Matlab slows down when the window is minimized

Hi everyone,

I'm running some heavy code and found that when I reduce the Matlab window, the code execution significantly slows down. How can I address this issue? I've already tried using the task manager to give Matlab a higher priority, but it didn't work. Thank you in advance.

[Bruno Luong]

Do you plot something in the closed window?

Do you use graphicj with opengl hardware or software?

opengl info

[Cinzia Tomaselli]

No, I do not plot anything. It is just a loop that performs a numerical integration of a system of ODEs.

[Bruno Luong]

Shooting in the dark, but on some windows OS there is a setting of "Game Mode" when it turns on, the background proocess are slow down? You might check it and turn the Game mode off if applicable.

[Cinzia Tomaselli]

Good guess, I tried, but unluckly it still does not work

[Shawn Hineline]

Hi,

I have the same issue. The program took 200 seconds to run with the Matlab window open, It took around 2000 seconds to run with the Matlab windows minimized. I noticed the CPU% in windows droped from around 16% to aroind 4% in task manager.

Thanks,

Shawn

Answer 1

[Shivam Lahoti]

Hi Cinzia Tomaselli,

As per my understanding, you want to execute an extensive script comprising various logical loops. But when you minimize the MATLAB window, a considerable drop in execution speed is observed.

I can understand that you have tried to prioritize the MATLAB execution in CPU and then could not witness a boost in execution. I would suggest the following approaches, which might work in favor of solving the problem.

Approach 1:

Try running the script in the background. You can create MATLAB scripts that can be executed in a headless mode, which means they do not require any graphical output or user interaction.

https://in.mathworks.com/matlabcentral/answers/372573-running-matlab-in-headless-mode

Please refer to this answer to get some help in understanding the approach.

Approach 2:

Create a MATLAB Executable file also known as MEX file. This quick start guide focuses on how to generate MEX code to possibly speed up your MATLAB design.

https://in.mathworks.com/content/dam/mathworks/mathworks-dot-com/campaigns/products/offer/files/matlab-coder-acceleration-quick-start-guide-r2022b.pdf

I hope you find one of the approaches helpful.

Regards,

Shivam Lahoti.