Build only once when running SIL simulation

Good Morning,

I was trying to verify coverage and numerical equivalence of a model by running SIL simulation and comparing the results with normal simulation. Unfortunately the script I'm using is quite slow, cause apparently for every test that I run it rebuilds the code.

Is there any way to run SIL simulations and to specify that it shall use the generate code already in the folder instead of regenerating it everytime?

To run the SIL simulation I'm using the following command:

    out = sim(mdlFileName, ...
        'SimulationMode', 'Software-in-the-Loop (SIL)', ...
        'SystemTargetFile', 'ert.tlc', ...
        'Toolchain', 'MinGW64 | gmake (64-bit Windows)', ...
        'PortableWordSizes', 'off', ...      
        'ProdEqTarget', 'off', ...    
        'CovEnable', 'on', ...   
        'CovScope', 'EntireSystem', ...
        'CovSaveName', 'off', ...
        'RecordCoverage', 'on', ...
        'LoadExternalInput', 'on', ...                                  
        'ExternalInput', 'test', ...
        'StopTime', 'stopTime', ...
        'SignalLogging', 'on', ...
        'SignalLoggingName', 'logsOut', ...
        'CovMetricStructuralLevel', 'MCDC', ...
        'GenerateReport', 'off', ...        
        'CovSaveCumulativeToWorkspaceVar', 'on', ...        
        'CovShowResultsExplorer', 'off', ...                     
        'CovHtmlReporting', 'off', ...         
        'CovSaveSingleToWorkspaceVar', 'on', ...
        'CovCumulativeVarName', 'covCumulativeData', ...                
        'CovExternalEMLEnable', 'on', ...
        'CovSFcnEnable', 'on', ...
        'CovHighlightResults', 'off', ...
        'CovSaveOutputData', 'off'); 

Thanks,

Davide

[Shishir Dwivedi]

Hello Davide,

There are few ways by which you can speed up the SIL Simulation.

• If you are using model references in your main model, then you can set Model reference in SIL rebuild option set to Never (setting the parameter, UpdateModelReferenceTargets).
• You could also enable Fast Restart Mode (set_param(model,'FastRestart','on')). More details here. You could also vary your test vectors (parameter sets and input data) in this mode as well.

Best Regards,

Shishir.

[Davide Frey]

Hallo Shishir,

I tried what you suggested, but I get the following error:

'The following parameters are not supported by the sim command when Fast Restart is enabled: 'SimulationMode''

It looks like it is not possible to set Fast Restart when simulating the model programmatically in SIL mode (or at least I couldn't find a way to do it yet).

Best,

Davide

Answer 1

[Pat Canny]

I recommend contacting MathWorks Technical Support. This question requires more information.