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kohya_ss-hydit

This repository contains custom codes for kohya_ss GUI, and sd-scripts training codes for HunyuanDiT.

Overview

Train HunyuanDiT with Kohya_ss

Train HunyuanDiT with Dreambooth.

dreambooth

Train HunyuanDiT with LoRA. lora

Usage

We provide several commands to quick start:

# Download kohya_ss GUI
git clone https://github.com/bmaltais/kohya_ss.git
cd kohya_ss/

# Download sd-scripts training backend, use dev branch
git clone -b dev https://github.com/kohya-ss/sd-scripts ./sd-scripts

# Move the costom GUI codes to the kohya_ss GUI, and replace files with the same name
cp -Rf ${HunyuanDiT}/kohya_ss-hydit/* ./

# Download model weights as before or link the existing model folder to kohya_ss/models.
python -m pip install "huggingface_hub[cli]"
# If you want to download the full model, use the following command
huggingface-cli download Tencent-Hunyuan/HunyuanDiT-v1.1 --local-dir ./models/HunyuanDiT-V1.1
huggingface-cli download Tencent-Hunyuan/HunyuanDiT-V1.2 --local-dir ./models/HunyuanDiT-V1.2
# Or, if you want to download the fp16 pruned model
huggingface-cli download KBlueLeaf/HunYuanDiT-V1.1-fp16-pruned --local-dir ./models/HunyuanDiT-V1.1-fp16-pruned

# After the model is downloaded, you may need to modify the file name an make sure it follows the kohya standard format:
# rename the file name in t2i/ folder as shown below:
# HunyuanDiT-V1.2/t2i/
#  - model/                  -> denoiser/
#  - clip_text_encoder/      -> clip/
#  - mt5/                    -> mt5/
#  - sdxl-vae-fp16-fix/      -> vae/
# Also you may need to move tokenizer/* into clip/ folder
mv HunyuanDiT-V1.2/t2i/model/ HunyuanDiT-V1.2/t2i/denoiser/
mv HunyuanDiT-V1.2/t2i/clip_text_encoder/ HunyuanDiT-V1.2/t2i/clip/
mv HunyuanDiT-V1.2/t2i/mt5/ HunyuanDiT-V1.2/t2i/mt5/
mv HunyuanDiT-V1.2/t2i/sdxl-vae-fp16-fix/ HunyuanDiT-V1.2/t2i/vae/
mv HunyuanDiT-V1.2/t2i/tokenizer/* HunyuanDiT-V1.2/t2i/clip/ 

# Install some essential python Package, 
conda create -n hydit-kohya python=3.10.12
conda activate hydit-kohya

# Install some essential packages, please make sure cuda environment is installed and python version is 3.10
# For cuda 12:
pip install torch==2.1.2 torchvision==0.16.2 xformers==0.0.23.post1
# For cuda 11:
pip install torch==2.1.2+cu118 torchvision==0.16.2+cu118 xformers==0.0.23.post1+cu118 --extra-index-url https://download.pytorch.org/whl/cu118
# For cpu offloading to save GPU memory, we recommend to install Deepspeed as follows:
DS_BUILD_CPU_ADAM=1 pip install deepspeed==0.14.1

# Install other python package
pip install -r hunyuan_requirements.txt

# Run the Kohya_ss UI launch command
python kohya_gui.py

After the panel is launched, you can use the GUI to train the HunyuanDiT model.

If you want to train the HunyuanDiT model: v_parameterization checkbox is required. Model version checkbox like HunYuan 1.1 and HunYuan 1.2 is required. Please select the corresponding version As is shown in the following figure: checkbox

If you face any WORLD_SIZE key errors in environment variables, try setting it manually, like: export WORLD_SIZE=1.

Training Notice

⚠️ Important Reminder:
Some arguments used in the training process only support the DEFAULT value so far. Please read the following instructions first.

Hardware requirements

The table below outlines GPU memory usage for various training methods on the HunYuanDiT V1.2 model. We suggest using HunYuanDiT V1.2 over HunYuanDiT V1.1 due to its superior performance and lower memory consumption.

Training Method Gradient checkpoint enable Deepspeed enable GPU Memory Usage
Dreambooth No No 33 GB
Dreambooth Yes No 26 GB
Dreambooth Yes Yes 16 GB
LoRA No No (Not support yet) 24 GB
LoRA Yes No (Not support yet) 11 GB
  • If a CUDA OUT OF MEMORY error arises, consider using gradient checkpointing or enabling Deepspeed (currently only supports the Dreambooth method) to decrease memory usage as follows:

    Parameters -> Advanced -> Gradient Checkpointing

    Parameters -> Advanced -> Enable deepspeed

    deepspeed

Dreambooth method

  • In the Dreambooth method, the model will be only saved as ckpt format.

  • We only support the default xformers cross attention.

  • You can optionally employ gradient checkpointing, optimizer offloading, and parameter offloading to save GPU memory usage.

  • Gradient checkpointing (click on its checkbox) only needs 24GBs instead of the original 33 GBs. Furthermore, optimizer and parameter offloading (click on three checkboxes of enable deepspeed, offload optimizer device and offload param device and set zero stage as 2 or 3) can work together to decrease the memory usage to only 16GBs.

LoRA method

  • We only support the default xformers cross attention.
  • Only HunYuan 1.1 supports LyCORIS/.. right now.

Inference

We offer a basic Gradio interface for inference. Run the command below to start:

python ./sd-scripts/hunyuan_inference_gui.py

Visit http://0.0.0.0:7888 to view the GUI in browser.

Ensure to choose the right training method (Dreambooth/LoRA/LyCORIS), model version (HunYuan 1.1 / HunYuan 1.2), and model path as displayed below:

inference

You can also initiate inference using the command below.

# Inference with dreambooth
python ./sd-scripts/hunyuan_test_dreambooth.py
# Inference with lora
python ./sd-scripts/hunyuan_test_lora.py
# Inference with lycoris
python ./sd-scripts/hunyuan_test_lycoris.py

Reference

[1] https://github.com/bmaltais/kohya_ss

[2] https://github.com/kohya-ss/sd-scripts

[3] kohya-ss/sd-scripts#1378

Acknowledgements

We sincerely appreciate the joint efforts of KohakuBlueleaf and Bdsqlsz.