Simulink Code Generation Workflow for Subsystem

In my understanding, if all blocks in a Simulink subsystem support Code Generation, than it is possible to treat the whole subsystem as an atomic unit and then generate code for it.

Is this correct? If so, is it always a good idea to convert the sybsystem to atomic unit in order to increase efficiency of code generation?

Answer 1

[Mark McBroom]

Converting a subsystem to be atomic will disable some cross boundary optimizations. The benefit of making the subsystem atomic is you can then specify reusable function on the "code generation" tab of the subsystem that will result in a standalone C function, optionally in it's own file. If the atomic subsystem is used multiple times in the model, the code for the subsystem will only be generated once.

[Federico Toso]

Thank you