Add multi-GPU preprocessing#43
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May 10, 2025 14:48
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In the original code, training feature extraction with REPA was cumbersome and extremely time-consuming. The new code offers multi-GPU multi-threading for feature extraction, reducing the time from 8 hours to 50 minutes.
torchrun --nproc_per_node=8 preprocess.py \ --source=[YOUR_DOWNLOAD_PATH]/ILSVRC/Data/CLS-LOC/train \ --dest=[TARGET_PATH]/vae-sd \ --dest-images=[TARGET_PATH]/images \ --batch-size=128 \ --resolution=256 \ --transform=center-crop-dhariwal