Simulink® Release Notes

Performance Improvements

Release R13SP1 includes many performance improvements that were designed to particularly benefit large models (containing on the order of 100,000 blocks and/or more than a few megabytes of parameter data). Speed has been improved and memory consumption reduced for model loading, compilation, code generation, and closing. The various improvements span the Simulink, Stateflow, and Real-Time Workshop products and include:

• Increased speed and decreased memory consumption through improved incremental loading of library blocks that contain Stateflow blocks.
• Increased speed and decreased memory usage through the introduction of a redesigned Signal Specification block. Models saved with the old version of the Signal Specification block should automatically start using the new block when you load the model with this release.
• Increased speed in datatype and sample time propagation during the compile phase of certain models.
• Increased speed in the Stateflow build process for both simulation and Real-Time Workshop targets.
• Increased speed and decreased memory consumption when using N-D Lookup Table blocks that utilize large parameter data.
• Increased speed and decreased memory usage when generating code with Real-Time Workshop or the Simulink Accelerator for models with large parameter sets. This improvement involves writing out parameter references instead of the entire parameter data into the RTW file for parameters whose size exceeds 10 elements. The parameter values for such references are retrieved directly from Simulink during the code generation process.
• Decreased memory usage during various phases of code generation process in Real-Time Workshop or the Simulink Accelerator.
• Improved speed during model close through streamlining of the close process.

Other minor improvements have also been made to improve performance. Your models should experience corresponding speed and memory improvements, to the extent that these changes apply to your specific models and usage scenarios.

Function-Call Subsystem Enhancements

Major Bug Fixes

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