Running the code on Fermi Fermi compilation

Why does a code gives different results when running on the 1) Tesla C1060 (compiled using arch sm_13), 2) Fermi (compiled using arch sm_13) and 3) Fermi (compiled using arch sm_20)

Here (a) and © give different results. (a) gives the correct results as the baseline code. I don’t know what’s wrong.

Well, you can at least take heart in the fact that you have a slight edge over the rest of us here, in that you know what the code is supposed to be doing, and even have the source files.

Well, you can at least take heart in the fact that you have a slight edge over the rest of us here, in that you know what the code is supposed to be doing, and even have the source files.