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Thread: Copying data from GPU to another GPU

  1. #1
    Junior Member
    Join Date
    Jul 2011

    Copying data from GPU to another GPU

    In older versions of CUDA, was necessary to use main memory to copy data from one graphic card to another. In 4.0 we can do it without it - just one copying operation.
    Is this way possible in OpenCL?

  2. #2
    Senior Member
    Join Date
    May 2010
    Toronto, Canada

    Re: Copying data from GPU to another GPU

    Is this way possible in OpenCL?
    Such details are hidden from the application in OpenCL. Memory transfers between devices in the same context will happen automatically for you. You simply need to create a context with two devices.
    Disclaimer: Employee of Qualcomm Canada. Any opinions expressed here are personal and do not necessarily reflect the views of my employer. LinkedIn profile.

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