Download and use CUDA repo on CentOS 8
1. open broser and go to https://developer.download.nvidia.com/compute/cuda/repos/rhel8/x86_64/cuda-rhel8.repo
or download
https://developer.download.nvidia.com/compute/cuda/repos/rhel8/x86_64/cuda-repo-rhel8-10.1.243-1.x86_64.rpm
2.
$ su -
$ cp cuda-rhel8.repo /etc/yum.repos.d/
or
$ rpm -ivh cuda-repo-rhel8-10.1.243-1.x86_64.rpm
3.
$ dnf update
References
https://developer.download.nvidia.com/compute/cuda/repos/rhel8/x86_64/