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  • lankage
    Member
    • Oct 2014
    • 20
    #1

    soap3-dp using the -c device id option with multiple gpus

    Has anyone managed to get soap3-dp's -c option to function correctly? If so what is the format?

    -c [GPU device ID] Specify the GPU device for running SOAP3-dp;

    2 GeForce GTX 780 Off | 0000:07:00.0 N/A

    I've tried -c 7 , -c 0000:07:00.0 , -c 07:00.0 to no avail. soap3-dp just uses the video card with the lowest bus-id regardless.

    I have tried various formats of the device identifier based on the nvidia-smi output bus id.
    Tags: None
  • lankage
    Member
    • Oct 2014
    • 20
    #2
    Nevermind - SOLVED

    soap3-dp uses the device id as assigned by the CUDA driver installed.
    in my /usr/local/cuda/samples ran ./deviceQuery
    CUDA shows:
    deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 7.0, CUDA Runtime Version = 6.0,
    NumDevs = 3, Device0 = GeForce GTX 980, Device1 = GeForce GTX 980, Device2 = GeForce GTX 780
    Result = PASS
    device ids assigned 0 - 2.

    soap3-dp -c <0,1 or 2>

    Comment

    • HenrivdGeest
      Member
      • Feb 2012
      • 16
      #3
      Thanks for your reply, and fix!
      How does soap3 anyway performs compared to soap2 on cpu?

      Comment

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