arxiv:2107.11814

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

Published on Jul 25, 2021

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Authors:

Amélie Chatelain ,

Julien Launay ,

Ruben Ohana ,

Abstract

The Optical Processing Unit (OPU) is a photonic AI accelerator that achieves high performance with free-space optics and can be integrated into Python-based processing pipelines, supporting hybrid network architectures and aiming for optical advantage.

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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".

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