Deadlock-Free Message Routing in Multiprocessor Interconnection Networks

  title={Deadlock-Free Message Routing in Multiprocessor Interconnection Networks},
  author={William J. Dally and Charles L. Seitz},
  journal={IEEE Transactions on Computers},
  • W. DallyC. Seitz
  • Published 1 May 1987
  • Computer Science
  • IEEE Transactions on Computers
A deadlock-free routing algorithm can be generated for arbitrary interconnection networks using the concept of virtual channels. A necessary and sufficient condition for deadlock-free routing is the absence of cycles in a channel dependency graph. Given an arbitrary network and a routing function, the cycles of the channel dependency graph can be removed by splitting physical channels into groups of virtual channels. This method is used to develop deadlock-free routing algorithms for k-ary n… 

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