OpenCL on Intel HD graphics together with discrete GPU?

Discussion in '3D Hardware, Software & Output Devices' started by Grall, Jul 24, 2013.

  1. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,172
    Location:
    La-la land
    Supposedly, this is possible with recent Intel drivers, but I don't know how to enable it... Would be fun to try out.

    I've got a Haswell K-series system running windows8, btw.
     
  2. moozoo

    Newcomer

    Joined:
    Jul 23, 2010
    Messages:
    109
    Likes Received:
    1
  3. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,172
    Location:
    La-la land
    Newest drivers are supposed to allow OpenCL without requiring monitor to be connected, desktops to be extended and so on. ...Somehow.
     
  4. Dade

    Newcomer

    Joined:
    Dec 20, 2009
    Messages:
    206
    Likes Received:
    20
    It should work if you install latest Intel drivers. Try to run LuxMark, it will show you a CPU device, the Intel GPU device and any number of discrete GPU devices you have.
     
  5. Grall

    Grall Invisible Member
    Legend

    Joined:
    Apr 14, 2002
    Messages:
    10,801
    Likes Received:
    2,172
    Location:
    La-la land
    I have latest driver installed, multi-monitor activated in UEFI, and iGPU is visible in device manager even when running with discrete graphics, except it only shows up as OpenCL device if I plug a monitor cable into the mobo and boot the system with iGPU as default... :(

    Well, it might also work if I run off of discrete graphics too and just plug monitor cable into the mobo, I dunno. I haven't tested that, actually...

    I've tried this Luxmark thing, and also CLBenchmark, both give same result.

    Edit: yeah, plugging in a monitor cable makes iGPU show up as OpenCL device immediately. No cable though = no business.
     
Loading...

Share This Page

  • About Us

    Beyond3D has been around for over a decade and prides itself on being the best place on the web for in-depth, technically-driven discussion and analysis of 3D graphics hardware. If you love pixels and transistors, you've come to the right place!

    Beyond3D is proudly published by GPU Tools Ltd.
Loading...