SimGrid is a framework for developing simulators of distributed applications that executed on distributed platforms, which can in turn be used to prototype, evaluate and compare relevant platform configurations, system designs, and algorithmic approaches.

SimGrid provides ready to use models and APIs to simulate popular distributed computing platforms (commodity clusters, wide-area and local-area networks, peers over DSL connections, data centers, etc.) As a result, SimGrid has served as the foundational technology for developing simulators and obtaining experimental results for a wide range of distributed computing domains: Grid computing, P2P computing, Cloud computing, Fog computing, Volunteer computing, HPC with MPI, MapReduce.

SimGrid is accurate, scalable, and usable

• Accurate: SimGrid’s simulation models have been theoretically and experimentally evaluated and validated
• Scalable: SimGrid’s simulation models and their implementations are fast and have low memory footprint, making is possible to run SimGrid simulations quickly on a single machine
• Usable: SimGrid is free software (LGPL license) available on Linux / Mac OS X / Windows, and allows users to write simulators in C++, C, Python, or Java.