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I'm looking to use OpenCL for Bitcoin mining. Obviously it is technologically possible to use a GPU and OpenCL without X; Windows machines do it all the time. I'm wondering if there is a way to use OpenCL on a graphics card on Linux or similar without installing/running X. About a year ago I read that this was not possible, but I figure that what I read may be incorrect and/or things may have changed in the last year.

Is it possible now? How can it be done? Would it provide any performance improvement (theoretical or actual) when mining Bitcoins?

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Have you tried any OpenCL sdk yet, ATI's or Nvidia's –  warl0ck Sep 6 '12 at 1:02
    
I, unfortunately, have not had a chance to try this on an actual computer yet. I was hoping to know more before then, but I may try soon. –  Daniel H Sep 8 '12 at 1:43
    
If I rememmber correctly, AMD is working on opencl without X dependency, but at the moment, wokring Xorg session is needed for opencl calculations on graphics card. –  UldisK Feb 5 '13 at 21:35

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You can use xvfb. I used it to run a download client based on mono and some graphical stuff on a machine without graphics card and monitor.

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I think you're answering the opposite question to the one being asked; he wants to access the graphics card without running X, while you are talking about running X without a graphics card. –  itsbruce Oct 9 '12 at 0:27
    
Ok, in that case some links: CUDA(Nvidia) on Fedora and on Ubuntu. A link for AMD and Intel. Hope it helps... –  max.haredoom Oct 9 '12 at 18:14

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