Computing With an All-Optical Cache Hierarchy Using Optical Phase Change Memory as Last Level Cache

Haiyang Han; Theoni Alexoudi; Chris Vagionas; Nikos Pleros; Nikos Hardavellas

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper Tu5.71

Computing With an All-Optical Cache Hierarchy Using Optical Phase Change Memory as Last Level Cache

Haiyang Han, Theoni Alexoudi, Chris Vagionas, Nikos Pleros, and Nikos Hardavellas

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Joint Poster Session I (Tu5)

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H. Han, T. Alexoudi, C. Vagionas, N. Pleros, and N. Hardavellas, "Computing With an All-Optical Cache Hierarchy Using Optical Phase Change Memory as Last Level Cache," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper Tu5.71.

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Abstract

We discuss the architecture of an all-optical cache hierarchy that extends existing optical cache designs with an optical PCM LLC. We design and analyze methods to mitigate PCM’s slow write speed and limited lifetime for 20% execution time reduction and non-volatility.

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