Publication | Symposium on Theory of Modeling and Simulation 2017

A Taxonomy of Event Time Representations

Abstract

A Taxonomy of Event Time Representations

Rhys Goldstein, Azam Khan

Symposium on Theory of Modeling and Simulation 2017

Terms such as “simulated time,” “simulation time,” “virtual time,” “logical time,” and “real time” appear throughout the modeling and simulation literature as a means of describing the timing, ordering, and/or processing of events. Unfortunately, this vocabulary can become a source of confusion due to subtle inconsistencies in how the terms are interpreted. Here we review mathematical representations of event times, identify their formal relationships, and present a taxonomy to clarify the proper meanings of the most common notions of time in a simulation context. For example, the taxonomy indicates that while both scalar logical time and virtual time feature a property called causal consistency, virtual time differs in that it is formally consistent with simulated time. We also argue that while simulated time is a form of simulation time, the two terms should not be used interchangeably. A thorough look at the various event time representations suggests new research opportunities, such as the repurposing of distributed computing techniques for debugging both parallel and sequential discrete event simulations.

Download publication

Related Resources

Publication

2023

Generative design for COVID-19 and future pathogens using stochastic multi-agent simulation

Proposing a generative design workflow that integrates a stochastic…

Publication

2023

Algorithms for Voxel-based Architectural Space Analysis

This approach provides a simple and robust way to compute…

Publication

2019

Toward a Multi-Level and Multi-Paradigm Platform for Building Occupant Simulation

In recent years, simulation has been used to investigate the mutual…

Publication

2017

Practical Aspects of the DesignDEVS Simulation Environment

DesignDEVS is a simulation development environment based on the…

Get in touch

Something pique your interest? Get in touch if you’d like to learn more about Autodesk Research, our projects, people, and potential collaboration opportunities.

Contact us