RT info:eu-repo/semantics/article
T1 UVaFTLE: Lagrangian finite time Lyapunov exponent extraction for fluid dynamic applications
A1 Carratalá-Sáez, Rocío
A1 Torres de la Sierra, Yuri
A1 Sierra Pallarés, José Benito
A1 López Huguet, Sergio
A1 Llanos Ferraris, Diego Rafael
K1 Informática
K1 Finite time Lyapunov exponent, Lagrangian coherent structures, OpenMP, GPU, Multithreading, Multi-GPU
K1 1203 Ciencia de Los Ordenadores
K1 3304 Tecnología de Los Ordenadores
AB The determination of Lagrangian Coherent Structures (LCS) is becoming very important in several disciplines, including cardiovascular engineering, aerodynamics, 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 contribute to open science, our code is publicly available through GitHub. Moreover, we also provide Docker containers to ease its usage.
PB Springer Nature
SN 0920-8542
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/83862
UL https://uvadoc.uva.es/handle/10324/83862
LA eng
NO UVaFTLE: Lagrangian finite time Lyapunov exponent extraction for fluid dynamic applications, Carratalá-Sáez, R., Torres, Y., Sierra-Pallares, J. et al.. Journal of Supercomputing 79, 9635–9665 (2023).
NO Producción Científica
DS UVaDOC
RD 29-mar-2026