Why do I recieve a "serialization error" when saving my Sim Manager Session?

I have a script which runs a series of simulations in parallel using the 'parsim' function. This script brings up the Simulation Manager and runs all of the Simulink models in the background, producing 3+ gigabytes of Simulation Output files.

When I try to save the output files as part of the Simulation Manager session, in the standard .mldatx file, I get an error:

"Error During Serialization"

and the resulting .mldatx files are not able to be opened.

Answer 1

[MathWorks Support Team]

You are likely seeing this as a result of the Simulation Manager saving the entire output at once. To work around this error message and other memory issues (including slow simulations), I recommend that you try to implement "LoggingToFile":

Can I save the simout while running parsim after each worker completes its simulation? - MATLAB Answers - MATLAB Central (mathworks.com)

wherein the Parsim outputs are saved to a file after each run as opposed to accumulating. In this way, we avoid storing excess data in-memory while the Simulation Manager is running, and we do not perform any large 'save' operations after the simulations have concluded.