model_cache_code_step8000/README.md

PanTS Wan2.2 Fine-tune: Cache, Code, and Step-8000 Checkpoint

This package is the reproducibility bundle for the UCSF run pants_b16_9k_20260519_215532.

The run targeted 9000 training steps, but the 2-day Slurm allocation ended after step 8016. There was no traceback, OOM, or NaN in the training log. The last complete saved checkpoint pair is step 8000.

What Is Included

• Final non-EMA checkpoint: checkpoints/checkpoint-8000/transformer/
• Distributed resume checkpoint: checkpoints/checkpoint-8000/distributed_checkpoint/
• Final EMA checkpoint: checkpoints/ema_checkpoint-8000/
• Training cache archive: cache/wan22_pants_v2_softwin.tar.zst.part-*
• Two code snapshots: code/twoframe_fastvideo_code_snapshot.tar.zst
• Training logs and offline tracker: logs/
• Metadata and provenance: metadata/

The original raw PanTS train/test data is intentionally packaged separately as:

/scratch/user/yuhwang/artifacts/twoframe/hf_upload/pants_raw_train_test_20260523_102411

That raw package is better uploaded as a Hugging Face dataset repo. This package is better uploaded as a Hugging Face model repo.

Key Paths From Training

• Raw data root: /scratch/user/yuhwang/dataset/PanTS
• Derived cache root: /scratch/user/yuhwang/dataset/pants-captions-ldm/cache/wan22_pants_v2_softwin
• Base model path: /scratch/user/yuhwang/model/Wan2.2-TI2V-5B-Diffusers-merged
• TwoFrame code: /scratch/user/yuhwang/code/TwoFrame
• FastVideo code: /scratch/user/yuhwang/code/FastVideo
• Run output: /scratch/user/yuhwang/artifacts/twoframe/pants_wan22_finetune/pants_b16_9k_20260519_215532

Training Summary

See metadata/train_args.json and metadata/train_health.json for the full captured FastVideo arguments and log health summary.

Important args:

• Model: Wan2.2 TI2V 5B Diffusers merged local directory
• Data cache: wan22_pants_v2_softwin
• GPUs: 8
• Batch size: 16
• Precision: bf16
• Optimizer: AdamW
• Learning rate: 1e-6
• EMA: enabled, decay 0.999, start step 1
• Checkpoint interval: 4000 steps
• Last complete checkpoint: 8000

Restore Cache

cd cache
cat wan22_pants_v2_softwin.tar.zst.part-* > wan22_pants_v2_softwin.tar.zst
tar --use-compress-program zstd -xf wan22_pants_v2_softwin.tar.zst

Restore Code Snapshot

mkdir -p /scratch/user/yuhwang/code_restore
cd /scratch/user/yuhwang/code_restore
tar --use-compress-program zstd -xf /path/to/code/twoframe_fastvideo_code_snapshot.tar.zst

Then use the FastVideo and TwoFrame trees from that restored directory, or compare against the git status/diff metadata in metadata/.

Check Integrity

sha256sum -c SHA256SUMS.txt