test(searches): JAX validation for MultiStart resurrection#59
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…n-death) Add scripts/searches/MultiStartResurrect.py: runs MultiStartAdam with resurrect off then on (identical seeded starts) and asserts both recover the Gaussian truth basin and the identical MAP, exercising the resurrect knob and the n_resurrections diagnostic. Pixelized-landscape validation where resurrection is load-bearing is A100-only; this asserts the cross-likelihood safety property. Upstream: PyAutoLabs/PyAutoFit#1400. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Summary
Adds the JAX validation script for the
resurrect(restart-on-death) knob on the multi-start gradient MAP searches, from the upstream library PR (Phase 2 of the multi-start gradient v2 promotion, autolens_workspace_developer#101).The pixelized-landscape validation where resurrection is load-bearing is A100-only (the
searches_minimalreference proved it — job 330598 — and the library port mirrors that exactreinit_startslogic), so it cannot run in this CPU suite. What this script asserts is the property that must hold on every likelihood: the knob is safe —resurrecton and off recover the identical MAP on the 1D Gaussian, even when resurrection fires incidentally (a broad start drawn onto thesigma≈0non-finite point is redrawn).Upstream PR
PyAutoLabs/PyAutoFit#1400 (
pending-release) — must merge before this workspace PR (library-first merge gate).Scripts Changed
Added
scripts/searches/MultiStartResurrect.py— runsMultiStartAdamwithresurrectoff then on (identical seeded starts) and asserts both recover the Gaussian truth basin and the identical MAP; checksresurrect/n_resurrectionsinsamples_info.No existing scripts change (the library API change is additive/off-by-default). Not added to
smoke_tests.txt— follows theMultiStartAdam.py/MultiStartProdigy.pyfull-sweep precedent.Test Plan
python scripts/searches/MultiStartResurrect.py— passes:resurrectoff50.156/25.196/9.858(n_resurrections=0), on50.156/25.196/9.858(n_resurrections=1), identical basin.Generated by the PyAutoLabs agent workflow.