I just installed the latest version of cublas on windows and it seems the call to cublasZdotc_v2 hangs/crashes immediately with any input. It seems like it’s actually a bug in the library, because the other versions of this call for float, complex float and double all work fine. In fact, this very same code worked completely fine on Linux. It’s just the windows version of cublas in which this function crashes. I am 99% sure I am giving it valid input and I didn’t previously corrupt memory.
When I comment out the use of this one function and replace it with one I wrote, my stress test code then runs happily for hours with the correct resulting being returned and with no crashes, hangs, or any problems.
Please let me know if there is specific information that would help debug this or if you want me to insert a code snippet and run it. Or, is this a known issue? I didn’t see any announcement of this anywhere.