Why my visual profiler generating timeline is taking too much time?

Accelerated Computing CUDA CUDA Programming and Performance
1

I ran my cuda program on visual studio 2013 and it worked fine, now on visual profiler i cannot check my performance stats as i cannot go ahead of generating timeline dialogue? plus i am new to cuda programming

2

Try putting cudaDeviceReset(); at the end of your program

3

its already there !!