰逊编码的混合编码方法，网络的任意相邻节点编码有且仅有一位不同，使得路由算法设计简单。最后分别设计了基于混合编码的单播、广播路由算法。分析表明提出的互连网络具有较好的拓扑性质和通信性能。

Topology and routing algorithms of hypercube-connected double-loop interconnect network

This paper proposed a new scalable interconnection network topology, called hypercube-connected double-loop(HCDL). The HCDL network combined the positive features of hypercube topology, such as small diameter, high connectivity, symmetry and simple routing, and the scalability and constant node degree of a new double-loop topology. The HCDL network could maintain a constant node degree regardless of the increase in the network size. The nodes of the HCDL network adopted the hybrid coding combining Johnson code and Gray code. The hybrid coding scheme could make routing algorithms simple and efficient. Designed both unicasting and broadcasting routing algorithms for the HCDL network, and they were based on the hybrid coding scheme. A detailed analysis shows that the HCDL network is a better interconnection network in the properties of topology and the performance of communication.