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Thread: Take base address of Memory Object

  1. #1
    Junior Member
    Join Date
    Jan 2013
    Posts
    5

    Take base address of Memory Object

    How can I get back a pointer to device memory when creating buffers?
    There is a solution here http://www.proxya.net/browse.php?u=%3A% ... D2900&b=28 but it does not work.

  2. #2
    Senior Member
    Join Date
    Dec 2011
    Posts
    152

    Re: Take base address of Memory Object

    A host-side pointer to device-side memory? You can't do that in OpenCL. The closest would be using clEnqueueMapBuffer to get a host-side pointer to a buffer that the device can access. Note: This will incur PCIe bus transfers to make the data host-accessible and then get it back on the device during the unmap operation.

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