How do I swap from GPU to CPU?

[LiamPerson]

During setup I chose to use my GPU but now I want to use the CPU. How do I swap from GPU to CPU?

[CataCluj]

I would also like an answer to this, please. Anybody?
The GPU I chose seems to be wrong; there are no easy uninstallation instructions, I worry about making a mess.
SOMEBODY should know, or it's a problem, eh?

[lufixSch]

What do you mean with "The GPU I chose seems to be wrong"?

[lufixSch]

For llama.cpp you can simply choose not to offload any layers to GPU. If that doesn't work, you can tick the "CPU" checkbox. Then it will use llama.cpp specifically build for CPU

[CataCluj]

I chose AMD or rocm. I have an iGPU/APU that I can allocate 16GB RAM to. It should work and be faster than CPU. However, AMD in their greatness make it impossible (at least to me) to use. So I can't use it.
It installed rocm-based-torch. I can choose to offload or not until I'm blue, it won't work.
There should be an easier, documented way.

[araleza]

To uninstall, you can just delete the text-generation-webiu directory. Because it uses a virtual environment, that will delete the application and all of its dependencies too. Again, because of the virtual environment, this deletion shouldn't affect anything else you have installed.

Do remember to get any models you've downloaded out of the models subdirectory first, if you want to keep them. Same for chats and character cards etc. that you've downloaded too.

[CataCluj]

Thank you @araleza.
I'm not sure what "webiu" means but I suppose you mean the whole directory, after I save my models elsewhere.
I always worry that even with venvs, something keeps track of them and that would be a loose end. I'm sure I don't understand all intricacies; maybe I'll learn in time.