how to speed up Matlab

Currently we are using matlab/simulink to develop RFSoC using the ZCU111 board.

We also have a nice computer with 12 physical cores. But when I run the build model as shown in the photo below, I need several hours or days to compile (build model).

So, we searched the internet on how to increase matlab compiling speed. Then we found that Matlab used ONLY single core (https://www.mathworks.com/matlabcentral/answers/333779-why-isn-t-matlab-using-the-full-cpu).

Q1. How can we use multi-core for matlab to compile?

Q2. We have a nice computer (12 cores) with several accounts to use matlab. Unfortunately, we can't run/compile matlab simultaneously on different user's accounts. When I ran matlab on 2 different user accounts then they just stopped working at "Synthesis design" level. Of course, when I ran only one matlab, there was no error message. So can we use multi-matlab with multi-user?

[Walter Roberson]

In some cases https://www.mathworks.com/help/simulink/gui/enableparallelmodelreferencebuilds.html might help.