"tuned GPU memory" option grayed out as "not available"

Software darktable
1

Hi.
I use a notebook with amd CPU and alzo a dedicated nvidia gtx 3060 card.
I just migrated to fedora and compiled as usual darktable from source.
Under the “processing” tab in the options, I get this in the OpenCL section:

immagine
immagine510×324 18.4 KB

Is it normal that the “tuned gpu memory” says “not available”?
I don’t remember with the previous ubuntu installation but it may be that it was active.

Also, should I use “multiple GPU” as on the notbook there also is an integrated GPU on the CPU, or better use “very fast GPU”?

Thanks in advance for any help/suggestion.

2

Run from the command line and see if both GPUs are detected. The setting is only available if you have multiple GPUs.

3

image
image1255×620 147 KB

I think that it sees only the discrete one.

4

Check recent threads, there has been discussion about getting AMD up and running. Although I must say, you may be better off just using the Nvidia card: it’s probably so much faster than the embedded one that you may even lose performance if some work gets executed on that one.

5

Yeah I know, anyway the core of my post was indeed about the “tuned gpu memory” option being greyed out.

6

That feature is now disabled from the GUI. It is not a safe option that can result in dt using more memory than what it is available. You can still enable it via darktablerc but I discourage you from turning it on.

I think the plan is to was to remove it from GUI in the future but I don’t recall the GitHub discussion in detail.

1 Like
7

I already answered your question yesterday on Facebook, and I quoted the documentation of the setting (unfortunately, it’s not visible on the UI, if the option is unavailable).

8

I didn’t see your response on FB until now, don’t know why. I only saw the other answer directing me here. Sorry.

9

Perfectly clear. I was afraid that it was a compilation error on my system.

10

I am on DT 5.3 Windows and this option is available on my laptop. So should I use it or not? From @g-man response above I presume I shouldn’t.

11

Hello g-man,

What is the current status?

It is available on my PC with AMD 7945HX and AMD 9060XT 8GB.
It is not available on my tablet with AMD Al Max+ 395 with AMD 8060S.

Arch Linux - CachyOS + DT 5.4 on both.

I searched Github and found nothing new on the subject. The open post refers to a different problem.

Screenshot_20260104_124859
Screenshot_20260104_1248591307×416 33 KB

What is the current recommendation on how it should or should not be used?

Best regards, Chris

12

Nothing changed from the statement above. Disabled by default unless you modify darktablerc. Also, you should search on GitHub without the state:open

13

Danke dir für die schnelle Antwort.

As you can see in the screenshot, there is also a “Closed” tab, and I look at those pages as well.
Or do I see even more results with your suggestion?

14