Improving runtime of Simulink model

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.

Answer 1

[Mark McBroom]

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.