Problems using OpenMP with OpenCV

English Applications
1

Hi everyone,

I already asked this question in the german OpenSuSE forum, but yet got no answer.

I try to work with OpenCV (computer vision library) and OpenMP (multiprocessing library). If I enable OpenMP without OpenCV, my parallelization works fine. If I enable OpenCV additionally, no multiprocessing works anymore. I also asked this question in stackoverflow. The issue is known already. The solution would be to build OpenCV manually with Cmake and add a certain compiler flag. Here is the link to my stackoverflow post: https://stackoverflow.com/questions/65743267/does-opencv-suppress-openmp?noredirect=1#comment116352635_65743267

The solution given is for Ubuntu. My question is now, how can I “translate” this solution to OpenSuSE? I am not familiar with Cmake, so any help would be great.

I am using OpenCV 4.1 which I built using the official repositories.

Thanks

Phtagen

2

For best results use OpenCL or CUDA or oneAPI and run your tasks on GPU(s): https://opencv.org/opencl/ .

https://software.opensuse.org/package/opencv

3

Ok,

thanks Svyatko for the nice hint. This does not really address my question, but anyways…

Points out, that actually no “translation” was needed. I easily could build OpenCV with Cmake according to the answer of my stackoverflow question (see the link in my original question). And finally, it worked…

So, problem solved…