Computing just what you need: Online data analysis and reduction at extreme scales

I Foster, M Ainsworth, B Allen, J Bessac… - Euro-Par 2017: Parallel …, 2017 - Springer
A growing disparity between supercomputer computation speeds and I/O rates makes it
increasingly infeasible for applications to save all results for offline analysis. Instead …

State‐of‐the‐Art Report on Optimizing Particle Advection Performance

A Yenpure, S Sane, R Binyahib… - Computer Graphics …, 2023 - Wiley Online Library
The computational work to perform particle advection‐based flow visualization techniques
varies based on many factors, including number of particles, duration, and mesh type. In …

Lagrangian tracking in stochastic fields with application to an ensemble of velocity fields in the Red Sea

S El Mohtar, I Hoteit, O Knio, L Issa, I Lakkis - Ocean Modelling, 2018 - Elsevier
Lagrangian tracking of passive tracers in a stochastic velocity field within a sequential
ensemble data assimilation framework is challenging due to the exponential growth in the …

Computing the finite time Lyapunov exponent for flows with uncertainties

G You, S Leung - Journal of Computational Physics, 2021 - Elsevier
We propose an Eulerian approach to compute the expected finite time Lyapunov exponent
(FTLE) of uncertain flow fields. The definition extends the usual FTLE for deterministic …

Moving source identification in an uncertain marine flow: Mediterranean Sea application

MAER Hammoud, I Lakkis, O Knio, I Hoteit - Ocean Engineering, 2021 - Elsevier
Identifying marine pollutant sources is essential to assess, contain and minimize their risk.
We propose a Lagrangian Particle Tracking algorithm (LPT) to study the transport of passive …

Uncertain transport in unsteady flows

T Rapp, C Dachsbacher - 2020 IEEE Visualization Conference …, 2020 - ieeexplore.ieee.org
We study uncertainty in the dynamics of time-dependent flows by identifying barriers and
enhancers to stochastic transport. This topological segmentation is closely related to the …

Spatio-Temporal Visual Analysis of Turbulent Superstructures in Unsteady Flow

B Ghaffari, D Gatti… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The large-scale motions in 3D turbulent channel flows, known as Turbulent Superstructures
(TSS), play an essential role in the dynamics of small-scale structures within the turbulent …

Steady-state Particle Advection Speed-ups from GPU and CPU Parallelism

A Yenpure, D Pugmire, H Childs - Electronic Imaging, 2025 - library.imaging.org
This study evaluates the benefit of using parallelism from GPUs or multi-core CPUs for
particle advection workloads. We perform 1000+ experiments, involving four generations of …

FlowHON: Representing Flow Fields Using Higher-Order Networks

N Chen, Z Li, J Tao - arxiv preprint arxiv:2312.02243, 2023 - arxiv.org
Flow fields are often partitioned into data blocks for massively parallel computation and
analysis based on blockwise relationships. However, most of the previous techniques only …

FTLE for Flow Ensembles by Optimal Domain Displacement

J Zimmermann, M Motejat, C Rössl… - arxiv preprint arxiv …, 2024 - arxiv.org
FTLE (Finite Time Lyapunov Exponent) computation is one of the standard approaches to
Lagrangian flow analysis. The main features of interest in FTLE fields are ridges that …