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[feat] Integrate Poseidon (ScOT) model into PaddleCFD#139

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lkyu-ly wants to merge 1 commit intoPaddlePaddle:developfrom
lkyu-ly:feat/poseidon
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[feat] Integrate Poseidon (ScOT) model into PaddleCFD#139
lkyu-ly wants to merge 1 commit intoPaddlePaddle:developfrom
lkyu-ly:feat/poseidon

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@lkyu-ly lkyu-ly commented Apr 17, 2026

Summary

  • Integrate Poseidon (Scientific Operator Transformer) model into PaddleCFD
  • Core model package (ScOT, ScOTConfig) available at ppcfd.models.poseidon
  • Training, inference, dataset definitions, configs and checkpoint conversion tooling under
    examples/poseidon

Test plan

  • python -c "from ppcfd.models.poseidon import ScOT, ScOTConfig"
  • python examples/poseidon/train.py --help
  • python examples/poseidon/inference.py --help
  • Minimal training completes successfully on Nvidia/Iluvatar GPU, supports CINN.

Inference diff

  • max_abs_diff: 0.000000840000
  • mean_abs_diff: 0.000000605625
  • rmse: 0.000000625115
  • max_rel_diff: 0.000001736377
  • mean_rel_diff: 0.000001346895

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