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Maybe a dumb question, but is the CUDA 8 "driver" the same thing as the Nvidia driver for my card? I have a GTX Titan, but cannot find the driver on their site and the only thing I see to download as far as CUDA 8 is concerned are the CUDA 8 Toolkit files.

Hi, the Cuda Toolkit Kit is for developer and include a driver but not the latest.
For me I search at http://www.nvidia.de/Download/Find.aspx?lang=de
Search with the system you want to use, Nvidia detect your card group.
The have a browser tool for IE too.

Cheers, mib

I figured that was the case with the Toolkit, but wasn't sure.

At any rate, The Nvidia.com automatic card detect thing keeps telling me java is not installed, and stops. But my java IS present, and it is definitely current.

And when I browse the list of supported drivers, Titan X does not show up. In fact NO Titan's! Now...come to think of it, Nvidia always had me update only what it refers to as the "Game Ready Driver", and if that is the driver needed, it is current.

Octane says I cannot run the latest version of itself without CUDA 8, but how do you update CUDA? In the meantime, I CAN run Octane 3.04.

I feel like I'm troubleshooting Windows 3.11!

Hi again, you cant update Cuda, the next version 9.0 is not even Beta.
I checked manual search for Titan X and I got no problems to find.
Cheers, mib

Ok...I see that Titan is under Series 10 cards. Would have been nice to know that from Nvidia.

Doing a general website search for Titan X driver comes up empty.

Your advice saved the day, mib. I have Octane 3.06.4 running now.

Thanks for your help!

Just for your information: The CUDA driver is the part of the NVIDIA driver stack to which Octane uses. On Linux and Windows it's part of the NVIDIA graphics driver, while on OSX it's a separate installation.

If you install any recent graphics driver and Linux and Windows, it will install a CUDA driver that supports CUDA 8.

The CUDA toolkit is only for development and doesn't have to be installed.

Thanks abstrax!