You can generate a Model.exe executable from your model then use -iif=file_with_initial_conditions.mat to run with different initial variables
https://openmodelica.org/doc/OpenModeli … imflag-iif
https://openmodelica.org/doc/OpenModeli … flags.html

I would do this in python or some other programming language (you can also use OpenModelica with mos files, see for example:
https://openmodelica.org/forum/default- … ter-sweep)

Basically you should generate N initialX.mat files with random values (i guess you could use python to do that) then call your model with that input.

Model.exe -iif=initial1.mat -r output1.mat

Model.exe -iif=initial2.mat -r output2.mat

...

Model.exe -iif=initialN.mat -r outputN.mat

Then just plot output*.mat on the same plot.

Another way would be to use setComponentModifierValue(className, componentName.modifierName, $Code(expression));
Write something like this in a script.mos file

loadFile("Model.mo"); getErrorString();



for i in 1:100 loop

  // set a random start value to the component you want

  // change these here to what you need

  setComponentModifierValue(ModelName, componentName.modifierName, $Code(randomExpression));

  // compile the model

  buildModel(Model);

  // run the model and generate the output into an unique mat file.

  system("./Model -r=output_file_" + String(i) + ".mat");

end for;

then just run omc script.mos where Model.mo file is.

You can also use OMPython to do this, see for example this paper:
https://www.ep.liu.se/ecp/142/103/ecp17142103.pdf

That is really helpful! Thank you so much!