CUDA is not available code example
Example 1: how to tell if i have cuda installed
C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.1\bin\win64\Release
Example 2: check if cuda installed
# nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2015 NVIDIA Corporation
Built on Tue_Aug_11_14:31:50_CDT_2015
Cuda compilation tools, release 7.5, V7.5.17