Portal de Periódicos da CAPES

Optimizing the data distribution layer of BOINC with BitTorrent

2008; Institute of Electrical and Electronics Engineers; Linguagem: Inglês

10.1109/ipdps.2008.4536446

1530-2075

Fernando Costa, Luis Silva, Gilles Fedak, Ian Kelley,

Distributed and Parallel Computing Systems

In this paper we show how we applied BitTorrent data distribution techniques to the BOINC middleware. Our goal was to decentralize BOINC's data model to take advantage of client network capabilities. To achieve this, we developed a prototype that adds BitTorrent functionality for task distribution and conducted small- scale tests of the environment. Additionally, we measured the impact of the BitTorrent components in both the BOINC client and server, and compared it with the original implementation. Our preliminary results indicate that the BitTorrent client had a negligible influence on the BOINC client's computation time, even in the case where it was seeding extensively. The BOINC server, on the contrary, showed an unexpectedly low bandwidth output when seeding the file, as well as spikes on CPU usage. Current results show the BitTorrent scenario allows clients to share the burden of data distribution on BOINC with almost no negative influence on compute time. This paper will discuss the tests that were performed, how they were evaluated, as well as some improvements that could be made to future tests to enhance server-side efficiency.