Gimp on Linux with OpenCL

[alain]

GIMP Version: 2.8.14
Operating System: Linux
OS Version: Ubuntu 20.10
GIMP Experience: Intermediate Level

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Hi,

I use GIMP 2.10.24 under Ubuntu 20.10 and I would like to improve the speed of my workflow, using my nVidia RTX2070 OpenCL features.

However I did not find any setting in Edit -> Preferences -> System Resources relative to OpenCL or nVidia (screenshot).

Any idea would be welcome.

Thx a lot.

[Tas_mania]

My installed Gimp 2.10.18 has an OpenCL setting but the later appimages I use are like yours. You are not missing anything 'cause OpenCL is experimental and it definitely causes crashes. It is not ready for Gimp users and I think thats why it's no in the menu at the moment.

OpenCL seems hard to implement for devs. I use a basic OCL in Mandelbulber but it hasn't been finished for years. It definitely speeds up graphics rendering and I think bitcoin mining also. Blender may have a working OCL but I'm not sure about that.

Anyway welcome to Gimp Chat from the Southern Hemisphere.

[PixLab]

You need to enable the "Playground" (.appimage / .deb package) and you will got this:


To enable the .AppImage's playground you need to add --show-playground after the target in your menu
example on my system (Ubuntu-MATE 20.04 / GIMP 2.10.25 from aferrero2707 continuous releases)


you can also use the gimprc file More about it -> (I'm new to gimp-chat and have not right to post an url, sorry [Your post looks too spamy for a new user, please remove off-site URLs. ])

[rich2005]

...you can also use the gimprc file More about it ...

A bit about it here: https://www.gimp-forum.net/Thread-Gimp- ... 7#pid23657

[PixLab]

...you can also use the gimprc file More about it ...

A bit about it here: Thread-Gimp-on-Linux-with-OpenCL?pid=23657#pid23657

Thanks a lot

[alain]

On the version 2.10.24 with ubuntu 20.10 it crashed when I use OpenCL with RTX2060, so i disable it to be able to work. It's a pity

[Tas_mania]

They are hardware level crashes and can scramble the user filesystem.

[PixLab]

They are hardware level crashes and can scramble the user filesystem.

Can you develop, be more explicit, like detailed explanations?
I am asking because, it's years that opencl is checked on my computer and never got a crash nor a file system scrambling (or by any application).

[Tas_mania]

Install 'clinfo' (sudo apt install clinfo)
run clinfo from a terminal and copy the results here. You may have a graphics setup that works with Gimp OpenCL or you may not have an OpenCL graphics installed.

[PixLab]

Code:

$ clinfo
Number of platforms       0

OK I start to understand, I was always wondering why Krita sometime or after a while was kicking in my graphic card (fans start to make noise like a jet taking off with after burners ), but GIMP never...
I did made a reading mistake in the setting of GIMP and Krita and mixed up OpenCL and OpenGL... not really seing the difference between G and C

So it seems that I don't have OpenCL installed...
Am I right?
If so, do you know how to install openCL (for AMD on Ubuntu-MATE 20.04, my card is a RX 580)?

[Tas_mania]

Sorry don't know about Radeon cards and OpenCL. I think it's built-in to the Ubuntu driver for Nvidia cards, I didn't do anything.
You'll have to search it.

[PixLab]

Sorry don't know about Radeon cards and OpenCL. I think it's built-in to the Ubuntu driver for Nvidia cards, I didn't do anything.
You'll have to search it.

I found some clues and way to install it
Thanks a lot