Breakpoints not hitting in __global__/__device__ win 7, isual studios 2010, parallel insights 2.1

Hi all,

Here’s an example of my code

global void eample(int *array)

int tx = blockIdx.x * blockDim.x + threadIdx.x; //break point is here to verify tx’s value
int ty = blockIdx.y * blockDim.y + threadIdx.y;

if(tx < 10)
int position = tx+1; //break point is here to verify position’s value
array[position] = position+3; //break point is here to catch incase top break point fails


After stepping into the global function from the kernel call using F11 on visual studios, all the break points are missed and the control returns back to my main().

However, verifying the array values back in main shows that the global function has indeed been executed correctly.

Can anyone help me out with this? Is there a fix? I need to debug within the global function because of the math calculations involved. The calculation example in my example above is highly simplified.

I’m very new to CUDA gpu programming, please go easy on the terms and steps in the explanation. :) Thank you!

Can some one with knowledge in this area please help me out? Thanks a lot! :)

You should post in the Parallel Nsight forum.

I think F11 start a local debugging in Visual Studio which means no CUDA debugging is enabled. Try run the debugging session from the Parallel Nsight Menu -> Start Debugging and let us know if that help you.

By the way, this post should be moved to Parallel Nsight Forum.

Best regards!.