If I have both AMD and NVIDIA?

[evilblade666]

Hi folks!
Yesterday I've assembled an old computer at home specifically to use with SD (and maybe other AIs).
When it came to installing AUTOMATIC1111 I've noticed that it downloads some rocm version of torch and then gives me an error of something like "couldn't find a version that satisfies..." Anyway, Googling what this rocm is in the first place, gave me an answer that it's a thing for AMD cards... But that made me scratch my head like "Why?! I clearly have an NVIDIA card, driver installed, nvidia-smi shows it's info, everything's fine!"
But then I've remembered that this motherboard has an AMD card as an integrated video! So I've opened webui.sh and found-out that it greps from lspci output and if it's an AMD - downloads rocm packs and if NVIDIA - then cuda ones. And lspci on this machine indeed shows AMD card before NVIDIA in a list of devices.
So I've just commented-out the parts where it checks for AMD and downloads rocm packages. That seemed to do the trick and it started downloading torch??cu*something.. But it was already like 3a.m. and I've decided to continue this process tomorrow, lol.
So my question is - is there some more elegant way of archiving this other then "surgically" removing parts of the script?
Maybe there's some key to force CUDA or something?

[w-e-w]

is there some more elegant way of archiving this other then "surgically" removing parts of the script?

the intended way for you to use whichever pytorch you need is for you to set the environment variable TORCH_COMMAND is the
in webui-user.sh

stable-diffusion-webui/webui-user.sh

Lines 27 to 28 in 82a973c

	# install command for torch
	#export TORCH_COMMAND="pip install torch==1.12.1+cu113 --extra-index-url https://download.pytorch.org/whl/cu113"

TORCH_COMMAND contains the command that we execute when installing pytorch

if TORCH_COMMAND is empty or unset webui.sh will run several test to try and determine what Hardware you have and set TORCH_COMMAND based on the results
the test is rudimentary and it can certainly be wrong at times especially when you have a mix of hardwares

[evilblade666]

Hmm.. OK, and how do I get this line for say currently istalled torch? I've ended up launching A1111 with a "python3 launch.py --and_some_keys" command, and on a first launch it downloaded/intalled me a torch 2.5..something.
I'm asking this because I'm thinking of trying reForge here and don't want it to download/install a different version.

[w-e-w]

if you use webui.sh to launch webui it will launch based on the configuration defined in webui-user.sh
by default this includes creating a venv (a python virtual environment) to install its dependencies including torch and other things

we use a new venv because this allows web UI to install on to "a clean state" without the need of worrying about other packages that you may have installed, making installation much more easier

using a standalone venv for each project is common practice in Python

since by default we create a new venv for webui then it will install its own version of torch as it was not installed

if you have multiple instances of web UI or similar software you could potentially share the same vevn as long as you're willing to take the risk of dependency issues that may occur

this is really only meant for people that knows what they're doing and are willing to fix any issues that occurs themselves

if you wish to share venv you can do so by specifying venv_dir environment variable in webui-user.sh
that's variable specifies the directory of the venv the webui will use (or create if it does not exist), so if you have them set to the same path then it will share the same venv

[missionfloyd]

If you don't need it, you can usually disable integrated graphics in the motherboard BIOS.

[evilblade666]

But, the thing is - I do. My Nvidia card in there is P104-100 and it has no video-out. I don't actually need a monitor connected to this machine locally since I SSH to it.. But if for some reason I'll need to use the local display (say for reinstalling OS or whatnot) and integrated video is disabled - than I'm basically screwed.