How to make Flutter run on GPU-1

Question

When running flutter Windows application it defaults to GPU-0.

In my case GPU-0 is the default motherboard Intel UHD Graphics 630 processor. I also have a NVIDIA Quadro T1000 as GPU-1.

How I can instruct Flutter to run on GPU-1?

Answer 1

As per @cbraken:

I can imagine energy conscious users (e.g. laptop users) may want the opposite behavior. I imagine what you might want is something like new functionality in the API we expose to the C++ bits of the Flutter template that developers could use to specify whether their app would like to request to take advantage of the more performant GPU?

For one-off scenarios, you should be able to set this manually for your own use: https://www.howtogeek.com/351522/how-to-choose-which-gpu-a-game-uses-on-windows-10/

It doesn't appear that there's any such Windows API for doing this, but you could have the C++ runner portion of your Flutter app do this with a registry setting, though it's not picked up until the next run: Programmatically set Graphics Performance for an app

I'm not a Direct3D wizard, but a bit of quick searching didn't turn up any obvious API for this that wasn't driver-specific. If people have pointers, it's something we might consider. In the meantime, a few pointers to pages I ran into in a quick search:

Is there a way to programmatically select the rendering GPU in a multi-GPU environment? (Windows) Forcing Machine to Use Dedicated Graphics Card?