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Generalized theory for deadlock-free adaptive wormhole routing and its application to Disha Concurrent

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3 Author(s)
Anjan, K.V. ; Pyramid Technol. Corp., San Jose, CA, USA ; Pinkston, T.M. ; Duato, J.

This paper generalizes a theory for deadlock-free adaptive wormhole routing by considering a mixed set of resources: edge and central buffers. This generalized theory is then applied to a concurrent version of Disha deadlock-recovery which relaxes the sequential recovery requirement for simultaneous recovery from deadlocks. The proposed extension to Disha does not necessitate any additional resource cost; rather it serves to eliminate the requirement of mutual exclusive access to the deadlock-free lane implemented by a Token. With this extension, Disha Concurrent remains applicable to any topology with a Hamiltonian path including k-ary n-cube networks and is also applicable to tree-based networks

Published in:

Parallel Processing Symposium, 1996., Proceedings of IPPS '96, The 10th International

Date of Conference:

15-19 Apr 1996