Is cuda Toolkit 8.0RC mandatory for GTX 1080?

Hy,

Is cuda Toolkit 8.0RC mandatory for GTX 1080?

This is what I understand when reading this point in RC8 release notes :

“Out of box performance improvements on Tesla P100, supports GeForce GTX 1080”

But could you confirm?

Thx,
Etienne

It’s strongly recommended for a variety of reasons.

But it is possible to use CUDA 7.5 on a GTX 1080 (assuming you have a proper driver installed for GTX 1080), and most things should work albeit invoking JIT compilation, because you can only specify architectures up to cc 5.x with CUDA 7.5, so it will be necessary to build your code with PTX that can be forward JIT-compiled by the GTX1080 driver to be able to run on the GTX1080. And there will probably be some gotchas like this:

https://devtalk.nvidia.com/default/topic/941354/gpu-accelerated-libraries/all-curand-samples-fail-with-gtx-1080-on-cuda-7-5/