Since I have two old graphic cards (Nvidia GTX 980 Ti) and because Automatic1111/Stable Diffusion only use one GPU at a time I wrote a small batch file that adds a "GPU selector" to the context menu of Windows Explorer. This enables me to run Automatic1111 on both GPUs in parallel and so it doubles the speed as you can generate images using the same (or a different prompt) in each instance of Automatic1111.
I also tested creating a LoRA (using Kohya_ss) on one GPU and generating images on the other without problems!
One additional benefit: the second GPU has more VRAM available because it does not have additional OS related data in it.
You can download the tool here: https://www.48design.com/en/news/2023/05/16/ai-and-ml-arrived-at-everyday/
(scroll down to the end of the page)
I hope this helps others as well!
Since I have two old graphic cards (Nvidia GTX 980 Ti) and because Automatic1111/Stable Diffusion only use one GPU at a time I wrote a small batch file that adds a "GPU selector" to the context menu of Windows Explorer. This enables me to run Automatic1111 on both GPUs in parallel and so it doubles the speed as you can generate images using the same (or a different prompt) in each instance of Automatic1111.
I also tested creating a LoRA (using Kohya_ss) on one GPU and generating images on the other without problems!
One additional benefit: the second GPU has more VRAM available because it does not have additional OS related data in it.
You can download the tool here: https://www.48design.com/en/news/2023/05/16/ai-and-ml-arrived-at-everyday/
(scroll down to the end of the page)
I hope this helps others as well!