Marc,
thank you very much for your warning!
As you see, the first step is done, and I can see a huge improvement in
browsing through the lighttable with the GTX 1650.
I was wondering too if it is worth to go to 4K, I wouldn't like to go
back to square one, performance wise.
Maybe 2560x1440 is the wise compromise, and I save a lot of money: I do
not really feel constraint at 1920x1200, I was suffering more for the
slow paging.
In the next few days I should receive a second hand Xeon E3, that might
boost further the overall performance.
-Gian
On 20/11/20 12:53, Marc Cabuy wrote:
Gian-Luca,
Just a little warning about purchasing a 4K display. You indeed will
need a good GPU. But still there is (or are) module(s) that are fully
cpu-bound. That’s the case with tone equaliser. Interactive response
when zooming and panning in the darkroom may suffer from poor response
time on a 4K display (3840x2160) when you have a tone equaliser module
activated in the module stack. That’s my experience with dt 3.2.1 for
Windows on my 16mp pictures. That issue is not existing that much on
my WQHD display (2560x1440) or almost not on a HD display (1920x1080).
I repeat: it’s experience with dt 3.2.1 for Windows. I am not aware on
how it behaves on Linux.
Marc
*Van: *GianLuca Sarto <mailto:[email protected]>
*Verzonden: *zondag 15 november 2020 21:30
*Aan: *[email protected]
<mailto:[email protected]>
*Onderwerp: *Re: [darktable-user] Ubuntu 20.04, OpenCL, DT3.2.1,
Radeon HD5400
thanks, Šarūnas,
I have two Darktable systems, based on Lenovo TS140, one with AMD, the
other with Nvidia Quadro 400.
Neither of the two manage OpenCL..
0.039390 [opencl_init] found opencl runtime library 'libOpenCL'
0.039412 [opencl_init] opencl library 'libOpenCL' found on your system
and loaded
0.042560 [opencl_init] found 1 platform
0.042582 [opencl_init] found 1 device
0.042727 [opencl_init] device 0 `Quadro 400' has sm_20 support.
0.042778 [opencl_init] discarding device 0 `Quadro 400' due to
insufficient global memory (511MB).
0.042784 [opencl_init] no suitable devices found.
0.042788 [opencl_init] FINALLY: opencl is NOT AVAILABLE on this system.
I would like to upgrade one of the two systems to a 4K display, so was
already decided to purchase a new video card.
Is there a tested solution that works out of the box, or a list of DT
OpenCL compliant cards for Linux?
On 15/11/20 15:34, Šarūnas wrote:
> On 11/14/20 3:41 PM, GianLuca Sarto wrote:
>> Hello All,
>>
>> DT 3.2.1 here, running on Ubuntu 20.04, Radeon HD5400.
>>
>> OpenCL should be working, however DT complains "could not get
platforms"
>> (see below).
> Support for Radeon HD5xxx may have ended with fglrx (Ubuntu 16.04?).
>
> You may check what is currently supported,
> by proprietary AMDGPU-PRO:
> https://www.amd.com/en/support
>
> by open source ROCm:
> https://github.com/RadeonOpenCompute/ROCm#Hardware-and-Software-Support
>
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