Lastly I installed CUDA-11.0 to Ubuntu-19.10. I tried simple simulation exxamples like nybody and also checked the version of CUDA . All is fine and working well.
I also tried to install OpenCV-4.3.0 with CUDA. But in cmake step of it we take many errors about CUDA. I am trying to solve these problems but my question is that CUDA-11.0 is compatible with OpenCV? Or whatever I do, it is not possible to install opencv with cuda-11.0 for now?