What is the Local Solvers for Model References feature?

What is the Local Solvers for Model References feature?

Answer 1

[MathWorks Support Team]

By configuring a local solver for each referenced model, it is possible to use different solvers and step sizes for each referenced model, independent of the top model.

Up to R2024b, a local solver could only be configured when the referenced model used a fixed-step solver. However, starting from R2025a, a local solver can also be used when the referenced model uses a variable-step solver.

For some systems, using a local solver can improve simulation performance by allowing you to:

- Choose a solver that is more appropriate to solve the system in the referenced model

- Use different step sizes for different components to reduce the number of redundant calculations in systems that have a wide range of dynamics among components.

Please refer to the following documentation for details.

Use Local Solvers in Referenced Models：

https://www.mathworks.com/help/simulink/ug/local-solver-basics.html