SimGrid: a generic framework for large-scale distributed experiments

We presented the SimGrid simulation framework whose goal is to provide a generic evaluation tool for large-scale distributed computing. Its main components are: two APIs for researchers who study algorithm and need to prototype simulations quickly, and two for developers who can develop applications in the comfort of the simulated world before deploying them seamlessly in the real world. SimGrid employs a modular simulation kernel that supports the addition and use of new resource models without changes in the user code. We used this feature ourselves to implement several simulation models and even to integrate the GTNetS packet-level simulator.