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Issue No. 12 - December (1983 vol. 32)
ISSN: 0018-9340
pp: 1099-1108
K. Padmanabhan , Laboratory for Advanced Supercomputers, Department of Computer Science, University of Illinois
A general class of fault-tolerant multistage interconnection networks is presented, wherein fault-tolerance is achieved by providing multiple disjoint paths between every input and output. These networks are derived from the Omega networks and as such retain all the connection properties of the parent networks in the absence of faults. An R-path network in this class can tolerate (R-1) arbitrary faults in the intermediate stages of the network at a cost that is far less than providing R copies of the original network. Different techniques for constructing such networks are presented and relevant properties and control algorithms are investigated.
redundant path networks, Array processors, fault tolerance, interconnection networks, multiprocessor systems, nonblocking networks, Omega networks, parallel processing

K. Padmanabhan and D. Lawrie, "A Class of Redundant Path Multistage Interconnection Networks," in IEEE Transactions on Computers, vol. 32, no. , pp. 1099-1108, 1983.
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