Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Martin Straeten]

For osx it’s very important to tweak opencl preferences in 
.config/darktable/darktablerc.
I found my macbookpro 16 gives best performance if used in opencl mode 
‚default‘ with forcing full pixelpipe being processed by amd gpu (1) and 
preview pixel pipe with cpu (-1) 
(opencl_device_priority=1,0,*/!1,!0,*/1,0,*/0,*/*) in combination with 
performance mode (new with upcoming 3.4) and reduced resolution of preview 
image. The other opencl modes prioritized the on chip gpu (0) at cost of speed 
...

You can evaluate the processing time and used gpu device runnig darktable from 
terminal:
darktable -d perf -d opencl | grep -e'processing took' -e'using device'
Happy tweaking ...

To enable opencl on osx 11 use the workaround described at 
https://github.com/darktable-org/darktable/issues/6918#issuecomment-727595566

Am 22.11.2020 um 19:05 schrieb Volker Lenhardt :

Hi Marc,

when I started dt two years ago for the first time on my new iMac-5k-screen, in 
full screen as I had been used to on my former HD screen, I was shocked by the 
slow performance. My first idea was to blame Apple. But when I did realize that 
full screen even extended the pixel size of my pictures I changed the mode of 
my operation. I reduced both the dt window and my distance from the screen, put 
my reading glasses on and eventually got a decent dt performance.

The point is that you shouldn't so much pay your attention to higher resolution 
but to more free screen space. What's the use of a 5k screen when you remove 
yourself from it so that it looks the same as a HD screen? We don't talk of UHD 
movies, do we.

All the best
Volker

> Am 22.11.20 um 16:04 schrieb Marc Cabuy:
> Hi Volker,
> Further to that opencl issue, that slow response time you had/have may be 
> related to the high resolution display.  That's my experience with dt 3.2.1 
> on Windows.  I now reduce my display resolution prior to editing (feels 
> stupid, I know). See also here: 
> https://www.mail-archive.com/darktable-user@lists.darktable.org/msg10305.html.
> I would be interested to hear whether that is an issue too on MAC.
> Marc.
> -Oorspronkelijk bericht-
> Van: Volker Lenhardt [mailto:volker.lenha...@uni-due.de]
> Verzonden: zondag 22 november 2020 12:26
> Aan: darktable-user@lists.darktable.org
> Onderwerp: [darktable-user] No Opencl on macOS 11 (Big Sur)
> After upgrading to macOS 11 (Big Sur) I experience very long response 
> behavior of DT on my 5K screen (iMac 2017), about at least double compared to 
> the already slow performance under macOS Catalina.
> Especially denoising is nerve-racking.
> I see that OpenCL isn't supported any more. There is Metal instead. Is there 
> a way out to sufferable working conditions?
> Stay healthy
> Volker
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org

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Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Volker Lenhardt]

Hi Marc,

when I started dt two years ago for the first time on my new 
iMac-5k-screen, in full screen as I had been used to on my former HD 
screen, I was shocked by the slow performance. My first idea was to 
blame Apple. But when I did realize that full screen even extended the 
pixel size of my pictures I changed the mode of my operation. I reduced 
both the dt window and my distance from the screen, put my reading 
glasses on and eventually got a decent dt performance.


The point is that you shouldn't so much pay your attention to higher 
resolution but to more free screen space. What's the use of a 5k screen 
when you remove yourself from it so that it looks the same as a HD 
screen? We don't talk of UHD movies, do we.


All the best
Volker

Am 22.11.20 um 16:04 schrieb Marc Cabuy:

Hi Volker,

Further to that opencl issue, that slow response time you had/have may be 
related to the high resolution display.  That's my experience with dt 3.2.1 on 
Windows.  I now reduce my display resolution prior to editing (feels stupid, I 
know). See also here: 
https://www.mail-archive.com/darktable-user@lists.darktable.org/msg10305.html.

I would be interested to hear whether that is an issue too on MAC.

Marc.

-Oorspronkelijk bericht-
Van: Volker Lenhardt [mailto:volker.lenha...@uni-due.de]
Verzonden: zondag 22 november 2020 12:26
Aan: darktable-user@lists.darktable.org
Onderwerp: [darktable-user] No Opencl on macOS 11 (Big Sur)

After upgrading to macOS 11 (Big Sur) I experience very long response behavior 
of DT on my 5K screen (iMac 2017), about at least double compared to the 
already slow performance under macOS Catalina.
Especially denoising is nerve-racking.

I see that OpenCL isn't supported any more. There is Metal instead. Is there a 
way out to sufferable working conditions?

Stay healthy
Volker

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Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Andreas Herold]

Hi Volker, Marc,

I can confirm, that opencl is not working any longer on Big Sur. Just in the 
days before the update to Big Sur I made some opencl benchmark tests 
(https://math.dartmouth.edu/~sarunas/darktable_bench.html 
). Opencl worked fine 
that time. Now I have repeated the test (after upgrade to Big Sur) and I see, 
that opencl is not working at all.

0.047200 [opencl_init] could not find opencl runtime library 
'/System/Library/Frameworks/OpenCL.framework/Versions/Current/OpenCL'
0.047209 [opencl_init] no working opencl library found. Continue with opencl 
disabled
0.047213 [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
0.047216 [opencl_init] initial status of opencl enabled flag is OFF.

Andreas

> Am 22.11.2020 um 16:04 schrieb Marc Cabuy :
> 
> Hi Volker,
> 
> Further to that opencl issue, that slow response time you had/have may be 
> related to the high resolution display.  That's my experience with dt 3.2.1 
> on Windows.  I now reduce my display resolution prior to editing (feels 
> stupid, I know). See also here: 
> https://www.mail-archive.com/darktable-user@lists.darktable.org/msg10305.html.
> 
> I would be interested to hear whether that is an issue too on MAC.
> 
> Marc.
> 
> -Oorspronkelijk bericht-
> Van: Volker Lenhardt [mailto:volker.lenha...@uni-due.de] 
> Verzonden: zondag 22 november 2020 12:26
> Aan: darktable-user@lists.darktable.org
> Onderwerp: [darktable-user] No Opencl on macOS 11 (Big Sur)
> 
> After upgrading to macOS 11 (Big Sur) I experience very long response 
> behavior of DT on my 5K screen (iMac 2017), about at least double compared to 
> the already slow performance under macOS Catalina. 
> Especially denoising is nerve-racking.
> 
> I see that OpenCL isn't supported any more. There is Metal instead. Is there 
> a way out to sufferable working conditions?
> 
> Stay healthy
> Volker
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
> 
> 
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
> 



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Re: [darktable-user] optimization of opencl performance for NVIDIA GTX .... : settings in file darktablerc

[Marc Cabuy]

Hello Šarūnas Burdulis, I can offer the before/after in file darktablerc for opencl on my gpu (NVIDIA GeForce RTX 2080 with Max-Q): Changedopencl_async_pixelpipe=TRUEopencl_memory_headroom=1536opencl_memory_requirement=6144opencl_micro_nap=0opencl_number_event_handles=1024opencl_synch_cache=TRUE    Before Change /  Defaultopencl_async_pixelpipe=falseopencl_memory_headroom=400opencl_memory_requirement=768opencl_micro_nap=1000opencl_number_event_handles=25opencl_synch_cache=active module The opencl_micro_nap is at zero since my display is connected to the integrated gpu of the Intel processor chip.  Marc.

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RE: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Marc Cabuy]

Hi Volker,

Further to that opencl issue, that slow response time you had/have may be 
related to the high resolution display.  That's my experience with dt 3.2.1 on 
Windows.  I now reduce my display resolution prior to editing (feels stupid, I 
know). See also here: 
https://www.mail-archive.com/darktable-user@lists.darktable.org/msg10305.html.

I would be interested to hear whether that is an issue too on MAC.

Marc.

-Oorspronkelijk bericht-
Van: Volker Lenhardt [mailto:volker.lenha...@uni-due.de] 
Verzonden: zondag 22 november 2020 12:26
Aan: darktable-user@lists.darktable.org
Onderwerp: [darktable-user] No Opencl on macOS 11 (Big Sur)

After upgrading to macOS 11 (Big Sur) I experience very long response behavior 
of DT on my 5K screen (iMac 2017), about at least double compared to the 
already slow performance under macOS Catalina. 
Especially denoising is nerve-racking.

I see that OpenCL isn't supported any more. There is Metal instead. Is there a 
way out to sufferable working conditions?

Stay healthy
Volker

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Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Volker Lenhardt]

OT: After 20 years with Linux I switched to Apple two years ago. Living 
now with some cons I experience sufficiently enough pros to stay by it. 
After all there's a Linux VBox :-)


Am 22.11.20 um 12:47 schrieb Matt Maguire:
Apart from blowing away Big Sur and installing Linux? Not sure... I'm 
still on Mojave, and thinking this will probably be my last Mac...




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Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Volker Lenhardt]

Thank you. The workaround helps. I am relieved.

Have a good time.

Am 22.11.20 um 12:36 schrieb parafin:

https://github.com/darktable-org/darktable/issues/6918


On Sun, 22 Nov 2020 12:25:55 +0100
Volker Lenhardt  wrote:


After upgrading to macOS 11 (Big Sur) I experience very long response
behavior of DT on my 5K screen (iMac 2017), about at least double
compared to the already slow performance under macOS Catalina.
Especially denoising is nerve-racking.

I see that OpenCL isn't supported any more. There is Metal instead. Is
there a way out to sufferable working conditions?

Stay healthy
Volker

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Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[parafin]

https://github.com/darktable-org/darktable/issues/6918


On Sun, 22 Nov 2020 12:25:55 +0100
Volker Lenhardt  wrote:

> After upgrading to macOS 11 (Big Sur) I experience very long response 
> behavior of DT on my 5K screen (iMac 2017), about at least double 
> compared to the already slow performance under macOS Catalina. 
> Especially denoising is nerve-racking.
> 
> I see that OpenCL isn't supported any more. There is Metal instead. Is 
> there a way out to sufferable working conditions?
> 
> Stay healthy
> Volker
> 
> darktable user mailing list
> to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
> 

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Re: [darktable-user] No Opencl on macOS 11 (Big Sur)

[Matt Maguire]

Apart from blowing away Big Sur and installing Linux? Not sure... I'm still
on Mojave, and thinking this will probably be my last Mac...

On Sun, 22 Nov 2020 at 22:34, Volker Lenhardt 
wrote:

> After upgrading to macOS 11 (Big Sur) I experience very long response
> behavior of DT on my 5K screen (iMac 2017), about at least double
> compared to the already slow performance under macOS Catalina.
> Especially denoising is nerve-racking.
>
> I see that OpenCL isn't supported any more. There is Metal instead. Is
> there a way out to sufferable working conditions?
>
> Stay healthy
> Volker
>
> 
> darktable user mailing list
> to unsubscribe send a mail to
> darktable-user+unsubscr...@lists.darktable.org
>
>


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[darktable-user] No Opencl on macOS 11 (Big Sur)

[Volker Lenhardt]

After upgrading to macOS 11 (Big Sur) I experience very long response 
behavior of DT on my 5K screen (iMac 2017), about at least double 
compared to the already slow performance under macOS Catalina. 
Especially denoising is nerve-racking.


I see that OpenCL isn't supported any more. There is Metal instead. Is 
there a way out to sufferable working conditions?


Stay healthy
Volker

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Re: [darktable-user] Reset the processing stack of some images

[Remco Viëtor]

On dimanche 22 novembre 2020 10:06:29 CET bjodev wrote:
> Hello DT-Users,
> is there any easy way to discard the processing stack of a bunch of
> images, without resetting the stack manually for each of them?
> I want to redo some of my edits, without reimporting the images, as I
> would loose the rating and tagging on those images.
> 
> So I am looking for a "fresh start" that only affects the edits and not
> the rating, tagging, geopositioning etc.
Select the images in the lighttable view, go to the "history stack" panel in 
the right sidebar, and click "discard history".

Alternatively, and that would allow comparing the new edit with the old,
go into darkroom mode and use the duplicate manager to create a "virgin" copy. 
Afaik, that preserves tagging and such, but starts with a minimal history 
stack. Note that such a "duplicate" does *not* copy the image itself, it just 
creates a new entry for editing (and an extra sidecar file, if you write 
those)

Remco



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Re: [darktable-user] Reset the processing stack of some images

[eric bruggeman]

Hi there,

Select that bunch of  images and then in lighttable > history stack > 
discard history


system asks: do you really want to clear history of ### selected images?

answer either NO or YES

Greets, Eric.

Op 22/11/2020 om 10:06 schreef bjodev:

Hello DT-Users,
is there any easy way to discard the processing stack of a bunch of 
images, without resetting the stack manually for each of them?
I want to redo some of my edits, without reimporting the images, as I 
would loose the rating and tagging on those images.


So I am looking for a "fresh start" that only affects the edits and 
not the rating, tagging, geopositioning etc.


Thanks for any help
Greetings
Bernd

 


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[darktable-user] Reset the processing stack of some images

[bjodev]

Hello DT-Users,
is there any easy way to discard the processing stack of a bunch of 
images, without resetting the stack manually for each of them?
I want to redo some of my edits, without reimporting the images, as I 
would loose the rating and tagging on those images.


So I am looking for a "fresh start" that only affects the edits and not 
the rating, tagging, geopositioning etc.


Thanks for any help
Greetings
Bernd


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