Extremely slow compilation time in referenced model (Simulink)

108 ビュー (過去 30 日間)
maiaL 2020 年 7 月 29 日
コメント済み: Mark Hiteshew 2021 年 11 月 5 日
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.
  5 件のコメント
Mark Hiteshew
Mark Hiteshew 2021 年 11 月 5 日
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


回答 (1 件)

Jesús Zambrano
Jesús Zambrano 2020 年 9 月 8 日
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.
  3 件のコメント
Jesús Zambrano
Jesús Zambrano 2020 年 9 月 9 日
Then please check the following link regarding consideration for S-functions:



Find more on Configure and View Diagnostics in Help Center and File Exchange




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by