Enabling OMNeT++-based simulations on grid systems

Simulation involves using a model to produce results, rather than experimenting with a real system. Simulations are typically computationally intensive problems, and lend themselves for execution on large-scale PC clusters or grids. Use of grid infrastructure for discrete event simulation like communications network simulations, or queuing network simulations etc. is not prevalent; making grid technology easily accessible to simulator framework users can change that picture significantly. In this paper we give a detailed overview how the OMNeT++ simulation framework was ported onto a gLite-based Grid infrastructure. The porting of the simulation framework to the grid infrastructure was supported by the GASUC Team of the EGEE III. project. Later on in the paper we show an example grid service which is able to execute queuing network simulations, and assess its performance on the grid.