GPU on Mac does not work.

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B Janssen
B Janssen 2018-10-29
评论： Walter Roberson 2018-10-31
Hi, I am new to working with the GPU parallel computing capacity of Matlab, so I am a bit in uncharted waters here... I am trying to use the GPU capacity of my mac (MacBook Pro (17-inch, Mid 2009; OSX 10.11.6), which still came with a NVIDIA GeForce 9400M video card (!), for parallel computing. Installed recommended CUDA version (CUDA Driver Version: 7.5.27) and NVDIA driver (version; 346.03.15.f.16), and tried to use some Matlab examples to see if it would fire up:
if true
% A = gpuArray([1 0 1; -1 -2 0; 0 1 -1]);
end
It returned the following error message:
"There is a problem with the graphics driver or with this GPU device. Be sure that you have a supported GPU and that the latest driver is installed.
Error in parallel.internal.gpu.deviceCount Error in parallel.gpu.GPUDevice.count (line 26) c = parallel.internal.gpu.deviceCount;
Error in gpuDeviceCount (line 14) n = parallel.gpu.GPUDevice.count;
Caused by: The CUDA driver was found, but the function 'cuDriverGetVersion' returned an error. The error returned was: CUDA_ERROR_NOT_INITIALIZED"
So am I correct to understand that it looks as if the drivers are found but the GPU is not found? The GPU appears to be working fine, so what else?
Any ideas/suggestions for me how I should move on?
Thanks!
Barry
  2 个评论
John D'Errico
John D'Errico 2018-10-29
Which MATLAB release? You might check this page to start:
https://www.mathworks.com/discovery/matlab-gpu.html
B Janssen
B Janssen 2018-10-29
Hi John, I'm using R2018a. Thanks for the link; I'll check it out! Barry

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回答（1 个）

Walter Roberson
Walter Roberson 2018-10-29
R2018a requires a 9 series cuda driver, but the maximum available for osx 10.11 was an 8 series driver. You will not be able to use gpu unless you go back to an earlier release.
Note: your version of MATLAB is the last one that supports your osx version.
(I am in the same situation.)
  3 个评论
显示 1更早的评论
Walter Roberson
Walter Roberson 2018-10-29
The combination OS-X 10.11.6, MATLAB R2017b, Cuda Driver version 8.0.90, GPU Driver version 10.10.14 310.42.25f02 works on my system. (The driver information is from the CUDA system preferences.)
Walter Roberson
Walter Roberson 2018-10-31
Note: your MacBook Pro 2009 is not supported by MacOS Majove, which requires mid-2012 or newer. El Capitan is the OS-X release for your hardware; Sierra requires MacBook Pro mid 2010 or newer.
I am running R2018b on my El Capitan system; the only difficulties I have noticed are for GPU use.

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