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2015-06-02 11:13:16 -0600 | answered a question | Parralel creation of cv::Mat crashes? Bug? Meanwhile I was digging a little bit further into the problem and I really think there is a bug in OpenCV. In Mat::create the following code is executed which calls getStdAllocator. This is implemented as: i.e. returning a static local variable. When getStdAllocator() is executed in parallel this may crash (in my case it simply sometimes returns NULL). I can get my example running by ensuring that the static local variable is initialized first, i.e. But it seems to be fixed here already: http://code.opencv.org/issues/4189 |
2015-05-25 08:01:35 -0600 | asked a question | Parralel creation of cv::Mat crashes? Bug? Hi there, I'm using OpenCV 3.0rc1 and Windows 7 (Visual Studio 2010) My problem is that the following code crashes randomly when using OpenMP for parallization. If I remove the OpenMP loop parallelization everything works fine. The following exception is thrown OpenCV Error: Assertion failed (u != 0) in cv::Mat::create, file src\matrix.cpp, line 412 Can anyone reproduce / confirm this behavior? |