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Date: Tue, 9 Oct 2018 13:27:41 +0100
From: Gary Palmer <gpalmer@freebsd.org>
To: tech lists <tech-lists@zyxst.net>
Cc: Johannes Dieterich <dieterich.joh@gmail.com>, freebsd-current@freebsd.org
Subject: Re: drm confusion / xorg / AMD RX580 GPU
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On Mon, Oct 08, 2018 at 11:28:20PM +0100, tech lists wrote:
> On 08/10/2018 19:55, Johannes Dieterich wrote:
> >> 1. is this the right/fastest/best driver for this card?
> > Yes, amdgpu kernel module and amdgpu DDX
> 
> aha I didn't know about the xf86-video-amdgpu DDX requirement. OK, have
> installed that :D
> 
> >> 3. I'd like this card to crunch with boinc. What determines if this is
> >> possible? is it freebsd, boinc, the card driver, the project boinc is on
> >> or something else?
> > Depends what the boinc client uses. OpenCL - you will need graphics/clover which is not officially supported by AMD but may work. ROCm/HIP - won't work.
>  ok thnks for that. I saw no option for boinc_client to use OpenCL when
> building the port, so I installed opencl first, then linux-c7 (was c6
> before) then built boinc-client ensuring the option to take linux work
> was selected. The boinc project is World Community Grid.
> 
> I'm not able to immediately test as it's a friend's computer. He says it
> "displays great" but I'm looking for a way to quantify that. Hence the
> question how to test the cards capabilities.


Look in the BOINC logs.  There should be a co-processor section (I think)
if the GPU is found, else a log of "No usable GPUs found"

Gary