When installing the library from this library :
https://github.com/dnouri/cuda-convnet
I came across this error :
invalid device function cudaGetLastError()
All I had to do was to comment this line in the CMakeLists.txt file
#list(APPEND CUDA_NVCC_FLAGS -gencode arch=compute_30,code=sm_30)
and uncomment this line
list(APPEND CUDA_NVCC_FLAGS -gencode arch=compute_20,code=sm_20)
The problem as described by this post
https://forums.udacity.com/questions/100015837/invalid-device-function-cudagetlasterror#cs344
is that the the device requirement is higher than what it is specified
