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Thread: Newbie question - Only see one of two GPUs on Macbook Pro

  1. #1
    Junior Member
    Join Date
    Sep 2009
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    1

    Newbie question - Only see one of two GPUs on Macbook Pro

    I've got a MacBook Pro with the Nvidia 9400 and Nvidia 9600GT. However whenever I look for available GPUs I only ever see the 9400. I'd obviously like to take advantage of the 9600 GT as well. This is what I'm calling:
    err = clGetDeviceIDs(NULL, CL_DEVICE_TYPE_GPU, 0, NULL, &numDevices);

    Any ideas why the 9600GT is not visible?
    Thanks.

  2. #2
    Senior Member
    Join Date
    Jul 2009
    Location
    Northern Europe
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    311

    Re: Newbie question - Only see one of two GPUs on Macbook Pro

    Make sure you're in the high-performance graphics mode. Otherwise the non-integrated GPU will be disabled.

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