In my cuda-c++ project, I am using cuRAND library for generating random numbers and I have included below files in my header file:
// included files in header file #include <cuda.h> #include <cuda_runtime_api.h> #include <curand_kernel.h> // cuRAND lib #include "device_launch_parameters.h"
I am able to compile my project on Windows 7 and Windows 8 with no errors. But when I tried to compile it on linux with g++ (GCC) 4.4.7 (Red Hat 4.4.7-16), I am getting below error:
/usr/local/cuda-7.5/bin/../targets/x86_64-linux/include/curand_mtgp32_kernel.h:122: error: previous declaration of ‘const uint3 threadIdx’ with ‘C++’ linkage /usr/local/cuda-7.5/bin/../targets/x86_64-linux/include/device_launch_parameters.h:71: error: conflicts with new declaration with ‘C’ linkage /usr/local/cuda-7.5/bin/../targets/x86_64-linux/include/curand_mtgp32_kernel.h:121: error: previous declaration of ‘const dim3 blockDim’ with ‘C++’ linkage /usr/local/cuda-7.5/bin/../targets/x86_64-linux/include/device_launch_parameters.h:73: error: conflicts with new declaration with ‘C’ linkage make: *** [host] Error 1
I can see “threadIdx” and “blockDim” declared as “extern” in “curand_mtgp32_kernel.h” and actual definitions in “device_launch_parameters.h”.
I am not sure what this error means and how should I resolve it?