OpenCV_4.2.0/opencv-4.2.0/cmake/checks/OpenCVDetectCudaArch.cu

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#include <iostream>
#include <sstream>
#include <list>
int main()
{
std::ostringstream arch;
std::list<std::string> archs;
int count = 0;
if (cudaSuccess != cudaGetDeviceCount(&count)){ return -1; }
if (count == 0) { return -1; }
for (int device = 0; device < count; ++device)
{
cudaDeviceProp prop;
if (cudaSuccess != cudaGetDeviceProperties(&prop, device)){ continue; }
arch << prop.major << "." << prop.minor;
archs.push_back(arch.str());
arch.str("");
}
archs.unique(); // Some devices might have the same arch
for (std::list<std::string>::iterator it=archs.begin(); it!=archs.end(); ++it)
std::cout << *it << " ";
return 0;
}