Author Topic: How can I choose the GPU in Linux and Windows?  (Read 1871 times)

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3dcube

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How can I choose the GPU in Linux and Windows?
« on: May 07, 2019, 06:47:48 PM »
Hi,

I want to test my GPU's to compare Linux / Windows performance.

I have 2 GPU's in my laptop: 1 integrated (GPU0) and 1 dedicated (GPU1)

How can I tell GpuTest which one it should test?

TIA


JeGX

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Re: How can I choose the GPU in Linux and Windows?
« Reply #1 on: May 08, 2019, 08:51:58 AM »
The current GpuTest is OpenGL only and on Windows only the primary GPU can be used for rendering. But some graphics drivers (NVIDIA for example) allow you to select the GPU (see here).  On Linux there is particular option for selecting the GPU. I'm working on the successor of GpuTest ( :P ) and I will try to add this option.

3dcube

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Re: How can I choose the GPU in Linux and Windows?
« Reply #2 on: May 09, 2019, 11:10:52 AM »
Thank you for the info.

Do you happen to know, how to select the GPU in Linux?
In Windows I can try with my Catalyst-center.

JeGX

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Re: How can I choose the GPU in Linux and Windows?
« Reply #3 on: May 09, 2019, 04:43:24 PM »
Do you happen to know, how to select the GPU in Linux?

I believe you can force the GPU by launching the app on the monitor connected to the GPU you want to test (assuming you have a monitor connector to each GPU). But I'm not sure. Maybe there is a way to force a particular display in command line using args like "localhost:0.1"...  Let me know if you find something interesting.