8330

CUTE solutions for two-point correlation functions from large cosmological datasets

David Alonso
Instituto de Fisica Teorica UAM-CSIC, Universidad Autonoma de Madrid, 28049 Cantoblanco, Spain
arXiv:1210.1833 [astro-ph.IM] (5 Oct 2012)

@article{Alonso:2012rk,

   author={"Alonso},

   title={"{CUTE solutions for two-point correlation functions from large cosmological datasets}"},

   year={"2012"},

   eprint={"1210.1833"},

   archivePrefix={"arXiv"},

   primaryClass={"astro-ph.IM"},

   SLACcitation={"%%CITATION=ARXIV:1210.1833;%%"}

}

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In the advent of new large galaxy surveys, which will produce enormous datasets with hundreds of millions of objects, new computational techniques are necessary in order to extract from them any two-point statistic, the computational time of which grows with the square of the number of objects to be correlated. Fortunately technology now provides multiple means to massively parallelize this problem. Here we present a free-source code specifically designed for this kind of calculations. Two implementations are provided: one for execution on shared-memory machines using OpenMP and one that runs on graphical processing units (GPUs) using CUDA. The code is available at http://members.ift.uam-csic.es/dmonge/CUTE.html.
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