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Parallelizing drainage network algorithm using free software: Octave as a solution

Author

Listed:
  • Reinoso-Gordo, J.F.
  • Ibáñez, M.J.
  • Romero-Zaliz, R.

Abstract

Drainage network is a product, normally derived from a DEM (digital elevation model), widely used in environmental and civil engineering, and particularly in hydrology. The computation requirements increase exponentially as the size DEM increases, limiting the applications when a fast analysis is necessary. This is specially noticeably when working with multiple flow direction (MFD) drainage networks. Nowadays, some solutions have been explored, but focusing on Graphical Processing Units (GPU) technology. We propose a CPU-based approach which has the advantage that uses free software such as Octave and MPI wrap for it. Our parallelized algorithm not only improved the time computation but also allows adaptive behavior to different cluster settings.

Suggested Citation

  • Reinoso-Gordo, J.F. & Ibáñez, M.J. & Romero-Zaliz, R., 2017. "Parallelizing drainage network algorithm using free software: Octave as a solution," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 137(C), pages 424-430.
    • Handle: RePEc:eee:matcom:v:137:y:2017:i:c:p:424-430
    DOI: 10.1016/j.matcom.2016.09.004
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    References listed on IDEAS

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    1. Moncayo, M. & Reinoso, J.F. & Amat, S., 2011. "Tight numerical bounds for digital terrain modeling by interpolatory subdivision schemes," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 81(10), pages 2258-2269.
    2. Kinsey-Henderson, Anne E. & Post, David A. & Prosser, Ian P., 2005. "Modelling sources of sediment at sub-catchment scale: An example from the Burdekin catchment, North Queensland, Australia," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 69(1), pages 90-102.
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