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Feature : LC2ST MLP GPU support (closes : #1160) #1715

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Feature : LC2ST MLP GPU support (closes : #1160) #1715

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@Dev-Sudarshan Dev-Sudarshan commented Dec 20, 2025

This PR adds optional GPU support to L-C2ST by introducing a PyTorch-based
MLP classifier implemented via skorch. This addresses issue #1160 .

Changes:

  • Add a PyTorch MLP with skorch to support GPU training
  • Preserve sklearn-like defaults and training dynamics
  • Add device handling (cpu / cuda)
  • Support user overrides via classifier_kwargs while preserving sbi defaults
  • Extend tests to cover:
    • GPU/CPU device placement
    • Default parameter behavior
    • User override merging

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