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Cuda on OSX Mac Book Pro Retina GT 650M
Closed, InvalidPublic


After Discussing already that the blender does not see the graphic card as computing device, I did more tests. I was able to run Adobe CS6 mercury engine, which is also cuda based, without problems. Also Cuda-Z Application does recognize the graphics card and delivers results out oh their performance tests.
I have installed the latest Cuda driver: 5.0.36
see also Blender 2.6 Bug Tracker item #32534

Event Timeline

OSX does not come with precompiled CUDA Kernels, you have to install the CUDA Toolkit 4.2 first.

What does that mean? To run Cycles with CUDA in OSX I have to install the Toolkit? I thought the toolkit is necessary for developers.

The Toolkit is needed to compile the Cycles CUDA Kernels. We pre-build and bundle them for Linux and Windows, but not for Mac OS. You can download it here:

o.k. its finding now the cuda graphics card. When I set the Device to GPU compute the following error message pops up:

Compiling CUDA kernel ...
gcc: No such file or directory
CUDA kernel compilation failed, see console for details.

both in Experimental and Supported feature set.
The screen stays with a dark checker board

You need the GCC compiler as well for your operating system.

works now., but its weird if you only want to use a software, that you have to install all of this tools ;-(

Thomas Dinges (dingto) changed the task status from Unknown Status to Invalid.Oct 4 2012, 3:16 PM

Our Mac maintainer says its problematic to bundle the kernels.

Closing the report.

It was my decision to ...
1. not to give advantage to Nv/cuda vs. AMD/openCL users
2. not to deliver something i cannot test myself

Easiest solution: get cuda kernels from graficall builds and copy to the /scripts/cache
To be always on the newest cuda revision ( may vary with OSX used ): get Cuda-Toolkit + cmdline-tools from Apple and compile kernels yourself.