Multiscale Simulation and Systems Modeling Library


The SyDEVS open source C++ library provides a framework for modeling and simulating complex systems.

In a nutshell, it will help make your simulation code scale.

SyDEVS allows physics solvers, state machines, and other types of simulation models to be implemented as independent nodes and later integrated. Even nodes that use different time steps (or variable time steps) can be linked together and allowed to interact.

The framework is based on the Symmetric DEVS formalism, a set of conventions combining three modeling paradigms: discrete event simulation, dataflow programming and agent-based modeling. These foundations give SyDEVS the generality needed to support essentially any type of simulation, regardless of domain, time scale, or time advancement scheme.

In addition to supporting multiple modeling paradigms, the SyDEVS library provides comprehensive and reusable Modern C++ implementations of multidimensional arrays, Standard International (SI) units, and the multiscale representation of simulated time described in this freely available paper from Simulation.



Download the latest SyDEVS release here, or fork, clone, and build the repo.

You will need a C++ compiler that implements the C++14 standard. SyDEVS has been tested successfully with Visual Studio 2015, Visual Studio 2017, and recent versions of GCC and Clang.

SyDEVS is released under the Apache License 2.0, a permissive open source license.


Inquires about SyDEVS can be directed to Rhys Goldstein.

Queueing Network
Above: A queueing network simulated using SyDEVS