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Thread: AMD Publishes Compute Support For RadeonSI

  1. #1
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    Default AMD Publishes Compute Support For RadeonSI

    Phoronix: AMD Publishes Compute Support For RadeonSI

    The AMD "RadeonSI" Gallium3D driver now has basic compute (GPGPU/OpenCL) support...

    http://www.phoronix.com/vr.php?view=MTMyNjI

  2. #2
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    Quote Originally Posted by phoronix View Post
    Phoronix: AMD Publishes Compute Support For RadeonSI

    The AMD "RadeonSI" Gallium3D driver now has basic compute (GPGPU/OpenCL) support...

    http://www.phoronix.com/vr.php?view=MTMyNjI
    This is big!

    It's not complete yet, of course, and not useful for many apps, but OpenCL support is crazy hard, and we are getting there!

  3. #3
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    It must be all that difficult LLVM/Clang design architecture that is making the R600 back end expand rapidly so people will benefit from it and its upcoming quality OpenCL backend.

  4. #4
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    What about r600g?
    And more general question:
    Who in AMD tell FLOS gpu driver devs what to focus on? Is it self-organizing work? Or there are some strong guidelines from above (like get X for Y familly of chips..)

  5. #5
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    Quote Originally Posted by przemoli View Post
    What about r600g?
    And more general question:
    Who in AMD tell FLOS gpu driver devs what to focus on? Is it self-organizing work? Or there are some strong guidelines from above (like get X for Y familly of chips..)
    ISA of R600 chips makes supporting OpenCL completely extremely difficult.
    But SI works in a more developer-friendly fashion.
    Personally I prefer a complete SI compute support rather than two broken ones (Evergreen and SI), considered the insufficient manpower of OSS radeon team.

  6. #6
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    Quote Originally Posted by przemoli View Post
    What about r600g?
    And more general question:
    Who in AMD tell FLOS gpu driver devs what to focus on? Is it self-organizing work? Or there are some strong guidelines from above (like get X for Y familly of chips..)
    r600g has had this basic compute support for a while now. It's available in Evergreen and newer chips (Radeon 5000 series and higher). Radeon 4000-series and lower are missing some of the required hardware features, so I'm not sure what the current status is (I sold my last 4770 a while ago). Maybe the 4000-series has partial support...

    Some of the developers, such as Tom Stellard who wrote these patches, are AMD employees. I'm assuming that they are told what to focus on (or they get to choose projects that their managers approve of... *shrug*). The others who aren't AMD employees get to work on whatever they want. In my case, I volunteer some of my free time working on OpenCL unit tests for clover (found in Piglit). I do it to scratch an itch, but everyone gets to benefit.

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