Thanks Remco.
I don't understand this in depth because I don't know how opencl works within a
GPU.
However from your explanation I understand that there is a difference between
- the maximum amount of GPU memory available for dt module processing (as per
dt user manual > performance tuning) and
- the maximum opencl can get in one allocation request.
Marc.
-Oorspronkelijk bericht-
Van: Remco Viëtor
Verzonden: donderdag 13 juli 2023 7:12
Aan: darktable-user@lists.darktable.org
Onderwerp: Re: [darktable-user] Optimising GPU memory usage in dt 4.4.1 on
Windows ?
On mercredi 12 juillet 2023 22:35:10 CEST marc.ca...@gmail.com wrote:
> MAX MEM ALLOC:2048 MB
That's not the maximum darktable can use, it's the maximum opencl can get in
one allocation request (a quarter of the total GPU memory). See e.g.
https://registry.khronos.org/OpenCL/sdk/3.0/docs/man/html/clGetDeviceInfo.html
And of course, there usually are other programs also wanting GPU memory
(desktop manager, Firefox, ...)
Remco
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