Thread safety of Matlab engine API

Question

I have discovered through trial and error that the MATLAB engine function is not completely thread safe.

Does anyone know the rules?

Discovered through trial

Answer 1

When I first started using the engine, I didn't run across any documentation on thread safety, so I assumed that it was not thread-safe.

I use a C++ class to synchronize access to an engine instance. For more parallel processing designs, I instantiate multiple instances of the engine class.

(edit) I'm using MATLAB R14 on Solaris. I open the engine using the 'engOpen' call, and close it using 'engClose'. My platform does not crash when the Close is called by a different thread than the one that called Open.