A CUDA Fortran GPU-parallelised hydrodynamic tool for high-resolution and long-term eco-hydraulic modelling

Autor: Marcos Sanz-Ramos, David López-Gómez, Ernest Bladé, Danial Dehghan-Souraki
Přispěvatelé: Universitat Politècnica de Catalunya. Institut en Dinàmica Fluvial i Enginyeria Hidrològica, Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. Doctorat en Enginyeria Civil
Rok vydání: 2023
Předmět:
Zdroj: Environmental Modelling & Software. 161:105628
ISSN: 1364-8152
DOI: 10.1016/j.envsoft.2023.105628
Popis: Eco-hydraulic models are wide extended tools to assess physical habitat suitability on aquatic environments. Currently, the application of these tools is limited to short river stretches and steady flow simulations. However, this limitation can be overcome with the application of a high-performance computing technique: graphics processing unit (GPU) computing. R-Iber is a GPU-based hydrodynamic code parallelised in CUDA Fortran that, with the integration of a physical habitat module, performs as an eco-hydraulic numerical tool. R-Iber was validated and applied to real cases by using an optimised instream flow incremental methodology in long river reaches and long-term simulations. R-Iber reduces the computation time considerably, reaching speed-ups of two orders of magnitude compared to traditional computing. R-Iber allows for overcoming the current limitations of the eco-hydraulic tools with the simulation of high-resolution numerical models calculated in a reasonable computation timeframe, which provides a better representation of the hydrodynamics and the physical habitat. The contract of the D.D.-S. is funded by the International Center for Numerical Methods in Engineering (VAC-2021-1).
Databáze: OpenAIRE