PermuQuant lowers per-group quantization error in diffusion models by sorting channels with similar activation and weight statistics into the same group using a calibration-based acceptance rule.
Convrot: Rotation-based plug-and-play 4-bit quantization for diffusion transformers.arXiv
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PermuQuant: Lowering Per-Group Quantization Error by Reordering Channels for Diffusion Models
PermuQuant lowers per-group quantization error in diffusion models by sorting channels with similar activation and weight statistics into the same group using a calibration-based acceptance rule.