问题
My OpenCV CUDA program runs fine using a single NVidia 580GTX, but when using another, it gives the following error:
OpenCV Error: Gpu API call (invalid device ordinal) in mallocPitch
I know I need TBB to assign a GPU its job, but even though I installed OpenCV with TBB support (followed the willowgarage website), it says TBB support is required (CMake key 'WITH_TBB' must be true). Any help would really be appreciated since I need this to complete my computer science Master's project.
Thanks!
回答1:
Ok its solved. turns out it was build 7232 that was the problem, since it works with the latest opencv build(7292) with no problems. Thanks all for the support
来源：https://stackoverflow.com/questions/9295350/error-opencv-with-cuda-using-tbb-for-multiple-gpus