9 Replies Latest reply on Dec 16, 2013 5:19 PM by yurtesen

    OpenCL with no X-server on Linux

    tzachi.cohen

      Hi All,

       

      I don't know if this little documented feature was discussed here before.

      In case it hasn't it is worth mentioning:

      Due legacy considerations the AMD OpenCL software stack was bound to graphics and users had to enable the X-server in order to enjoy compute.

      This is no longer completely true!!

      In recent drivers it is possible to use AMD OpenCL when the X-server is down as long as you have root privileges.

      (just type 'sudo clinfo' when the X-server is down to see the list of available devices) . This feature is called "console mode".

      If the X-server is up then business is as usuall, users have to define an X-display for the GPU (sudo aticonfig --initial --adapter=all) in order to use it for compute.