0 Replies Latest reply on Apr 18, 2016 5:16 AM by h_l

    OpenCL SVM support missing/incomplete on Windows platform.

    h_l

      Hi,

       

      after moving from Linux to Windows, the following SVM capabilities are missing: Fine grain system and Atomics. On the Linux platform both worked perfectly using the HSA software stack.

      Is the SVM implementation incomplete on Windows or do I have some driver issues here?

       

       

      Partial output of CLINFO (see attached file for the full output):

        Device Type:                                   CL_DEVICE_TYPE_GPU

      [...]

      SVM capabilities:
          Coarse grain buffer:                         Yes
          Fine grain buffer:                           Yes

          Fine grain system:                           No

          Atomics:                                     No

      [...]

        Unified memory for Host and Device:            1

       

      Futher, I was surprised, that the CPU doesn't SVM at all:

        Device Type:                                   CL_DEVICE_TYPE_CPU

      [...]

        SVM capabilities:

          Coarse grain buffer:                         No

          Fine grain buffer:                           No

          Fine grain system:                           No

          Atomics:                                     No

      [...]

        Unified memory for Host and Device:            1

       

      Thanks,

      Harald