2 Replies Latest reply on Jan 27, 2015 9:46 PM by bsmith77

Can an OpenGL app default to the discrete GPU on an Enduro system?

bsmith77 Jan 21, 2015 12:03 PM

On a laptop with NVidia Optimus, there a several methods to get an OpenGL application to default to the discrete GPU, rather than the Intel integrated GPU. The easiest method is to export NvOptimusEnablement from your app (http://developer.download.nvidia.com/devzone/devcenter/gamegraphics/files/OptimusRenderingPolicies.pdf).

Is there any way to do this with an AMD GPU, other than through the Catalyst profile? If not, where can a company request support for their application's profile in the Catalyst driver? (the app is a commercial Solid Modelling/CAD package)

Re: Can an OpenGL app default to the discrete GPU on an Enduro system?

chm Jan 23, 2015 3:43 PM (in response to bsmith77)

Hi,
you can use:

extern "C"
{
__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
}
This will select the high performance GPU as long as no profile exists that assigns the application to another GPU.
Please make sure to use a 13.35 or newer driver. Older drivers do not support this.
Chris
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- Re: Can an OpenGL app default to the discrete GPU on an Enduro system?
  
  bsmith77 Jan 27, 2015 9:46 PM (in response to chm)
  
  We tested it out (with the 14.12 driver), and it works as expected. Thanks!
  
  I cross-posted your answer to the related forum question (Force high performance GPU programmatically on Switchable Graphics) and also on StackOverflow (gpu - AMD equivalent to NvOptimusEnablement - Stack Overflow).
  
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