Troubleshooting Issues with Simulink Desktop Real-Time (SLDRT) in Windows 10/11

I am trying to use Simulink Desktop Real-Time (SLDRT) in Windows 10 or Windows 11, but I experience critical issues like a Blue Screen of Death (BSOD), slow simulations, or a halting simulation stuck at T=0.

Answer 1

[MathWorks Support Team]

If you experience crashes, bluescreen, halts, or slow performance when running simple SLDRT models in Windows 10 or 11, try the troubleshooting steps below.

Use the following minimal example model to test your SLDRT installation:

https://www.mathworks.com/help/sldrt/ug/real-time-van-der-pol-simulation.html

1) Upgrade MATLAB:

Make sure to install the latest MATLAB update for your release:

https://www.mathworks.com/help/install/ug/update-mathworks-software-with-internet.html

It is generally encouraged to use the newest MATLAB release if possible, as SLDRT relies on low-level kernel drivers, and these drivers are sensitive to changes introduced by Microsoft in their operating system updates. Also note that Windows 11 is officially supported since R2021b only. See our Platform Road Map for more details regarding MATLAB support for Windows major releases:

https://www.mathworks.com/support/requirements/platform-road-map.html

After upgrading MATLAB, make sure to reinstall the SLDRT kernel using the following command:

>> sldrtkernel -setup

.

2) Reinitialize SLDRT Kernel:

Sometimes, reinitializing the kernel can resolve low-level errors with SLDRT:

>> k = RT.Kernel;
>> reinitialize(k);

.

3) Disable Hyper-V

SLDRT is not compatible with Windows Hyper-V, or any features that use Microsoft virtualization technology. Follow the steps presented in the MATLAB Answer below to disable Hyper-V:

https://www.mathworks.com/matlabcentral/answers/434279-why-is-my-simulink-desktop-real-time-simulation-very-slow-or-halts-in-windows-when-hyper-v-is-enable

4) Disable 'Core Isolation Memory integrity'

SLDRT is not compatible with the Windows "Core Isolation Memory Integrity" feature. In Windows 11, this feature is usually enabled by default. Follow the steps presented in the MATLAB Answer below to disable this feature:

https://www.mathworks.com/matlabcentral/answers/2175846-why-do-i-get-an-core-isolation-memory-integrity-error-when-starting-my-simulink-desktop-real-time

5) Contact MathWorks Support

If the issue persists, contact MathWorks Technical Support: MathWorks | Contact Us