Co-simulation

In co-simulation the different subsystems which form a coupled problem are modeled and simulated in a distributed manner. Hence, the modeling is done on the subsystem level without having the coupled problem in mind. Furthermore, the coupled simulation is carried out by running the subsystems in a black-box manner. During the simulation the subsystems will exchange data.

Problem Partitioning - From Monolithic to Co-Simulation

The partitioning procedure identifies the process of spatial separation of the coupled problem into multiple partitioned subsystems.

Communication Patterns

Gauss-Seidel (serial)

Gauss-Seidel sequence for two subsystems

Jacobi (parallel)

Jacobi sequence for two subsystems

Problem Decomposition

The term decomposition is used for the process of defining the input/output relations for each individual subsystem.

Coupling Algorithms

Iterative

Software realization

Functional Mock-up Interface

For signals co-simulation can be performed with a standardized interface called Functional Mock-up Interface.

Agent-based model

Agent-based model is a modeling approach of complex systems. Each simulator is seen as an agent and "behaves" according to its associated simulator. The agents interact, exchange data, between each other in a network. The simulation environment Mecysco is an implementation of this approach

References