Is there a way to get the Simulink real-time parameter set (rtp) from a rapid accelerator build without rebuilding it?

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Robert 2017-8-23

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https://ww2.mathworks.cn/matlabcentral/answers/353795-is-there-a-way-to-get-the-simulink-real-time-parameter-set-rtp-from-a-rapid-accelerator-build-with

评论： Lee 2017-10-30

I am building and using a rapid accelerator target for myModel using

rtp = Simulink.BlockDiagram.buildRapidAcceleratorTarget(myModel);
newRtp = Simulink.BlockDiagram.modifyTunableParameters(rtp, 'myParam', myValue);
sim(myModel, 'SimulationMode', 'rapid', ...
    'RapidAcceleratorUpToDateCheck', 'off', ...
    'RapidAcceleratorParameterSets', new_rtp);

If I don't have an rtp object (but I know my model hasn't changed and I want to run in rapid mode without re-building the model) can I get rtp from the model somehow (without re-building)?

Something like:

Simulink.BlockDiagram.buildRapidAcceleratorTarget(myModel); % oops, should have captured the output
rtp = Simulink.BlockDiagram.getExistingRapidAcceleratorTarget(myModel); % does something like this exist?

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Answer 1

Nirja Mehta 2017-8-30

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/353795-is-there-a-way-to-get-the-simulink-real-time-parameter-set-rtp-from-a-rapid-accelerator-build-with#answer_279707

在 MATLAB Online 中打开

You can check the checksum of your model and get rtp only if checksums are different.

 % To compile the model before calling Simulink.BlockDiagram.getChecksum
 myModel([],[],[],'compile')
 [cs1,csdet1]=Simulink.BlockDiagram.getChecksum(myModel);
 % Get rtp for first time
 rtp = Simulink.BlockDiagram.buildRapidAcceleratorTarget(myModel);
 [cs2,csdet2]=Simulink.BlockDiagram.getChecksum(myModel);
 if (cs1 ~= cs2)
 % This means your model changed, time to update rtp
    rtp = Simulink.BlockDiagram.buildRapidAcceleratorTarget(myModel);
 end
 % Your code now
 newRtp = Simulink.BlockDiagram.modifyTunableParameters(rtp, 'myParam', myValue);
 sim(myModel, 'SimulationMode', 'rapid', ...
    'RapidAcceleratorUpToDateCheck', 'off', ...
    'RapidAcceleratorParameterSets', new_rtp);

Hope this helps.

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Robert 2017-10-30

Thanks, Lee, for helping to clarify my question. You are exactly right. I am looking for something along the lines of ` 'RapidAcceleratorUpToDateCheck', 'off' but for Simulink.BlockDiagram.buildRapidAcceleratorTarget. This would allow me to run the rapid accelerator target using sim and modifying the parameter in rtp without rebuilding the model.

The simplest solution is to save rtp to a *.mat file whenever I create it in case I want to load it back in to be used in a simulation later. But it seems to me that there should be a better way.

Lee 2017-10-30

Does saving and reloading the rtp object even work? I've had strange behaviors when reloading saved objects in the past so hadn't even tried it yet... In theory this is a solution, but i agree, no where near as elegant as your proposed function call. Mathworks?

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Is there a way to get the Simulink real-time parameter set (rtp) from a rapid accelerator build without rebuilding it?

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Is there a way to get the Simulink real-time parameter set (rtp) from a rapid accelerator build without rebuilding it?

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