Add Nunchaku Lite single-file quantization (#14100)
* Add Nunchaku Lite single-file quantization
* Support config-backed Nunchaku Lite loading
* Remove Nunchaku runtime manifest metadata loading
* Simplify Nunchaku compact config loading
* Add Nunchaku Lite quantization tests
* Document Nunchaku Lite checkpoint loading
* Refine Nunchaku Lite quantization docs
* Remove unused Nunchaku smooth factor original weights
* Update docs/source/en/quantization/nunchaku.md
Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com>
* Update src/diffusers/quantizers/nunchaku/utils.py
Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com>
* Update src/diffusers/quantizers/nunchaku/nunchaku_quantizer.py
Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com>
* Address Nunchaku Lite review feedback
* Update Nunchaku Lite quantizer
* Rename Nunchaku Lite fp4 precision to nvfp4
* Allow torch_dtype to override Nunchaku compute dtype
* Keep Nunchaku replacement modules on meta during loading
* Require kernels when importing Nunchaku runtime utils
* Use kernels requirement decorators for Nunchaku tests
* Validate Nunchaku CUDA capability requirements
* Apply suggestions from code review
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
* docs: update nunchaku quantization guide
* test: remove nunchaku quantization tests
* fix: reject hopper for nunchaku lite
* Apply suggestion from @rootonchair
* docs: update nunchaku lite compile example
* Apply style fixes
* Apply suggestions from code review
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
Co-authored-by: Vinh H. Pham <phamvinh257@gmail.com>
* update doc to be more reasonable
* fix import that requires kernels
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Co-authored-by: sergereview[bot] <283583894+sergereview[bot]@users.noreply.github.com>
Co-authored-by: Sayak Paul <spsayakpaul@gmail.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: Steven Liu <59462357+stevhliu@users.noreply.github.com>
