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some processes on my computer are using way too much video card memory for the tasks they're doing. I'd like to impose a limit on these tasks to have the OS limit the on-card RAM usage of these tasks. normally, I could use ulimit if the target were the file system, CPU, or system memory. This utility however does not seem to have any capabilities regarding the video card's memory within a PC.

So then this is my question: given that I know the path of an executable that I'd like to impose an upper limit on the consumption of video card memory for, how does one impose such a limit? The card in this case is NVidia based.

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  • If you reduce the video display resolution does the video ram consumption of these processes also get smaller? Commented Jul 17, 2023 at 5:29
  • @SottoVoce in this case, reducing from 4k to 2k does have a noticeable effect on the memory, though it is minor. Commented Jul 17, 2023 at 5:37
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    AFAIK that's currently not possible. No API for that, nothing on the side of NVIDIA. Commented Jul 17, 2023 at 8:27
  • @ArtemS.Tashkinov I'd agree with you. I think you should post your comment as answer! Commented Jul 17, 2023 at 8:47

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AFAIK that's currently not possible. No API for that, nothing on the side of NVIDIA.

That looks almost weird and irrational but then there's a likely rationale: GPUs, despite being masively parallel, are often/normally used to a run a single computational task. The only exception I can think of is your Display Manager and your system UI which are running in parallel at all times but then their memory/compute use should be negligible (unless your GPU is over 15 years old but then you shouldn't be running a modern OS and tasks on such an outdated device).

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