We present MPWide, a platform independent communication library for performing message passing between computers. Our library allows coupling of several local MPI applications through a long distance network and is specifically optimized for such communications. The implementation is deliberately kept light-weight, platform independent and the library can be installed and used without administrative privileges. The only requirements are a C++ compiler and at least one open port to a wide area network on each site. In this paper we present the library, describe the user interface, present performance tests and apply MPWide in a large scale cosmological N-body simulation on a network of two computers, one in Amsterdam and the other in Tokyo.
@article{arxiv.1008.2767,
title = {A Light-Weight Communication Library for Distributed Computing},
author = {Derek Groen and Steven Rieder and Paola Grosso and Cees de Laat and Simon Portegies Zwart},
journal= {arXiv preprint arXiv:1008.2767},
year = {2010}
}
Comments
17 pages, 10 figures, published in Computational Science & Discovery