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Hi all,

I get the following error when i run the function gpu::gemm

OpenCV Error: Gpu API call (CUBLAS_STATUS_NOT_INITIALIZED [Code = 1]) in gemm, file /home/pramod/robot/OpenCV-2.4.0/modules/gpu/src/arithm.cpp, line 133 terminate called after throwing an instance of 'cv::Exception' what(): /home/pramod/robot/OpenCV-2.4.0/modules/gpu/src/arithm.cpp:133: error: (-217) CUBLAS_STATUS_NOT_INITIALIZED [Code = 1] in function gemm

It doesn't produce the error the first time i run gemm function. But when i run it in a loop ( same set of matrices repeated) it gives the above error at some point. I am really clueless why it doesn't produce this error the first time!!

By the way, I have opencv version 2.4.2, cuda tool kit version 4.1. I have enabled CUBLAS while compiling opencv (this i am sure about because gemm function runs first few times giving right results).

Sometimes i also get the following error after many iterations : OpenCV Error: Gpu API call (out of memory) in mallocPitch, file /home/pramod/robot/OpenCV-2.4.0/modules/core/src/gpumat.cpp, line 1263 terminate called after throwing an instance of 'cv::Exception' what(): /home/pramod/robot/OpenCV-2.4.0/modules/core/src/gpumat.cpp:1263: error: (-217) out of memory in function mallocPitch

I am very sure there is no memory leak in my code. I am using a static universal variable that is reused every time.

Thanks a lot in advance for your replies, Regards, Pramod