Diffusion GLA (DiG)

Scalable and Efficient Diffusion Models with Gated Linear Attention

Lianghui Zhu^1,2,Zilong Huang^{2 📧},Bencheng Liao¹,Jun Hao Liew², Hanshu Yan², Jiashi Feng², Xinggang Wang^{1 📧}

¹ School of EIC, Huazhong University of Science and Technology, ² ByteDance

(^📧) corresponding author.

News

May. 28th, 2024: We released our paper on Arxiv. Code/Models are coming soon. Please stay tuned! ☕️

Abstract

Diffusion models with large-scale pre-training have achieved significant success in the field of visual content generation, particularly exemplified by Diffusion Transformers (DiT). However, DiT models have faced challenges with scalability and quadratic complexity efficiency. In this paper, we aim to leverage the long sequence modeling capability of Gated Linear Attention (GLA) Transformers, expanding its applicability to diffusion models. We introduce Diffusion Gated Linear Attention Transformers (DiG), a simple, adoptable solution with minimal parameter overhead, following the DiT design, but offering superior efficiency and effectiveness. In addition to better performance than DiT, DiG-S/2 exhibits $2.5\times$ higher training speed than DiT-S/2 and saves $75.7%$ GPU memory at a resolution of $1792 \times 1792$. Moreover, we analyze the scalability of DiG across a variety of computational complexity. DiG models, with increased depth/width or augmentation of input tokens, consistently exhibit decreasing FID. We further compare DiG with other subquadratic-time diffusion models. With the same model size, DiG-XL/2 is $4.2\times$ faster than the recent Mamba-based diffusion model at a $1024$ resolution, and is $1.8\times$ faster than DiT with CUDA-optimized FlashAttention-2 under the $2048$ resolution. All these results demonstrate its superior efficiency among the latest diffusion models.

Overview

Envs. for Training

Python 3.9.2
- conda create -n your_env_name python=3.9.2
torch 2.1.1 + cu118
- pip3 install torch==2.2.0 torchvision==0.17.0 torchaudio==2.2.0 --index-url https://download.pytorch.org/whl/cu121

Requirements:

# triton
pip3 install triton

# GLA
git clone https://github.com/sustcsonglin/flash-linear-attention
git checkout 36743f3f14e47f23c1ad45cf5de727dbacb5600e
cd flash-linear-attention
pip3 install -e .

# others
pip3 install diffusers
pip3 install tensorboard
pip3 install timm
pip3 install transformers
pip3 install accelerate
pip3 install fvcore
pip3 install opt_einsum
pip3 install torchdiffeq
pip3 install ftfy
pip3 install PyAV

Train Your DiG

Set your VAE path in train-multi-nodes.py.
Set your DATA_PATH in scripts/dig_s_d2_in1k_256_bs256_1node.sh.
Run bash DiG/scripts/dig_s_d2_in1k_256_bs256_1node.sh no_env_install.

Acknowledgement ❤️

This project is based on GLA (paper, code), flash-linear-attention (code), DiT (paper, code), DiS (paper, code), OpenDiT (code). Thanks for their wonderful works.

Citation

If you find DiG is useful in your research or applications, please consider giving us a star 🌟 and citing it by the following BibTeX entry.

@article{dig,
      title={DiG: Scalable and Efficient Diffusion Models with Gated Linear Attention}, 
      author={Lianghui Zhu and Zilong Huang and Bencheng Liao and Jun Hao Liew and Hanshu Yan and Jiashi Feng and Xinggang Wang},
      year={2024},
      eprint={2405.18428},
      archivePrefix={arXiv},
      primaryClass={cs.CV}
}

hustvl / DiG