Well, I don’t expect much support as I know I will not be very helpful in proving enough information in this thread, but it is worth a (free) try! Unfortunately I cannot share the core for this problem.
Here is the situation… I’ve been working on this project for around 2 years and there are some parts in it that I have not touched in ~1 years. When I switched over to driver version 270.81 (shipping with cuda 4.0), I started getting random “unknown error” in these parts.
The are random in that : I run around ~300 times through a series of 2 kernels and the run# it will crash it not always the same, and the kernel within the 2 that are run in a given run# is also not always the same.
I should also say that these ~300 runs are independent one from another and they are not “additive”.
This is with Windows 7 64 bits, 270.81 drivers and cuda toolkit 3.2 32bits. With the same setup but driver 260.93, everything works fine. I’ve also tried the combination 270.81 and cuda 4.0 but for the same bad result. On a GTX480.
So if anyone has any insight on what might differ between these two driver versions… I’m all ears!