./deviceQuery showing FAIL on a p2.xlarge(GPU instance) on AWS

I am using an AWS instance(p2.xlarge) for my GPU experiments. I downloaded CUDA using ‘wget https://developer.nvidia.com/compute/cuda/9.0/Prod/local_installers/cuda_9.0.176_384.81_linux-run
chmod +x cuda_9.0.176_384.81_linux-run’
. I was able to successfully install the driver and work with it. When I stop the AWS instance and then restart it the next day, ./deviceQuery is giving the following error
[b]’
./deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

cudaGetDeviceCount returned 30
-> unknown error
Result = FAIL’
[/b]

and I am not able to use the GPU.

Pasting below the output when I gave ‘nvcc --version’ :-

‘nvcc: NVIDIA ® Cuda compiler driver
Copyright © 2005-2017 NVIDIA Corporation
Built on Fri_Sep__1_21:08:03_CDT_2017
Cuda compilation tools, release 9.0, V9.0.176’

Pasting below the output when I gave ‘nvidia-smi’:-

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

Please Help me solve the issue

my guess would be that a kernel update of some sort was applied when you stopped and restarted the instance, which broke the driver install