If I run separate instances of Simulink, will set_param affect all instances?

When I use set_param to change a parameter, is the change local to that instance of the model, or is the changed value in effect if I open another concurrent instance of the model? I run parameter studies from a Matlab script which loads the Simulink model with load_system, changes a gain with set_param, but doesn't subsequenly save the changed model. To speed up the study completion, I start 4 instances of Matlab on my 4-core machine and run a separate instance of the script in each Matlab session. I want to make sure that changes with set_param are local and would not affect the other concurrent instances of the model.

Answer 1

[Kaustubha Govind]

As long as you don't save the changes to the model, it shouldn't affect any concurrent sessions.

[K E]

Thanks Kaustubha. Once I am further along I will use the Parallel Computing toolbox for a more elegant approach, but glad to hear that I am not getting into trouble here.

Answer 2

[Sean de Wolski]

I can't say with any certainty, but I wouldn't expect it to. I highly recommend that you check it!

Open two ML sessions, run it with the exact same configuration you are planning on using, and check the parameters in both sessions after.

[K E]

Thanks Sean! Will check.