| # Code and Checkpoint Usage |
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| ## Code Snapshot |
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| The code archive contains two trees: |
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| - `TwoFrame`: experiment orchestration, evaluation, data-engine scripts, and local project code. |
| - `FastVideo`: the training stack used for this Wan2.2 fine-tune. |
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| FastVideo matters for this run. The training log references FastVideo modules such as `fastvideo_args.py`, `training_pipeline.py`, and `training_utils.py`. The relevant dirty FastVideo changes are recorded in: |
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| - `metadata/FastVideo.git_status.txt` |
| - `metadata/FastVideo.uncommitted.diff` |
| - `metadata/FastVideo.untracked_files.txt` |
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| TwoFrame status is recorded similarly in `metadata/TwoFrame.*`. |
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| ## Environment |
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| The UCSF environment used during training was: |
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| ```bash |
| source ~/.twoframe_env.sh |
| conda activate /scratch/user/yuhwang/envs/twoframe |
| export PYTHONPATH=/scratch/user/yuhwang/code/FastVideo:/scratch/user/yuhwang/code/TwoFrame:$PYTHONPATH |
| ``` |
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| `~/.twoframe_env.sh` points caches and temporary directories to scratch. |
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| ## Checkpoints |
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| Use the EMA checkpoint for inference-style evaluation unless you explicitly want non-EMA weights: |
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| - EMA: `checkpoints/ema_checkpoint-8000/diffusion_pytorch_model.safetensors` |
| - non-EMA: `checkpoints/checkpoint-8000/transformer/diffusion_pytorch_model.safetensors` |
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| Use the distributed checkpoint only if resuming training: |
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| - `checkpoints/checkpoint-8000/distributed_checkpoint/` |
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| ## Base Model |
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| The run loaded base model components from: |
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| `/scratch/user/yuhwang/model/Wan2.2-TI2V-5B-Diffusers-merged` |
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| That directory is symlink-composed. Its symlink map is recorded in `metadata/base_model_symlinks.txt`. The base model binaries are not duplicated in this package; this package contains the fine-tuned transformer checkpoint and reproducibility assets. |
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| ## Training Command Reconstruction |
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| The exact shell launcher was not preserved in the final run directory. The effective training configuration is captured from the log in `metadata/train_args.json`. Use that file as the source of truth for reconstructing a resume or reproduction launch. |
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| The original output directory was: |
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| `/scratch/user/yuhwang/artifacts/twoframe/pants_wan22_finetune/pants_b16_9k_20260519_215532` |
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