I know that this issue has been as been asked several times but no solutions works for me.
I installed cuda following the guide on a MacBook Pro 2010 and start the deviceQuery example and only get:
[./deviceQuery] starting...
./deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
cudaGetDeviceCount FAILED CUDA Driver and Runtime version may be mismatched.
[deviceQuery] test results...
FAILED
I’ve tested on Mac os x 10.6, 10.7 (dev preview 1 & 2) with Cuda 3.0, 3.1, 3.2 rc, 3.2, 4.0 rc, nothing works
The “trick” with gfxCardStatus also doesn’t work
I have no more ideas where the error is, maybe someone can help me.
I’ve read that on linux there are /dev/nv* devices and I don’t have any of this, is this a problem or normal on a mac?
I have the same problem: OS X 10.6.3, MacBookPro3,1, CUDA 3.2 (V. 17)
According to the user guide, I did (using sudo -s):
Uninstall any previous versions of the CUDA Toolkit and GPU Computing SDK.
Do this by deleting the files from /usr/local/cuda and from /Developer/GPU Computing
I could build all examples, but:
Last login: Fri May 20 09:34:39 on ttys002
/Developer/GPU\ Computing/C/bin/darwin/release/deviceQuery ; exit;
hermann-singers-macbook-pro:~ hermannsinger$ /Developer/GPU\ Computing/C/bin/darwin/release/deviceQuery ; exit;
/Developer/GPU Computing/C/bin/darwin/release/deviceQuery Starting…
CUDA Device Query (Runtime API) version (CUDART static linking)
cudaGetDeviceCount FAILED CUDA Driver and Runtime version may be mismatched.