is it posbable to run with no gpu? (so run cpu only)

[nagaisa]

I have tried using "--use-cpu all" this lets the webui to start but the generate button does not work or do anything, nothing shows for an output for any error or anything. Also looks like the text for it is red but i am not 100% sure, it might also just be the browser or something.

[brkirch]

Add --no-half to your command line arguments and see if that helps.

[nagaisa]

dose not help sadly

[azzassfa]

--no-half worked for me

[yun15634]

If you have problems with CPU mode, try installing Pytouch CPU version.

Administrator Console (PowerShell or Command Prompt)

PS C:\Users\user>cmd
C:\Users\user>c:
C:\Users\user>cd c:\stable-diffusion-webui-master
c:\stable-diffusion-webui-master>python -m venv ./venv
c:\stable-diffusion-webui-master>.\venv\Scripts\activate.bat
c:\stable-diffusion-webui-master>pip install torch==1.13.0+cpu torchvision==0.14.0+cpu --extra-index-url https://download.pytorch.org/whl/cpu

Edit WebUI_user.bat and add environment variables.

set COMMANDLINE_ARGS= --skip-torch-cuda-test --precision full --no-half --use-cpu SD GFPGAN BSRGAN ESRGAN SCUNet CodeFormer --all

*Add --no half as most CPUs do not support AVX 512 (BFloat16).
*Installation is required even if you do not use CUDA.

If you have problems with GPU mode, check if your CUDA version and Python's GPU allocation are correct.

For Windows 11, assign Python.exe to a specific CUDA GPU from the multi-GPU list.
Note that multiple GPUs with the same model number can be confusing when distributing multiple versions of Python to multiple GPUs.
When operating multiple Diffuse, change the ports so that they do not overlap.
Start->Settings->Display->Graphics->GPU Affinity-> add Python.exe

*For older Geforces with no CUDA support that don't automatically switch to CPU mode, this step may fix the issue. (Keplor architecture or Older and Multi GPU or Hybrid Graphics System)
*Even if you don't have CUDA Tool Kit installed, you can use CPU mode by following this procedure as well. (Can avoid CUDA runtime errors)

xformers are not supported in CPU Mode. If you have set --xformers to bat file as an environment variable even once, please uninstall it.

*Administrator Console (PowerShell or Command Prompt)
PS C:\Users\user>cmd
C:\Users\user>c:
C:\Users\user>cd c:\stable-diffusion-webui-master
c:\stable-diffusion-webui-master>python -m venv ./venv
c:\stable-diffusion-webui-master>.\venv\Scripts\activate.bat
c:\stable-diffusion-webui-master>pip uninstall xformers

Change the alias settings if you have problems running Python.

---

When reverting to the GPU version

*For Windown+Radeon, you can use Shark Stable Diffuion (Vulkan MLIR/IREE Compiler).
https://github.com/nod-ai/SHARK/

Administrator Console (PowerShell or Command Prompt)

PS C:\Users\user>cmd
C:\Users\user>c:
C:\Users\user>cd c:\stable-diffusion-webui-master
c:\stable-diffusion-webui-master>python -m venv ./venv
c:\stable-diffusion-webui-master>.\venv\Scripts\activate.bat
c:\stable-diffusion-webui-master>pip install torch==1.13.0+cu113 torchvision==0.14.0+cu113 https://download.pytorch.org/whl/torch/

*A runtime error may occur if the version of the Geforce driver and CUDA toolkit and PyTorch Compatibility do not match.
*Other versions can be found here
https://download.pytorch.org/whl/torch/

Edit WebUI_user.bat for Low Vram CARD (4GB 512x512 Recommended)

set COMMANDLINE_ARGS=--medvram
or
set COMMANDLINE_ARGS=--medvram --opt-split-attention
or
set COMMANDLINE_ARGS=--lowvram --always-batch-cond-uncond --opt-split-attention

[Xenodimensional]

The CPU only mode didn't work and when I tried following the instructions to undo it my install was left in a broken state. YMMV.

[skunkmyrddyn]

I've tried following this, changed torch and the torchvision in the requirements so it will force those versions there as well.
However, on launch I get an error "No nvidia drivers" like it is still trying to use a non-existent GPU.