A distributed message routing algorithm for fault-tolerant hypercube systems

Abstract

A distributed message routing algorithm for faulty hypercube systems is described. To improve the efficiency, the algorithm adopts a heuristic backtracking strategy and each node provides an array to record its all neighbors faulty link information to avoid unnecessary searching for the known faulty links. Furthermore, the faulty link information is dynamically accumulated and the technique of heuristically searching for optimal link is used. The algorithm routes messages through the minimum feasible path between the sender and receiver if at least one such path exists, and takes the optimal path with higher probability when many faulty links exist in the faulty hypercube.<>