Optics are often suggested for interconnecting parallel processors. The minimum size of such a computer was found to be sixteen for a reducing sum and six for a fast Fourier transform due to architectural limits.
© 2005 Optical Society of America
G. A. Russell, A. Nicholson, K. J. Symington, and J. F. Snowdon, " Architectural Limits on Optical Highway Interconnected Parallel Processing," in Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM, Technical Digest (Optical Society of America, 2005), paper IThB4.
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