Model Preparation

Obtaining reference results, performance optimization

Moving your model from desktop simulation to real-time simulation is an iterative process that can require extensive model reconfiguration. The real-time model preparation workflow shows how to analyze and decrease the computational cost of your model on a development machine. After completing the workflow, you can determine optimal fixed-cost solver settings for simulation on a real-time target machine.

Topics

Model Preparation Process
Follow the real-time model preparation workflow to make your Simscape™ model real-time capable.
Solvers for Real-Time Simulation
The fixed-step solver, step size, and number of iterations that you specify affect how your Simscape model simulates in real time.
Improving Speed and Accuracy
Simulating a Simscape model in real time requires a balance of speed and accuracy that you can attain by reducing computational costs, optimizing solver configurations, or increasing processing power.
Reduce Fast Dynamics
To make your Simscape model real-time capable, decrease computational cost by reducing fast dynamics that you identify using frequency-response and pole-speed analyses.

Featured Examples

Determine Step Size

Determine the maximum step size to use for fixed-step simulation by analyzing the results from a variable-step simulation of your Simscape model.

Increase Simulation Speed Using the Partitioning Solver

Improve performance by using the Simscape Partitioning solver to convert a large system of equations into several smaller systems of equations that are easier to solve.

Reduce Computation Costs

Make your Simscape model real-time capable by identifying and eliminating unnecessary, computationally costly processes such as redundant monitoring and data logging.

Reduce Numerical Stiffness

Eliminate components that cause rapid changes to reduce the computation cost of simulation and to make your Simscape model real-time capable.

Partition a Model

Partition a Simscape model for parallel processing on real-time processors.