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OpenGL on dual GPU configurations
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OpenGL on dual GPU configurations
01-03-2018, 10:02 PM (This post was last modified: 01-03-2018, 11:37 PM by Der Siebte Schatten.)
#1
Der Siebte Schatten Offline
Großmeister der Finsternis
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Hello everyone,

I don't know a lot about graphics back-ends (I've never programmed something related to those, except a small Unity project), so forgive me if my question seems stupid.

On OpenGL setting, you can't choose which GPU will support the work charge, when you can with D3D11 or Vulkan. When I've first tested OpenGL several weeks ago on my configuration, I've hit stuttering rather quickly and Windows 10 Task manager showed that most of the work-charge went to the Intel HD 5600, rather to the nVidia GTX970M, which sounds awkward.
I've retested today, and it was much smoother than before, the work-charge being supported mostly by the nVidia GPU this time...

Hence my question: With OpenGL, how does it decide to give the work-charge on one GPU or the other, when you have multiple GPUs?

PS: Not sure if this should be posted in the dev section of the forum, don't hesitate to move it then...
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01-04-2018, 02:34 AM
#2
KHg8m3r Offline
Doesn't sleep, just Dolphin and Robots
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Don't use that drop-down. Go to the Nvidia Control Panel, 3D Settings, Manage 3D Settings, Program Settings and make a profile for Dolphin to use the high performance Nvidia GPU
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