Nope… Thanks for letting me know a simple diagnostics.
When I do the followings
~ $ cd ~/NVIDIA_CUDA-9.2_Samples/0_Simple/vectorAdd
~/NVIDIA_CUDA-9.2_Samples/0_Simple/vectorAdd $ make
~/NVIDIA_CUDA-9.2_Samples/0_Simple/vectorAdd $ ./vectorAdd

I get
[Vector addition of 50000 elements]
Failed to allocate device vector A (error code CUDA driver version is insufficient for CUDA runtime version)!

What could I do then?
Thanks in advance.
EDIT
I just realized there is another source of the driver, the Web Driver. (link is here 30)
The installer of the Web Driver makes the pane in the System Preference. (named ‘NVIDIA Driver Manager’)
But the version of the Web Driver I installed is 387.10.10.10.40.105 which is lower than the one I’ve been previously using.
Of course, this time also I failed to run the CUDA samples properly.
In the meantime, I also tried CUDA 9.1 but with no luck.
It seems that CUDA with version equal or less than 9.0 is not supported in macOS 10.13.
Now I feel that making development environment of CUDA relative things in macOS is quite tough.
Wish somebody could help me on this issue.