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Using OpenCL with the radeon driver to print Bitcoins ? is this posible?

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  • Using OpenCL with the radeon driver to print Bitcoins ? is this posible?

    I love the radeon driver very much and i love bitcoins.

    why not put it together?

    What is the OpenCL Feature status of the radeon driver ?

  • #2
    Tom got his first OpenCL sample program running yesterday...

    http://people.freedesktop.org/~cbril...ate=2012-02-27

    ... which is pretty cool.

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    • #3
      Originally posted by bridgman View Post
      Tom got his first OpenCL sample program running yesterday...

      http://people.freedesktop.org/~cbril...ate=2012-02-27

      ... which is pretty cool.
      Yes very cool :-)

      do have Tom a Bitcoin address to send him a coin ?

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      • #4
        Radeon wiki:"8 Out of source tree, proof of the concept support at the moment, support will be through gallium See GalliumCompute. "

        wen will openCL be in tree? instead of out of tree?

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        • #5
          http://dri.freedesktop.org/wiki/GalliumCompute

          "6 Only partial OpenCL support is possible, support through vertex shaders. "

          for the hd4000 series sure its theoretical possible but is there any work for hd4000 cards going on or do i need buy a newer card?

          it would be very nice

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          • #6
            r600 cards don't get openCL support???


            BTW props to Tom

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            • #7
              Originally posted by 89c51 View Post
              r600 cards don't get openCL support???
              R6xx cards don't have the necessary hw to fully support the entire OpenCL API; it would be limited to a certain subset. R7xx can support OpenCL over the gfx pipeline. Evergreen is the first generation of hardware with a native compute pipeline.

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              • #8
                @agd5f

                thanks



                a bit of topic but which card works well with FOSS drivers and will support OpenCL??. in other words what would you buy now

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                • #9
                  Your best bet for OpenCL support is evergreen or newer.

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                  • #10
                    The cheapest card to deliver good bitcoin performance (with the proprietary driver) is the 5830. The relative lack of ROPs doesn't affect mining. The most efficient dual-GPU card for mining is the 5970, and single-GPU card is the 7970, especially after undervolting the core and downclocking the memory.

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                    • #11
                      Originally posted by chithanh View Post
                      The cheapest card to deliver good bitcoin performance (with the proprietary driver) is the 5830. The relative lack of ROPs doesn't affect mining. The most efficient dual-GPU card for mining is the 5970, and single-GPU card is the 7970, especially after undervolting the core and downclocking the memory.
                      LOL ERROR(with the proprietary driver)ERROR
                      FAIL-
                      just watch the forum: Forum --> Linux Graphics / X.Org Drivers -->Open-Source AMD/ATI Linux


                      or do you think the people should buy the 5830 for the radeon driver?

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                      • #12
                        If a card gives relatively good bitcoin performance with the proprietary driver it seems reasonable to assume that it will behave similarly with the radeon driver once it supports OpenGL. I thought that was obivious.

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                        • #13
                          Originally posted by chithanh View Post
                          If a card gives relatively good bitcoin performance with the proprietary driver it seems reasonable to assume that it will behave similarly with the radeon driver once it supports OpenGL. I thought that was obivious.
                          ERROR"good bitcoin performance with the proprietary driver it seems reasonable to assume that it will behave similarly with the radeon driver"ERROR

                          Not really this way to think is just naive!

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                          • #14
                            Apart from a few exceptions (e.g. BFI_INT opcode) it is possible to use the full capability of the hardware with the proprietary driver for bitcoin mining. ALU performance is almost exclusively the determining factor for resulting Mhash/s. I expect that if the open driver can generate code that performs within N% within proprietary driver on hardware A, it will also run within ~N% on hardware B.

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                            • #15
                              In this case Q might have a point... the open drivers probably won't have the same level of shader compiler sophistication as the Catalyst drivers for a while, so my guess is that GCN-architecture parts will be able to make relatively better use of their potential hardware performance with the open compute stack than will comparable VLIW parts. Then again, IIRC the bitcoin code has already been partially vectorized to work well on VLIW hardware so maybe in the case of bitcoin mining he doesn't have a point after all

                              If you ignore the VLIW/GCN transition, however, I imagine relative performance with the Catalyst driver will be a decent predictor of relative performance with the open stack.

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