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CUDA programming question

Discussion in 'HTML, Graphics & Programming' started by Cromulent, Oct 12, 2018.

  1. Cromulent

    Mobster

    Joined: Nov 1, 2007

    Posts: 2,733

    I have an Nvidia 1080Ti in my main computer which is currently running Linux. I also have an old 980Ti in a computer that doesn't need such a powerful graphics card. I was thinking of getting a really cheap graphics card to replace the 980Ti in the old computer and then putting the 980Ti in the same computer as the 1080Ti.

    Would I be able to use both the 1080Ti and the 980Ti in the same computer? Would that result in better CUDA and AI performance?
     
  2. AHarvey

    Sgarrista

    Joined: Mar 6, 2008

    Posts: 8,929

    Location: Stoke area

    I've not heard of CUDA but it looks interesting, what are you using it for?

    I have no idea if CUDA will be able to use 2 different cards in a single machine, it'll be interesting to find out though.

    https://developer.nvidia.com/cuda-faq
    Yes to multiple GPU's but no mention of mode;

    https://stackoverflow.com/questions/36758522/cuda-multiple-gpus-all-gpus-the-same-model
    Confirms they can be different.

    Not sure on performance though but I guess it depends how you've written the code. One would assume that more is better in this case regardless of them being different.
     
  3. Cromulent

    Mobster

    Joined: Nov 1, 2007

    Posts: 2,733

    I want to do some AI stuff. Plus I just switched over to Linux from Windows 10 and one of my pet projects was doing GPU passthrough to a Windows 10 virtual machine and for that you need two GPUs (one for the host and one for the guest) so I thought I might as well use the 980Ti when I wasn't running a virtual machine.

    I know you can accelerate some AI tasks using CUDA so I thought I'd get into that field a little bit as I don't know much about it.

    Thanks for the links. That makes me feel better about doing this. I dread to think what my electricity bill is going to be though :).