Optimizing with phases: design and application space assessment for networks of phase-locked Ring Oscillators - CEA - Commissariat à l’énergie atomique et aux énergies alternatives
Conference Papers Year : 2024

Optimizing with phases: design and application space assessment for networks of phase-locked Ring Oscillators

Abstract

We investigate the operating conditions under which networks of coupled phase-locked Ring Oscillators can successfully map to Ising models in order to efficiently solve optimum search problems, shedding light on the fundamental design space trade-offs impacting solution quality. We designed and experimentally measured a test chip in 22nm FD-SOI technology with built-in readout. By solving various fully-connected 5-node graphs encoding 3-level Weighted MAX-CUT problems, we discuss the challenges associated to balancing the relative strength of coupling and synchronization signals.
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Dates and versions

cea-04760649 , version 1 (30-10-2024)

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Cite

A. Bazzi, E. Hardy, J. Ballester, F. Badets, L. Hutin. Optimizing with phases: design and application space assessment for networks of phase-locked Ring Oscillators. 2024 IEEE 6th International Conference on AI Circuits and Systems (AICAS), Apr 2024, Abu Dhabi, United Arab Emirates. pp.602-606, ⟨10.1109/AICAS59952.2024.10595933⟩. ⟨cea-04760649⟩
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