Simulink DESKTOP REAL-TIME does not work

Version: MATLAB 2024b (I just install all package)

OS: Window 11

I just installed latest version of MATLAB 2024b, and run the simulink example below,

openExample('sldrt/SldrtCreateARealTimeApplicationExample')

After I click 'Run in Real Time', the Simulink was stuck at 0.000s to 0.015s ( only 3step for 1 min). And it finally stops and shows the error:

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Warning: The 'Real-Time Synchronization' block has timed out while trying to synchronize to real-time kernel.

Warning: The 'Real-Time Synchronization' block has timed out while trying to synchronize to real-time kernel.

Warning: The 'Real-Time Synchronization' block has timed out while trying to synchronize to real-time kernel.

Warning: The 'Real-Time Synchronization' block has timed out while trying to synchronize to real-time kernel.

Error:An error occurred during simulation and the simulation was terminated

Caused by:

Synchronization to real-time kernel has failed.

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Is there any incompatibility between MATLAB and Window 11 now? Any kernel issue?

I have used the Simulink DESKTOP REAL-TIME for long time, and it worked well at least a year ago.

Answer 1

[Seokhwan]

I resolved this issue by enabling Hyper-V in Window 11 and MATLAB R2024a.

[Rishav]

Thank you Seokhwan for the confirmation.

For anyone else, who is facing the same issue, the issue is related to the fact that Hyper-V is enabled.

In order to check this, execute the following command from the MATLAB command window:

>> !systeminfo

If Hyper-V is enabled, the following will be displayed at the bottom line as the output of the above command:

Hyper-V Requirements: A hypervisor has been detected. Features required for Hyper-V will not be displayed.

Please refer to the following MATLAB Answers posts to see similar issues when Simulink real-time synchronization times out when Hyper-V is enabled:

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

Also, if you are facing any issues with disabling the Hyper-V feature for Simulink Desktop real-time, please refer to the MATLAB Answer post below:

https://www.mathworks.com/matlabcentral/answers/1630650-how-do-i-troubleshoot-issues-with-disabling-the-windows-hyper-v-feature-for-simulink-desktop-real-ti

[tianyuan wang]

Hi Rishav

I used the Real-Time Synchronization and Simulation Pace modules separately to achieve real-time simulation. The selected model was the same, and the simulation time was 100 seconds. I evaluated the runtime using the Simulink Profiler. I found that Real-Time Synchronization increases the simulation time, while Simulation Pace does not have this negative effect. Why this happens?

Real-Time Synchronization:

Simulation Pace: