IntLoRA

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[ICML2025] LoRA fine-tune directly on the INT4 models.

IntLoRA 최신버젼 다운로드

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# IntLoRA: Integral Low-rank Adaptation of Quantized Diffusion Models

### [[Paper](https://arxiv.org/pdf/2410.21759)]

### Tune your customized diffusion model on ONE 3090 GPU!

[Hang Guo](https://csguoh.github.io/)1 | [Yawei Li](https://yaweili.bitbucket.io/)2 | [Tao Dai](https://scholar.google.com/citations?user=MqJNdaAAAAAJ&hl=zh-CN)3| [Shu-Tao Xia](https://scholar.google.com.hk/citations?user=koAXTXgAAAAJ&hl=zh-CN)1,4| [Luca Benini](https://scholar.google.com.hk/citations?user=8riq3sYAAAAJ&hl=zh-CN&oi=ao)2

1Tsinghua University, 2ETH Zurich, 3Shenzhen University, 4Pengcheng Laboratory

:star: If our IntLoRA is helpful to your images or projects, please help star this repo. Thanks! :hugs:

## TL; DR
> Our IntLoRA offers three key advantages: (i) for fine-tuning, the pre-trained weights are quantized, reducing memory usage; (ii) for storage, both pre-trained and low-rank weights are in INT which consumes less disk space; (iii) for inference, IntLoRA weights can be naturally merged into quantized pre-trained weights through efficient integer multiplication or bit-shifting, eliminating additional post-training quantization.

## 🔎 Overview framework

## ⚙️ Dependencies and Installation

### Step-1 Download and Environment

```
## git clone this repository
git clone https://github.com/csguoh/IntLoRA.git
cd ./IntLoRA
```

```
# create a conda environment
conda env create -f environment.yaml
conda activate intlora
```

### Step-2 Preparation

- This code repository contains [Dreambooth](https://arxiv.org/abs/2208.12242) fine-tuning using our IntloRA. One can download the subject driven generation datasets [here](https://github.com/google/dreambooth/tree/main/dataset).

- You also need to download the pre-trained model weights which will be fine-tuned with our IntLoRA. Here, we use the [Stable Diffusion-1.5](https://huggingface.co/CompVis) as a example.

### Step-3 Fine-tuning!

- The main file of the fine-tuning is defined in the `train_dreambooth_quant.py`. We have also give the off-the-shelf configuration bash file for you. Thus, one can directly train customized diffusion models with the following command.

```
  bash ./train_dreambooth_quant.sh
  ```

- The following are some key parameters that you may want to modify.

- `rank`: the inner rank of the LoRA adapter
  - `intlora`: one can choose 'MUL' to use our InrLoRA-MUL or 'SHIFT' to use our InrLoRA-SHIFT
  - `nbits`: the number of bits of the weight quantization bits
  - `use_activation_quant`: whether to use the activation quantization
  - `act_nbits`: the activation bits of the activation quantization
  - `gradient_checkpointing `: whether to use the gradient checking to further reduce the GPU cost.

- After run the fine-tunning command above, you can find the generated results in the `./log_quant` file fold.

## 😄 Evaluation
- After generate the images, you can test the quality of each generated image using the following command:

```
python evaluation.py
```

- It will generate a `.json` file which contains the IQA results of each subject. Then we can obtain the overall evaluation result with

```
python get_results.py
```

## 🎓Citations
If our code helps your research or work, please consider citing our paper.
The following are BibTeX references:

```
@article{guo2024intlora,
  title={IntLoRA: Integral Low-rank Adaptation of Quantized Diffusion Models},
  author={Guo, Hang and Li, Yawei and Dai, Tao and Xia, Shu-Tao and Benini, Luca},
  journal={arXiv preprint arXiv:2410.21759},
  year={2024}
}
```

IntLoRA

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