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 Finite time Lyapunov exponent
K1 Lagrangian coherent structures
K1 OpenMP
K1 GPU
K1 Multithreading
K1 Multi-GPU
K1 12 Matemáticas
K1 1203.17 Informática
AB The determination of Lagrangian Coherent Structures (LCS) is becoming veryimportant in several disciplines, including cardiovascular engineering, aerodynam-ics, and geophysical fluid dynamics. From the computational point of view, theextraction of LCS consists of two main steps: The flowmap computation and theresolution of Finite Time Lyapunov Exponents (FTLE). In this work, we focus onthe design, implementation, and parallelization of the FTLE resolution. We offeran in-depth analysis of this procedure, as well as an open source C implementation(UVaFTLE) parallelized using OpenMP directives to attain a fair parallel efficiencyin shared-memory environments. We have also implemented CUDA kernels thatallow UVaFTLE to leverage as many NVIDIA GPU devices as desired in order toreach 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, wealso provide Docker containers to ease its usage.
PB Springer
SN 0920-8542
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/58510
UL https://uvadoc.uva.es/handle/10324/58510
LA eng
NO The Journal of Supercomputing, 2023.
NO Producción Científica
DS UVaDOC
RD 26-abr-2024