Choosing a Graphics Device

I've looked everywhere I can think of and still can't figure out how to choose a graphics device.  My current issue is when I run my application on a Dell laptop with two graphics cards (integrated Intel and Nvidia).  If I run it on the laptop hooked up to an external monitor or docking station is utilizes the Nvidia graphics device.  If I run the application using only the laptop monitor it utilizes the integrated Intel graphics device.  Is this something that can be overridden?  This application utilizes a custom built framework that needs to work the same (or at least similar) for Windows, Linux, and Mac when rendered in AWT, SWT, or NEWT.

Hi

There is an API for that, Nvidia GPU affinity, but it isn't available in JOGL yet:
http://www.opengl.org/registry/specs/NV/gpu_affinity.txt

There is an example of use here:
https://github.com/Eyescale/Equalizer/blob/master/tools/affinityCheck/affinityCheck.cpp

On 01/21/2014 05:12 PM, gouessej [via jogamp] wrote:
> Hi
>
> There is an API for that, Nvidia GPU affinity, but it isn't available in JOGL
> yet:
> http://www.opengl.org/registry/specs/NV/gpu_affinity.txt

We may need to earmark that (i.e. add enhancement bug report).
Anybody willing to add this extension is welcome ofc.

>
> There is an example of use here:
> https://github.com/Eyescale/Equalizer/blob/master/tools/affinityCheck/affinityCheck.cpp

You may also simply change some settings of your graphics card,
AFAIK you can tell which GPU shall be used for which application etc ..
At least this is true on Window w/ NV+Intel.

~Sven

You're right. It's possible to choose the "Performance" profile under Windows with Nvidia configuration tool. I'm almost sure Martin already did that once, he posted a screen capture here about that.

Thanks for the quick replies.

I've tried setting the default device using the Nvidia configuration tool but that doesn't seem to work.  However, I haven't spent much time going down this route because ultimately this type of workaround falls short of a solution for a deployed application (at least in my case.)