How to only use 2 of my 4 cores (intel i5) to train neural network?

Question

Jay Cheng 2015-7-27

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https://ww2.mathworks.cn/matlabcentral/answers/231337-how-to-only-use-2-of-my-4-cores-intel-i5-to-train-neural-network

回答： Edric Ellis 2015-7-28

I tried following codes to train NN. But instead of using 2 cores, the train() still uses 4 cores because I can see all of my 4 cores are running high in the Windows 7 task manager. How do I use only two cores to train NN? So that I can use the rest of two cores to do something else?

%%%%%%%%%%%%Code starts
N=2;
myCluster=parcluster('local'); myCluster.NumWorkers=N; parpool(myCluster,N)
net2 = train(net1,x,t,'useParallel','yes','showResources','yes');
y = net2(x,'useParallel','yes','showResources','yes');

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Answer 1

Edric Ellis 2015-7-28

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https://ww2.mathworks.cn/matlabcentral/answers/231337-how-to-only-use-2-of-my-4-cores-intel-i5-to-train-neural-network#answer_187431

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I tried the following:

N=2;
myCluster=parcluster('local'); 
myCluster.NumWorkers=N; 
parpool(myCluster,N)
[x,t] = vinyl_dataset;
net = fitnet(140,'trainscg');
net2 = train(net,x,t,'useParallel','yes','showResources','yes');