Fault-Tolerant Routing
Performance and fault tolerance are two dominant issues facing the design of interconnection networks for large-scale multiprocessor architectures. Fault tolerance is the ability of the network to function in the presence of component failures. However, techniques used to realize fault tolerance are often at the expense of considerable performance degradation. Conversely, making high-performance communication techniques resilient to network faults poses challenging problems. The presence of faults renders existing solutions to deadlock- and livelock-free routing ineffective. The result has been an evolution of techniques that must again address these basic issues in the presence of component failures.
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