NVIDIA NVML Driver/library version mismatch
When I run nvidia-smi I get the following message:
Failed to initialize NVML: Driver/library version mismatch
An hour ago I received the same message and uninstalled my cuda library and I was able to run nvidia-smi, getting the following result:
After this I downloaded cuda-repo-ubuntu1604-8-0-local-ga2_8.0.61-1_amd64.deb from the official NVIDIA page and then simply:
sudo dpkg -i cuda-repo-ubuntu1604-8-0-local-ga2_8.0.61-1_amd64.deb
sudo apt-get update
sudo apt-get install cuda
export PATH=/usr/local/cuda-8.0/bin${PATH:+:${PATH}}
Now I have cuda installed, but I get the mentioned mismatch error.
Some potentially useful information:
Running cat /proc/driver/nvidia/version I get:
NVRM version: NVIDIA UNIX x86_64 Kernel Module 378.13 Tue Feb 7 20:10:06 PST 2017
GCC version: gcc version 5.4.0 20160609 (Ubuntu 5.4.0-6ubuntu1~16.04.4)
I'm running Ubuntu 16.04.2 LTS.
Kernel release is: 4.4.0-66-generic.
Thanks!
Answer
Surprise surprise, rebooting solved the issue (I thought I had already tried that).
The solution Robert Crovella mentioned in the comments may also be useful to someone else, since it's pretty similar to what I did to solve the issue the first time I had it.