How to generate code from a trained LSTM network using MATLAB/Simulink?

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MathWorks Support Team ，2020-9-9

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编辑： MathWorks Support Team ，2021-9-30

Is code generation from a trained LSTM network supported, and if so, how? There appear to be different approaches to generate code from a trained LSTM network while working without/with Simulink.

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Answer 1

MathWorks Support Team 2021-9-30

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编辑：MathWorks Support Team 2021-9-30

1. Generate code from a trained LSTM network using MATLAB

In order to generate code from a trained LSTM network using MATLAB, there are different approaches:

(a) Generate C/C++ code using MATLAB Coder:

From MATLAB R2020a onwards, you can generate code for ARM Cortex-A CPUs. Refer to the blog post below on how to get started with deep learning models on ARM Cortex-A with MATLAB:

https://community.arm.com/developer/tools-software/tools/b/tools-software-ides-blog/posts/getting-started-with-deep-learning-models-on-arm-cortex-a-with-matlab

Another example is here: https://www.mathworks.com/help/coder/ug/code-generation-for-lstm-network-on-raspberry-pi.html

From MATLAB R2020b onwards, you can generate C++ code for an LSTM network, a stateful LSTM network, or a bidirectional LSTM network that uses the Intel® MKL-DNN library.

(b) Generate CUDA code using GPU Coder:

From R2019b onwards, you can generate code for NVIDIA GPUs. See the following documentation link for more information:

https://www.mathworks.com/help/deeplearning/ref/nnet.cnn.layer.lstmlayer.html#mw_a7799934-4908-476b-809d-1f063ef6a7fc

2. Generate code from a trained LSTM network using Simulink

From R2020b onwards, using MATLAB Coder or GPU Coder, you can use coder.loadDeepLearningNetwork and other associated functions to run inference in a MATLAB Function block. This will support accelerated simulation and code generation for both CPU or GPU targets. The following link illustrates the workflow:

https://www.mathworks.com/help/gpucoder/ug/deep-learning-in-simulink-by-using-gpu-coder.html

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Answer 2

NGR MNFD 2021-7-2

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ok1.m

Hello . I hope you have a good day. I sent the article to your service. I implemented the coding part in the MATLAB software, but to implement my network, two lines of setlayers, training MATLAB 2014 give me an error. What other function do you think I should replace? Do you think the codes I wrote are correct?( I used gait-in-neurodegenerative-disease-database in physionet website.) Thanks a lot

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Answer 3

NGR MNFD 2021-7-4

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hello dear .No, a trained lstm network is not supported and it is just lstm coding on data without simulink. Did I understand your question correctly?Thank you for your help. But boldly, I want to run this code inside MATLAB 2014. What command or function should I add to it? Because my laptop model is low and hangs by installing a higher version.No, a trained lstm network is not supported and it is just lstm coding on data without simulink. Did I understand your question correctly?thanks