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Fault-Tolerant Adaptive Deadlock-Recovery Routing for k-ary n-cube Networks

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3 Author(s)
Yoshinaga, T. ; Graduate Sch. of Inf. Syst., Electro-Commun. Univ. ; Hosogoshi, H. ; Sowa, M.

This paper proposes a fault-tolerant fully adaptive deadlock-recovery routing algorithm for k-ary n-cube networks. We intend to consider both the adaptability for faults and the communication performance by integrating regular and irregular network routing. Our algorithm tolerates any number or shape of faults without disabling fault-free nodes by maintaining routing tables that are configured based on faulty information. Our algorithm also provides minimal misrouting paths around faults by guaranteeing deadlock freedom using only two virtual channels per physical channel. Simulation results show that the proposed algorithm attains robust communication performance for uniform and nonuniform traffic patterns not only on a fault-free torus network but also on irregular tori with faulty nodes

Published in:

Innovative Architecture for Future Generation High-Performance Processors and Systems, 2004. Proceedings

Date of Conference:

12-14 Jan. 2004

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