Hello Murray,
OpenCL is currently not exposed by the nv50 driver — the one used by your
9400 GT as well as the 9800 GT when using Nouveau.
It is a work-in-progress though and I could give you some instructions on how
to get it going, but bear in mind that you will need to build a custom version
of Mesa and it is still failing some of the basic OpenCL-CTS tests.
OpenCL status can now be followed via mesamatrix.net, though you will need to
scroll down past OpenGL and Vulkan to see it: https://mesamatrix.net/#OpenCL.
As you can see there, nv50 is not listed as supported.
Best,
Pierre
On 2021-07-30 — 17:43, Murray Van Luyn wrote:
> Hi,
>
> Prolly not the most on-topic post, so I'll keep it brief. Couldn't seem to
> find a move conversant crowd in other lines of enquiry.
>
> I posted a question concerning inability to access GPU hardware, after
> installing mesa-opencl-icd on Ubuntu.
>
> https://askubuntu.com/questions/1354592/installing-mesa-opencl-for-nvidia
>
> I've exhausted all lines of investigation into the problem myself, and could
> really use some professional help.
>
> Anyone, please?
>
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