How to restart a function if it takes too long to run?

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Diogo Carvalho 2020-10-24

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https://ww2.mathworks.cn/matlabcentral/answers/625148-how-to-restart-a-function-if-it-takes-too-long-to-run

回答： Walter Roberson 2020-10-25

Hello! I created a time stepping function to solve differential dynamic equations. Within this function I have a while loop that aims to refine the solution for each time step.

I've noticed that for very small timesteps, the function stops progressing and gets stuck. I'd like to make it so that if this happens, then the function gets reset with a new (larger) timestep. All of this would occur automatically and I was thinking about it being based on runtime.

Thank you!

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Answer 1

Walter Roberson 2020-10-25

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https://ww2.mathworks.cn/matlabcentral/answers/625148-how-to-restart-a-function-if-it-takes-too-long-to-run#answer_523663

See tic and toc, and see clock and etime

You will need to put these checks inside the code that is to be limited. There is no easy way to limit the time for a function without its active cooperation.