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Proceedings Paper

Optical interconnection network with 3-D layout and distributed control
Author(s): Larry Rudolph; Dror G. Feitelson; Eugen Schenfeld
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Paper 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.

Paper Details

Date Published: 1 August 1990
PDF: 12 pages
Proc. SPIE 1281, Optical Interconnections and Networks, (1 August 1990); doi: 10.1117/12.20679
Show Author Affiliations
Larry Rudolph, Hebrew Univ. of Jerusalem (Israel)
Dror G. Feitelson, Hebrew Univ. of Jerusalem (Israel)
Eugen Schenfeld, Hebrew Univ. of Jerusalem (Israel)

Published in SPIE Proceedings Vol. 1281:
Optical Interconnections and Networks
Hartmut Bartelt, Editor(s)

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