Cannot initialize model with low cpu memory usage because accelerate was not found in the environment.

[fogostudio]

Hello,
I'm getting the following warning:

Cannot initialize model with low cpu memory usage because `accelerate` was not found in the environment. Defaulting to `low_cpu_mem_usage=False`. It is strongly recommended to install `accelerate` for faster and less memory-intense model loading. You can do so with:

pip install accelerate

I'm using ComfyUI portable and ran the command using:

F:\ComfyUI_windows_portable\python_embeded>python -m pip install accelerate

it installed correctly but I'm still getting the same message, it is running, but it's taking forever... any ideas? thx !

[kijai]

Did it install successfully? If you do python.exe -m pip check does it report any issues? And if you do python.exe -m pip list is accelerate there?

[fogostudio]

Yes, it installed without issues and it is listed there:

F:\ComfyUI_windows_portable\python_embeded>python.exe -m pip list
Package                      Version              Editable project location
---------------------------- -------------------- --------------------------------
accelerate                   0.25.0

But for some reason I still get the warning.

[fogostudio]

I have diffusers 0.26.2.

[kijai]

Initially this used pretty old diffusers version, dunno how it runs with the latest. Accelerate helps with memory management but it shouldn't affect the sampling speed though from what I understood.

[fogostudio]

thanks a lot, I'm not sure what a normal run is, I'm like 15 minutes in and only 20% completed, seems stuck now.

[kijai]

For a single image? Definitely not normal, it can't handle very large images either, and putting n_repeat_batch_size to 1 would make it use least possible memory with fp16 on.

[fogostudio]

thanks again, will try to downgrade diffusers and downscaling my image.

Update: downgrading diffusers did nothing, still getting the warning, BUT downscaling the image helped, it executed it in 82.45 seconds, thanks for your help.