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LIGHTNING-a WDM-based distributed shared memory clustering testbed: system architecture and protocols

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1 Author(s)
Dowd, P.W. ; Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA

This presentation describes a hierarchical optical structure for high-performance processor clustering. The architecture is based on wavelength division multiplexing (WDM) which enables multiple multi-access channels to be realized on a single optical fiber. The objective of the hierarchical architecture is to achieve scalability yet avoid the requirement of multiple wavelength tunable devices per node. Furthermore, single-hop all-optical communication is achieved: a packet remains in the optical form from source to destination and does not require intermediate routing or o/e conversion. The wavelength multiplexed hierarchical structure features wavelength channel re-use at each level, allowing scalability to very large system sizes. It partitions the traffic between different levels of the hierarchy without electronic intervention in a combination of wavelength- and space-division multiplexing. A significant advantage of the proposed structure is its ability to dynamically vary the bandwidth provided to different levels of the hierarchy

Published in:
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE  (Volume:1 )

Date of Conference: 30-31 Oct 1995

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