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Numerical simulation of pollutant transport in a shallow-water system on the Cell heterogeneous processor

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Abstract

This paper presents an implementation, optimized for the Cell processor, of a finite volume numerical scheme for 2D shallow-water systems with pollutant transport. A description of the special architecture and programming required by the Cell processor motivates the methodology to develop optimized implementations for this platform. This process involves parallelization, data structure reorganization, explicit transfers of data and computation vectorization. Our implementation, tested using a realistic problem, achieves very good speedups with respect to the sequential execution on a standard CPU.

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Acknowledgements

This work was partially supported by the Science and Innovation Ministry of Spain (Projects TIN2010-16735, MTM2010-21135-C02-01 and MTM2009-11923), Xunta de Galicia CN2012/211 (partially supported by FEDER funds), and the FPU program of the Spanish Government (ref AP2009-4752). We thank Prof. Xavier Martorell and BSC for providing access to the MariCel system, and the PRACE prototype access program.

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Authors and Affiliations

  1. Computer Architecture Group, Electronics and Systems Dept., Univ. da Coruña, A Coruña, Spain

    Carlos H. González, Basilio B. Fraguela & Diego Andrade

  2. Applied Mathematics Area, Mathematics Dept., Univ. da Coruña, A Coruña, Spain

    José A. García

  3. Mathematical Analysis Dept., Univ. of Málaga, Málaga, Spain

    Manuel J. Castro

Authors
  1. Carlos H. González
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  2. Basilio B. Fraguela
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  3. Diego Andrade
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  4. José A. García
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  5. Manuel J. Castro
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Correspondence to Carlos H. González.

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González, C.H., Fraguela, B.B., Andrade, D. et al. Numerical simulation of pollutant transport in a shallow-water system on the Cell heterogeneous processor. J Supercomput 65, 1089–1103 (2013). https://doi.org/10.1007/s11227-012-0862-y

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