Abstract
MapReduce is a remarkable parallel programming model as well as a parallel processing infrastructure for large-scale data processing. Since it is now widely available on cloud environments, developing methodology or patterns for MapReduce programming is important. In particular, XML is the de facto standard for representing data, and processing semi-structured data is involved in many applications. The target computational patterns in this paper are tree accumulations. Tree accumulations are shape-preserving computations over a tree in which values are updated through flows over the tree. We develop BSP algorithms for two tree accumulations as extensions of the BSP algorithm for tree reduction by Kakehi et al. (Tech. Rep. METR 2006-64, Department of Mathematical Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 2006). We also implemented the two-superstep algorithms with a single MapReduce execution. Experimental results on a 16-node PC cluster show good speedups of a factor of 10.9---12.7.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
