Advantages of Silicon Photonics for Multi-socket Systems

TitleAdvantages of Silicon Photonics for Multi-socket Systems
Publication TypeConference Paper
Year of Publication2009
AuthorsBeamer, S., Stojanovic V., Asanović K., Batten C., & Joshi P.
Conference Name23rd International Conference on Supercomputing (ICS-09)
Date Published06/2009
Conference LocationYorktown Heights, NY

Future single-board multi-socket systems may be unable to
deliver the needed memory bandwidth electrically due to power limitations, which will hurt their ability to drive performance improvements. Energy efficient off-chip silicon photonics could be used to deliver the needed bandwidth, and it could be extended on-chip to create a relatively flat network topology. That flat network may make it possible to implement the same number of cores with a greater number of smaller dies for a cost advantage with negligible performance degradation.

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