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Exploiting Parallelization in Spatial Statistics: an Applied Survey using R

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  • Bivand, Roger

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    (Dept. of Economics, Norwegian School of Economics and Business Administration)

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    Abstract

    Computing tasks may be parallelized top-down by splitting into per-node chunks when the tasks permit this kind of division, and particularly when there is little or no need for communication between the nodes. Another approach is to parallelize bottom-up, by the substitution of multi-threaded low-level functions for single-threaded ones in otherwise unchanged user-level functions. This survey examines the timings of typical spatial data analysis tasks across a range of data sizes and hardware under different combinations of these two approaches. Conclusions are drawn concerning choices of alternatives for parallelization, and attention is drawn to factors conditioning those choices.

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    Bibliographic Info

    Paper provided by Department of Economics, Norwegian School of Economics in its series Discussion Paper Series in Economics with number 25/2010.

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    Length: 16 pages
    Date of creation: 06 Oct 2010
    Date of revision:
    Handle: RePEc:hhs:nhheco:2010_025

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    Related research

    Keywords: Statistical software; Parallelization; Optimized linear algebra subroutines; Multicore processors; Spatial statistics.;

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    1. Bivand, Roger & Müller, Werner G. & Reder, Markus, 2009. "Power calculations for global and local Moran's," Computational Statistics & Data Analysis, Elsevier, vol. 53(8), pages 2859-2872, June.
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