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Why is there no 'ExecutionEnvironment' parameter for trainingOptions function?

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Rongbing Mu
Rongbing Mu on 24 Mar 2017
Commented: Sagar Zade on 27 Oct 2020
I am using a macbook pro with no nvida gpu, by default trainNetwork should use cpu instead of gpu. But I got this error.
There is a problem with the CUDA 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.isAnyDeviceSelected
Error in parallel.gpu.GPUDevice.current (line 33)
if parallel.internal.gpu.isAnyDeviceSelected
Error in gpuDevice (line 23)
dev = parallel.gpu.GPUDevice.current();
Caused by:
The CUDA driver could not be loaded. The library name used was '/usr/local/cuda/lib/libcuda.dylib'. The error
was:
dlopen(/usr/local/cuda/lib/libcuda.dylib, 10): image not found"
Then I tried to follow the documentation to use cpu https://www.mathworks.com/help/nnet/ref/trainingoptions.html , my matlab 2016a says trainingOptions doesn't have 'ExecutionEnvironment' parameter.
This is my code
opts = trainingOptions('sgdm',...
'ExecutionEnvironment','cpu',...
'LearnRateSchedule','piecewise',...
'LearnRateDropFactor',0.2,...
'LearnRateDropPeriod',5,...
'MaxEpochs',20,...
'MiniBatchSize',300);
Error using nnet.cnn.TrainingOptionsSGDM.parseInputArguments (line 115)
'ExecutionEnvironment' is not a recognized parameter. For a list of valid name-value pair arguments, see the
documentation for this function.
Error in trainingOptions (line 97)
args = nnet.cnn.TrainingOptionsSGDM.parseInputArguments(varargin{:});

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Accepted Answer

MSRIC
MSRIC on 24 Mar 2017
I got the same error. I think depend on the Matlab version, I am using matlab2016a. Can someone help us?

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More Answers (1)

Joss Knight
Joss Knight on 24 Mar 2017
R2016a doesn't have an 'ExecutionEnvironment' parameter and does not have CPU support, which was introduced in R2016b.

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Walter Roberson
Walter Roberson on 12 Feb 2020
Soong Yuan See, could you confirm that you have Deep Learning Toolbox installed?
Soong Yuan See
Soong Yuan See on 19 Feb 2020
I am using the 2019b version and it show me invalid solver name, yes I have the Deep Learning Toolbox installed and able to train using single CPU but not GPU please help me.
Sagar Zade
Sagar Zade on 27 Oct 2020
Soong Yuan See, can you paste a Minimal Working Example? Also does MATLAB recognize a GPU for you?

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