Improving runtime of Simulink model

Question

Thomas 2024-4-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2111746-improving-runtime-of-simulink-model

回答： Mark McBroom 2024-4-27

Hello,

I am working with a Simulink model that contains several MATLAB Function blocks and a 6-DOF block. The runtime for the model is relatively high (approximately 3-5 minutes in real time per second of simulation time) and I would like to optimize the model to improve this.

The main function that is being called includes a sub-function that creates a local structure (with nested fields) and returns it as an output to the top-level function; I believe that this may be the main driver of the slow runtime, but any other advice would be appreciated.

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Answer 1

Mark McBroom 2024-4-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2111746-improving-runtime-of-simulink-model#answer_1448966

Use Simulink Profiler to determine which part of the model is consuming the most execution time: https://www.mathworks.com/help/simulink/slref/simulinkprofiler.html?searchHighlight=simulink%20profiler&s_tid=srchtitle_support_results_1_simulink%20profiler

Adjusting solver settings can often improve performance. The Solver Profiler can help with this: https://www.mathworks.com/help/simulink/slref/solverprofiler.html

Accelerator and Rapid Accelerator modes can also help.

Thanks.

Mark.