How do I change a simulink executable initial commit size?

The server we have at work is running windows server 2012. Our matlab code was compiled using MCR 8.0 32bit It's a virtual machine from a hotel with multiple Xeon E5-2690 v2. I am allocated 8 cores (no idea if they're hyper threads or actual cores) 8GB of memory, which is more than enough for our application.

Upon launching one instance of the simulation, 3 executables are run - batchSimProcess.exe, amt_init.exe and amt.exe First two are fine, no issues, but the amt.exe commits a very consistant 1,620,700K of memory. We want to run 8 of these simulations, so we end up with 8 instances fighting over 8gb of memory, each requesting 2.1GB of virtual space.

I tried adding the java.opts file into the compiler runtime root, which did nothing for the simulink executable. Peak working set for amt.exe is always < 100Mb.

I want to limit the initial commit to 500Mb. If the simulation doesn't finish by then we have much bigger issues and is in our favor to terminate the program sooner.

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BR, Chris