Title
Scalability analysis of optical Beneš networks based on thermally/electrically tuned Mach-Zehnder interferometers
Abstract
Silicon Photonic interconnects are a promising technology for scaling computing systems into the exa-scale domain. However, significant challenges exist in terms of optical losses and complexity. In this work, we examine the applicability of thermally/electrically tuned Beneš network based on Mach-Zehnder Interferometers for on-chip interconnects as regards its scalability and how optical loss and laser power scale with the number of endpoints. In addition, we propose three hardware-inspired routing strategies that leverage the inherent asymmetry present in the switching components. We evaluate a range of NoC sizes, from 16 up to 1024 endpoints, using 4 realistic workloads and found very promising results. Our routing strategies offer an optical loss reduction of up to 32% as well as a laser power reduction by 33% for 32 endpoints.
Year
DOI
Venue
2019
10.1145/3356045.3360715
Proceedings of the 12th International Workshop on Network on Chip Architectures
Keywords
Field
DocType
optical Beneš networks, scalability analysis, silicon photonics
Mach–Zehnder interferometer,Computer science,Astronomical interferometer,Electrical engineering,Distributed computing,Scalability
Conference
ISBN
Citations 
PageRank 
978-1-4503-6949-7
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Markos Kynigos100.68
Jose A. Pascual2425.03
Javier Navaridas320123.58
Mikel Luján416720.01
John Goodacre5467.35