ComfyUI_portable_python312 / runscripts /README_VERY_IMPORTANT_v2.txt
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ComfyUI portable environment enhanced edition https://huggingface.co/datasets/Xeno443
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This ComfyUI portable version has been enhanced to include
* a portable Git, which is sometimes needed to download additional custom node components
* ComfyUI-Manager for easy custom node management
* Keeping Python v3.12.10 for maximum compatibility
Everything else is unchanged from the original ComfyUI portable.
The only thing your system needs are the Microsoft Visual C++ runtimes, but if you are not using a naked Windows install
it is very likely that you already have those. If you don't have them you can download them here:
## Microsoft Visual C++ 2015-2022 Redistributable
https://learn.microsoft.com/en-us/cpp/windows/latest-supported-vc-redist?view=msvc-170#visual-studio-2015-2017-2019-and-2022
The original startup bat files remain unchanged and as such will not be able to use Git if you don't have a system-wide install.
Use the "_v2" versions to make sure the portable environment is set up correctly.
Usage
=====
## run_nvidia_gpu_v2.bat
This file sets up the necessary environment variables and launches ComfyUI
## get-models.bat
On a fresh install you will be missing a few essential/popular models and this file will download them for you.
## run_nvidia_gpu_v2_fast_fp16_accumulation.bat
Same as above but enables fast FP16 accumulation.
## run_nvidia_gpu_v2_sageattn.bat
Starts ComfyUI with support for Sage Attention.
You first must install Sage Attention support!
## run_nvidia_gpu_v2_flashattn.bat
Starts ComfyUI with support for Flash Attention.
You first must install Flash Attention support!
## install_sageattn1.bat, install_sageattn2.bat, install_flashattn.bat
These install the corresponding versions of Sage or Flash Attention into the Python environment.
Only use this if you know what you are doing!
## environment.bat
Starts a cmd.exe within the portable environment. You can use this to manually modify the embedded Python.
Only use this if you know what you are doing!
## change-pytorch.bat
This allows you to switch to a different Pytorch version, or just reinstall the current one if you encounter issues.
Only use this if you know what you are doing!