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Kernel result differs between HD 5000 and HD 7000 series GPU

Question asked by boxerab on Mar 6, 2015
Latest reply on Mar 7, 2015 by boxerab

I have an image processing kernel that performs a discrete wavelet transform on a 2D image.

 

When I run the kernel on my laptop with mobile HD 5000 series GPU, the result looks correct.

When I run the same kernel on my desktop with HD 7700 series GPU, there are image artifacts

at the boundaries of certain wavelet sub bands.

 

Same kernel, different result.

 

I would like to get to the bottom of this; can anyone suggest a good way of trouble shooting this kind of issue?

 

Thanks!

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