UVaFTLE: Lagrangian finite time Lyapunov exponent extraction for fluid dynamic applications

Autor: Carratalá Sáez, Rocío, Torres de la Sierra, Yuri, Sierra Pallarés, José Benito, López Huguet, Sergio, Llanos Ferraris, Diego Rafael
Rok vydání: 2023
Předmět:
Zdroj: The Journal of Supercomputing. 79:9635-9665
ISSN: 1573-0484
0920-8542
Popis: Producción Científica
The determination of Lagrangian Coherent Structures (LCS) is becoming very important in several disciplines, including cardiovascular engineering, aerodynam- ics, and geophysical fluid dynamics. From the computational point of view, the extraction of LCS consists of two main steps: The flowmap computation and the resolution of Finite Time Lyapunov Exponents (FTLE). In this work, we focus on the design, implementation, and parallelization of the FTLE resolution. We offer an in-depth analysis of this procedure, as well as an open source C implementation (UVaFTLE) parallelized using OpenMP directives to attain a fair parallel efficiency in shared-memory environments. We have also implemented CUDA kernels that allow UVaFTLE to leverage as many NVIDIA GPU devices as desired in order to reach the best parallel efficiency. For the sake of reproducibility and in order to con- tribute to open science, our code is publicly available through GitHub. Moreover, we also provide Docker containers to ease its usage.
Ministerio de Economía, Industria y Competitividad, Consejo Asesor de Educación de Castilla y León y Programas del Fondo de Desarrollo (FEDER): Proyecto PCAS (TIN2017-88614-R) y Proyecto PROPHET-2 (VA226P20).
Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación y “European Union NextGenerationEU/PRTR” : (MCIN/ AEI/10.13039/501100011033) - (grant TED2021-130367B-I00)
Junta de Castilla y León (project VA182P20)
Red Española de Supercomputación (RES) (projects IM-2022-2-0015 and IM-2022-3-0021)
Publicación en abierto financiada por el Consorcio de Bibliotecas Universitarias de Castilla y León (BUCLE), con cargo al Programa Operativo 2014ES16RFOP009 FEDER 2014-2020 DE CASTILLA Y LEÓN, Actuación:20007-CL - Apoyo Consorcio BUCLE
Databáze: OpenAIRE
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