Example diffusion urban flow 2d #1245
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…mplete pipeline using EDM model Signed-off-by: Abhijeet Vishwasrao <[email protected]>
Signed-off-by: Abhijeet Vishwasrao <[email protected]>
Signed-off-by: Abhijeet Vishwasrao <[email protected]>
Signed-off-by: Abhijeet Vishwasrao <[email protected]>
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Greptile OverviewGreptile SummaryAdds complete pipeline for 2D urban turbulent flow generation using EDM diffusion models, including training, generation, and statistical evaluation capabilities. Critical Issues Found:
Strengths:
Recommendations:
Important Files ChangedFile Analysis
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| for seed, pred_np in zip(batch_seeds, preds_np): | ||
| image_dir = img_outdir | ||
| os.makedirs(image_dir, exist_ok=True) | ||
| image_path = os.path.join(image_dir, f"{seed:06d}.npy") | ||
| np.save(image_path, pred_np) |
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logic: Outputs saved as .npy files but evaluate-uncond-gen-2D.py:44 expects HDF5 format with key 'pred'. This breaks the evaluation pipeline.
Either consolidate individual .npy files into HDF5 after generation, or update evaluation to load from .npy files.
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| Generated samples are saved as HDF5 files: | ||
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| ```text | ||
| outputs/diffusion_uflow/generated/pred_snaps-<steps>.h5 | ||
| ``` | ||
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| **File Structure:** | ||
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| ```python | ||
| { | ||
| 'u_pred': (N, 288, 96), # Generated U-velocity | ||
| 'v_pred': (N, 288, 96), # Generated V-velocity | ||
| 'x': (288,), # X-coordinates | ||
| 'y': (96,) # Y-coordinates | ||
| } | ||
| ``` | ||
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| Velocities are denormalized to physical units. |
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logic: Incorrect output format documented. generate.py saves individual .npy files (line 359-360), not HDF5.
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| ds_ratio=config.dataset.ds_ratio, | ||
| ) # Check this while integrating the function | ||
| u_pt_p = get_data_for_stats( | ||
| self.pred[:, i], | ||
| x=x, | ||
| y=y, | ||
| z=z, | ||
| input_data_type="2D", | ||
| data="point", | ||
| mean_over_time=False, | ||
| ds_ratio=config.dataset.ds_ratio, | ||
| ) |
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logic: config variable undefined - should be self.ds_ratio (used consistently elsewhere in this class)
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| # Generation | ||
| - generation/uflow2d | ||
| #- generation/patched_based |
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style: Space missing before # comment character
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