Extremely slow compilation time in referenced model (Simulink)

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maiaL 2020-7-29

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评论： Eric Racicot 2023-6-20

I have a Simulink model (model1) which has a model reference to model2.

Model2 compilation time (checked with sldiagnostics) is pretty fast, takes 10s or so. However, when I compile model1, the compilation times takes more than 3 minutes, and according to sldiagnostics, the only step that's taking too long is exactly this:

Cstat28: 190.56 seconds -- Check And Compile Model Reference Normal Modes

which is the compilation of the referenced model (model2).

How's this possible? What could I do to alleviate this, as a 3-minute compilation time is a huge hindrance for my test environment.

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Mark Hiteshew 2021-11-5

I have this same issue. I have a lot of model references and it takes a while to 'update' them before starting to run the model, even if I haven't changed anything in the model references. It's rather annoying

D D 2023-6-19

I also have same problem. I have a lot of model references and it takes a while to compule them when starting to run the model, even if I haven't changed anything in the model references. Please share if any solution is identified..

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回答（1 个）

Jesús Zambrano 2020-9-8

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Try running the top-level model in Accelerator or Rapid Accelerator mode.

Here are a few tips when using the Accelerator and Rapid Accelerator mode:

Avoid blocks that do not support code generation. They run in interpreted mode and can slowdown your model.
Try switching the Compiler Optimization Level from faster build to faster run.
For maximum speed, start your simulation using the sim command when using these modes.

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D D 2023-6-19

Eric Racicot 2023-6-20

I run optimizer for a patch antenna... showing Building Model for about 15 minutes and nothing change... I look computer task manager and mathlab using less than 2% of processor. Why is so long?

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