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Scalable network architectures using the optical transpose interconnection system (OTIS)

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4 Author(s)
F. Zane ; Dept. of Comput. Sci., California Univ., San Diego, La Jolla, CA, USA ; P. Marchand ; R. Paturi ; S. Esener

The optical transpose interconnection system (OTIS) proposed makes use of free-space optical interconnects to augment an electronic system with non-local interconnections. In this paper we show how these connections can be used to implement a large-scale system with a given network topology using small copies of a similar topology. In particular we show that, using OTIS, an N2 node 4-D mesh can be constructed from N copies of the N-node 2-D mesh, an N2 node hypercube can be constructed from N copies of the N-node hypercube, and an (N2, α2, c/2) expander can be constructed from N copies of an (N, α, c) expanders, all with small slowdown. We also show how this expander construction can be used to build multibutterfly networks in a scalable fashion. Finally, we demonstrate how the OTIS connections can be used to produce a bit-parallel crossbar using many copies of bit-serial crossbars with minimal overhead

Published in:

Massively Parallel Processing Using Optical Interconnections, 1996., Proceedings of the Third International Conference on

Date of Conference:

27-29 Oct 1996