Nvidia-driver not loaded. Centos 7.9

Recently I has updated the driver which was udpated from 515.48.07 to 550.90.12.
Then I also updated the CUDA tookkit from 11.7 to 12.4.1.

The above software were installed by rpm from Nvidia download.

The hardware is V100S.

After invoking nvidia-smi, the system said:

NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.

dkms status:

nvidia-open/550.90.12, 3.10.0-1160.el7.x86_64, x86_64: installed

Thanks in advance.

nvidia-bug-report.log.gz (170.3 KB)

It was fixed by re-installing the proprietary driver.

yum remove kmod-nvidia-open-dkms

then install the proprietary driver:

yum install nvidia-driver-latest-dkms

Thanks for the forum ;-)