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Michael Gopshtein's profile - activity

2015-08-12 02:59:22 -0600 received badge  Organizer (source)
2015-08-12 02:58:54 -0600 asked a question OpenCL in 3.0 and Nvidia card

I am trying to run some of the OpenCL code examples with OpenCV 3.0, and have many problems when running on Nvidia card ("Quadro K2100M", in case it's important). Same examples run perfectly when using the embedded Intel GPU card.

  • initializeContextFromD3D11Device crashes
  • cvtColor runs for a while, but then crashes too (looks like some synchronization issue)

May it be that I need to do some special setup on the card/driver/code? Any help would be appreciated.

2015-08-10 09:49:36 -0600 asked a question DirectX interop in 3.0 (Nvidia card)

I am trying to run the d3d11_interop example, but it crashes on initializeContextFromD3D11Device. When trying to debug this function, I can see that clGetPlatformIDs returns two IDs (as expected, I have an integrated Intel GPU and Nvidia GPU card). A call to clGetDeviceIDsFromD3D11KHR throws an access violation exception for Nvidia card (Regardless whether the GPU being currently used in Intel or Nvidia). For the Intel embedded GPU the interop seems to work.

Am I missing something with Nvidia drivers? I have installed the latest Nvidia driver. Same happens in 64bit (CUDA 7.0) and on 32bit (CUDA 6.5).