Speed of custom training loop
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Hi,
I test several code using 'Train Network Using Custom Training Loop'. I found it is severely slower than the method using 'nnet.cnn.layer.Layer ' class layer and 'trainNetwork' function.
Is it ture that 'dlnetwork' class is slower than 'nnet.cnn.layer.Layer ' class? or is it because of the example is using for-loop explicitly instead of using the built-in 'trainNetwork' function?
If I am wrong, please correct me or it would be great to improve speed of algorithm.
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Raynier Suresh
am 25 Feb. 2021
Hi, Generally trainNetwork framework is faster, it is optimised to take care of many things. But it's not that the custom training loop will always be slower. You can use the minibatchqueue, gpuArray and dlArray to speed things. Typically, if it is possible to use trainNetwork prefer using this.
If you can provide more information about your workflow and the hardware you were using it will be helpful for us to investigate more on this.
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