Optical interconnection network with 3-D layout and distributed control

Larry Rudolph; Dror G. Feitelson; Eugen Schenfeld

doi:10.1117/12.20679

1 August 1990 Optical interconnection network with 3-D layout and distributed control

Larry Rudolph, Dror G. Feitelson, Eugen Schenfeld

Proceedings Volume 1281, Optical Interconnections and Networks; (1990) https://doi.org/10.1117/12.20679
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

Abstract

We present an optical, free-space, crossbar-like N x N interconnection network based on N routing switches of the form 1 to N. The network is used to connect Processing Elements (PEs) in a large-scale, parallel computer, utilizing a 3-D space layout. Each PE controls and sets its own switch, using a distributed algorithm. The switch deflects a monochromatic, coherent light beam towards one of N possible spots. This beam, carrying information from the sending PE, is thereafter passively deflected by a system of multifacet holograms, until it reaches the target PE. Unlike other schemes, this layout uniformly fills the 3-D space with PEs. Thus, inter-PE communication can be minimized when algorithms exploit locality of reference.

Citation Download Citation

Larry Rudolph, Dror G. Feitelson, and Eugen Schenfeld "Optical interconnection network with 3-D layout and distributed control", Proc. SPIE 1281, Optical Interconnections and Networks, (1 August 1990); https://doi.org/10.1117/12.20679

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