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2. LightOn Optical Processing Unit: Scaling-up AI and HPC with a Non von Neumann co-processor

Author

Iacopo Poli, Laurent Daudet, Igor Carron, Ruben Ohana, Daniel Hesslow, Sylvain Gigan, Fabien Moreau, Amélie Chatelain, Safa Mokaadi, Charidimos Chaintoutis, Giuseppe L. Tommasone, Alessandro Cappelli, Kilian Müller, Gustave Pariente, Florent Krzakala, Charles Brossollet, and Julien Launay

Subjects
FOS: Computer and information sciences, Coprocessor, Computer science, Computer Science - Emerging Technologies, Optical processing, Parallel computing, symbols.namesake, Memory management, Emerging Technologies (cs.ET), Power consumption, Scalability, Hardware Architecture (cs.AR), symbols, Computer Science - Hardware Architecture, Unit (ring theory), Scaling, Von Neumann architecture
Abstract

We introduce LightOn's Optical Processing Unit (OPU), the first photonic AI accelerator chip available on the market for at-scale Non von Neumann computations, reaching 1500 TeraOPS. It relies on a combination of free-space optics with off-the-shelf components, together with a software API allowing a seamless integration within Python-based processing pipelines. We discuss a variety of use cases and hybrid network architectures, with the OPU used in combination of CPU/GPU, and draw a pathway towards "optical advantage"., Proceedings IEEE Hot Chips 33, 2021

Published
2021

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