Performance of distributed ns-3 network simulator

Authors:
Sergei Nikolaev;Peter D. Barnes, Jr.;James M. Brase;Thomas W. Canales;David R. Jefferson;Steve Smith;Ron A. Soltz;Peter J. Scheibel
Affiliations:
Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA;Lawrence Livermore National Laboratory, Livermore, CA
Venue:
Proceedings of the 6th International ICST Conference on Simulation Tools and Techniques
Year:
2013

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Abstract

This paper presents the results of parallel simulations of mixed networks using the ns-3 simulator. The simulated networks consist of equal number of simple (leaf) nodes and router nodes, which form a small-world network. The active channels in the simulations link pairs of nodes with symmetric source and sink applications. All network traffic is restricted to a single-hop communications. The network partitioning among MPI ranks is accomplished using METIS library. The performance and scalability of the ns-3 network simulator is examined using a variety of metrics, e.g. memory footprint, packet transmission rate, and runtime statistics. Empirical relations are derived for the memory scaling. Further avenues are identified for improvement of the parallel ns-3 simulator.