No GPU Support using OpenCv 2.4.10 + Cuda 7.5 + W10

问题

Im trying to get GPU up and running using:

• OpenCv 2.4.10
• Visual Studio 2013
• Cuda toolkit 7.5 (cuda samples tested and running)
• Windows 10 x64
• Lenovo Y50 with NVIDIA GEFORCE GTX 860M

I have compiled OpenCv using CMake with WITH_CUDA=ON, and then installed the libraries by opening OpenCv.sln and built ALLBUILD and INSTALL projects.

Set my Project configuration as:

• VC++ Directories

  • include Directories:
    • C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v7.5\include
    • C:\OpenCv\opencv\build\install\include (Contains the compiled libraries)
    • C:\OpenCv\opencv\build\include

• Linker-general-Additional libraries

  • C:\OpenCv\opencv\build\x64\vc12\lib
  • C:\OpenCv\opencv\build\install\x64\vc12\lib

• Linker-input-Additional Depencies

  • opencv_calib3d2410d.lib
  • opencv_contrib2410d.lib
  • opencv_core2410d.lib
  • opencv_features2d2410d.lib
  • opencv_flann2410d.lib
  • opencv_gpu2410d.lib
  • opencv_highgui2410d.lib
  • opencv_imgproc2410d.lib
  • opencv_legacy2410d.lib
  • opencv_ml2410d.lib
  • opencv_nonfree2410d.lib
  • opencv_objdetect2410d.lib
  • opencv_ocl2410d.lib
  • opencv_photo2410d.lib
  • opencv_stitching2410d.lib
  • opencv_superres2410d.lib
  • opencv_ts2410d.lib
  • opencv_video2410d.lib
  • opencv_videostab2410d.lib

My environment variables: Path= C:\Program Files\NVIDIA GPU Computing;Toolkit\CUDA\v7.5;C:\OpenCv\opencv\build\install\x64\vc12\bin;C:\OpenCv\opencv\build\x64\vc12\bin

Testing code:

   #include "opencv2\opencv.hpp"
   #include "opencv2\gpu\gpu.hpp"

    using namespace cv::gpu;
    using namespace std;

    int main() {
        {
        setDevice(0); 
        int gpu = getCudaEnabledDeviceCount();
        cout << gpu ;
        system("pause");
        return 0;
        }

}in

But setDevice throws

no GPU support (The library is compiled without CUDA support) in EmptyDeviceInfoFuncTable::setDevice, file c:\builds\2_4_PackSlave-win64-vc12-shared\opencv\dynamicuda\include\opencv2/dynamiccuda/dynamicuda.hpp. line 84

and if i comment setDevice(0) the gpu is still not detected, getCudaEnabledDeviceCount returns 0.

回答1:

The problem is that Opencv 2.4.10 supports CUDA 4.2 and my video card is compatible only with CUDA 6.5 and 7.5 , I solved by installing OpenCV 3.0.0

来源：https://stackoverflow.com/questions/32774673/no-gpu-support-using-opencv-2-4-10-cuda-7-5-w10