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[QUBO] correct local cost, separate annealing neuron #261

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wants to merge 17 commits into from
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[QUBO] correct local cost, separate annealing neuron #261

wants to merge 17 commits into from

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phstratmann
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Issue Number: 356, 360 in lava-on-loihi

Objective of pull request:
This PR resolves two issues in the QUBO solver:

  1. Calculate correct local cost, in order to decide on switching binary variables.
  2. Separate out the temperature annealing into a separate neuron model. This allows to save CX state in the NEBM0-SA neuron, to have 16bit temperature resolution, and to save 1 ucode pass for all NEBM-SA neurons per time step.

Pull request checklist

  • Issue created that explains the change and why it's needed
  • Tests are part of the PR (for bug fixes / features)
  • Docs reviewed and added / updated if needed (for bug fixes / features)
  • PR conforms to Coding Conventions
  • PR applys BSD 3-clause or LGPL2.1+ Licenses to all code files
  • Lint (flakeheaven lint src/lava tests/) and (bandit -r src/lava/.) pass locally
  • Build tests (pytest) passes locally

Pull request type

  • Bugfix
  • Feature

phstratmann and others added 16 commits July 11, 2023 15:44
@phstratmann phstratmann self-assigned this Sep 27, 2023
@phstratmann phstratmann deleted the sa_anneal_neuron branch November 30, 2023 15:15
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@srrisbud srrisbud Awaiting requested review from srrisbud

@AlessandroPierro AlessandroPierro Awaiting requested review from AlessandroPierro

@GaboFGuerra GaboFGuerra Awaiting requested review from GaboFGuerra

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