My OS is Ubuntu 16.04 LTS and GPU is GeForce 1060. I have already installed CUDA Toolkit 9.1 on my PC several days ago, which was confirmed by running the default NVIDIA_CUDA-9.1_sample ‘deviceQuery’ and ‘bandwith’.
However, when I am running the command nvidia-smi today, an error shows up as:
NVIDIA-SMI has failed because it couldn’t communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running.
During the last two days, I tried to install the PGI Community Eidtion 17.10 in order to try out the OpenACC library with Fortran programs. I stopped the PGI installation at the procedure that asked whether to install CUDA Toolkit or not, because I am not sure if this will confilict my already installed CUDA. I do not know if the PGI installation is related to the error and how to fix. Thanks for the help.