install cuda

https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&target_distro=CentOS&target_version=7&target_type=rpmlocal

wget https://developer.download.nvidia.com/compute/cuda/11.0.3/local_installers/cuda-repo-rhel7-11-0-local-11.0.3_450.51.06-1.x86_64.rpm
sudo rpm -i cuda-repo-rhel7-11-0-local-11.0.3_450.51.06-1.x86_64.rpm
sudo yum clean all
sudo yum -y install nvidia-driver-latest-dkms cuda
sudo yum -y install cuda-drivers