Accession Number : ADA511353


Title :   Analysis and Design of Manycore Processor-to-DRAM Opto-Electrical Networks with Integrated Silicon Photonics


Descriptive Note : Final technical rept. 2 Mar 2008-30 Nov 2009


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE


Personal Author(s) : Stojanovic, Vladimir ; Asanovic, Krste


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a511353.pdf


Report Date : 24 Dec 2009


Pagination or Media Count : 53


Abstract : In this report we summarize the results of the investigation to improve the performance of manycore processors with silicon photonic networks for core-to-core and DRAM communication. Our findings indicate that in on-chip core-to-core networks, photonic Clos networks improve the energy-efficiency by 2-3x over other types of electrical networks while providing uniform bandwidth and latency over a range of different applications, at the fraction of the costs and with orders of magnitude smaller demands on photonic device count, power and footprint than global photonic crossbar networks. We also propose a way to utilize the photonic interconnects to efficiently connect multi-socketed chips into a flat, shared memory network, enabling a higher degree of die disintegration for improvements in yield, packaging, thermal and power delivery.


Descriptors :   *ELECTRICAL NETWORKS , INTEGRATED SYSTEMS , MEMORY DEVICES , PHOTONS , TIME SHARING , THERMAL PROPERTIES , SILICON


Subject Categories : Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE