RapidAccelerator - rtp returns empty 'parameters' structure

Question

CalinV 2015-5-4

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/214952-rapidaccelerator-rtp-returns-empty-parameters-structure

回答： Radha Krishna Maddukuri 2015-5-5

采纳的回答： Radha Krishna Maddukuri

在 MATLAB Online 中打开

Good day,

I'm having problems getting a parameter structure when building the RapidAccelerator mode for running a Simulink model.

rtp = Simulink.BlockDiagram.buildRapidAcceleratorTarget(model,'AddTunableParamInfo', 'on')
rtp = 
    modelChecksum: [2.4392e+09 825977970 3.1169e+09 4.0394e+09]
       parameters: []

problem: 'parameters' --> empty structure. Settings: Optimization > Signal and parameters > 'Inline parameters' is checked in and the required Tunable Parameter list was added to the table from the Matlab Workspace.

Why does rtp return empty parameters structure? I need this 'rtp' so I can go on with my coding for running the model in a loop where the tunable parameter values changes with each iteration.

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Answer 1

Radha Krishna Maddukuri 2015-5-5

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/214952-rapidaccelerator-rtp-returns-empty-parameters-structure#answer_177828

在 MATLAB Online 中打开

I have tried the following commands on the demo model 'vdp':

   >> vdp
   >> rtp = Simulink.BlockDiagram.buildRapidAcceleratorTarget(bdroot,'AddTunableParamInfo', 'on')
   >> rtp.parameters

This gives the expected result. However, the Inline Parameters optimization is unchecked in this case and this can be verified from

>> get_param('vdp','InlineParams')

Now, setting this parameter to on:

   >> set_param('vdp','InlineParams','on')
   >> rtp1 = Simulink.BlockDiagram.buildRapidAcceleratorTarget(bdroot,'AddTunableParamInfo', 'on')
   >> rtp1.parameters

This results in an empty 'parameters' field in the structure. The reason being the parameters are inlined. Therefore, if you want to use these parameters in the command line, I suggest you to un-check the Inline Parameters option.