Using the Activity Index - Examples > Example 2: the 3 piston pump (case study)
Comparison and numerical performances
Using the run stats submodel
Run Stats submodel the behavior of the integrator during a simulation can be observed. The two figures below and show the evolution of the integration step and CPU time for both models:
Figure 54: Evolution of the integration step
Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.Activity_Index/Comparison_and_numerical_performances · retrieved 2026-07-17