Matlab & Simulink crash at 2nd model run

Hello everyone,

I am blocked on a weird issue I don't manage to solve

We are running a big model which embeds a lot of C code transformed in mex functions, with big buffers allocated on memory in the C code part (up to 20kB).

The first run of this model is perfect. But if I try to run it a second time, Simulink and Matlab crash, without explaining why. It crashes at the 3rd time if using a computer with more RAM (not sure it is relevant, just a note).

If someone could have a idea or an action to avoid this very painful behavior, I'd be very happy...

Thanks in advance

Answer 1

[Fangjun Jiang]

After first run, execute "clear mex" or "clear functions" in MATLAB Command Window to see if it makes a difference.