In its simplest form, multicast communication is the process of sending data packets from a source to multiple destinations in the same logical multicast group. IP multicast allows the efficient transport of data through wide-area networks, and its potentially great value for the Grid has been highlighted recently by a number of research groups. In this paper, we focus on the use of IP multicast in Grid applications, which require high-throughput reliable multicast. These include Grid-enabled computational steering and collaborative visualization applications, and wide-area distributed computing. We describe the results of our extensive evaluation studies of state-of-the-art reliable-multicast protocols, which were performed on the UK's high-speed academic networks. Based on these studies, we examine the ability of current reliable multicast technology to meet the Grid's requirements and discuss future directions.
One contribution of 27 to a Theme ‘Scientific Grid computing’.
↵IETF Working Group on Reliable multicast Transport website, http://www.ietf.org/html.charters/rmt-charter.html.
↵INRIA—MCL website http://www.inrialpes.fr/planete/people/roca/mcl/mcl.html.
↵LEANET (London and East Anglia Network) is a BT network, providing connectivity between BT at Adastral Park, the UCL campus at Adastral Park, the UCL campus in London and Cambridge University.
↵We note that the goodput of the multicast protocols considered here is dictated by that of the slowest receiver in the group. Consequently, the shape of the goodput curves we obtain shows some sensitivity to the order in which new receivers are added to an experiment. The general trends seen here, however, do not change.
↵Pickles, S. et al. The TeraGyroid Project. In Proceedings of the 10th Global Grid Forum (GGF10) Workshop on Case Studies on Grid applications.
- © 2005 The Royal Society