Checking the cudnn 8.x version

It's simple.

 

#Check the version of cuDNN 8.x or higher

$ cat /usr/local/cuda/include/cudnn_version.h | grep CUDNN_MAJOR -A 2

 

#Check the version of cudnn 7.x or earlier

$ cat /usr/local/cuda/include/cudnn.h | grep CUDNN_MAJOR -A 2

 

# Checking for several version

$ nvidia-smi

$ nvcc -V