Comparing the Predictive Event Handling Algorithm LookAhead to Rollback and Early Return

Abstract

LookAhead is a lightweight algorithm that improves eventhandling in co-simulation by predicting events andadjusting the communication step size beforehand. Itoperates without requiring subsystem event handlingcapabilities. This paper compares LookAhead with otherevent handling methods, namely Rollback and Early Return,from the perspective of performance and applicability.Results from the presented example show that LookAheadperforms on par with iterative co-simulation methods and isparticularly well-suited for handling shared state events.