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Advances in Astronomy
Volume 2016, Article ID 9049828, 5 pages
http://dx.doi.org/10.1155/2016/9049828
Research Article

Adjacent Zero Communication Parallel Cloud Computing Method and Its System for -Body Problem with Short-Range Interaction Domain Decomposition

School of Computer Science, South China Normal University, Guangzhou 510631, China

Received 30 January 2016; Accepted 3 March 2016

Academic Editor: Juan L. G. Guirao

Copyright © 2016 Dingju Zhu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Although parallel computing is used in the existing numerical solutions of -body problem, tons of communications between particles render the parallel efficiency extremely low. Despite the fact that domain decomposition based on short-range interaction is used, when is exceedingly large and lots of communications exist between particles in adjacent areas, the parallel efficiency remains terribly low. This paper puts forward adjacent zero communication parallel cloud computing method for -body problem with short-range interaction domain decomposition. According to this method, the adjacent subblock data are exchanged and redundantly stored without acquiring data from other subblocks in the parallel processing, so the waiting time for data transmission can be saved and hence the parallel processing efficiency can be enhanced substantially.