Results 41 to 50 of about 4,836 (230)

Scalable Computation of Topological Abstractions for Scalar Data

Computer Graphics Forum, EarlyView.
Abstract Topological data analysis has become an important tool for large scale scalar data analysis and visualization, efficiently extracting the inherent structure and features of interest of the data. However, with growing dataset sizes and complexity, it is increasingly becoming infeasible to compute topological abstractions of interest in serial ...
M. Will, J. Lukasczyk, J. Tierny, A. Gyulassy, G. H. Weber, H. Carr, C. Garth   +6 more
wiley   +1 more source

Rethinking Per‐Thread Computation for Machine Learning Design Exploration: A Work‐Efficient GPU Strategy for K‐Means and XGBoost

Concurrency and Computation: Practice and Experience, Volume 38, Issue 11, June 2026.
ABSTRACT This paper presents novel GPU implementation strategies that effectively exploit the available parallelism, based on the “more work per thread” approach, for three machine learning design exploration tasks: Multiple K‐means evaluation, dimensionality reduction through parallel K‐means encoding for XGBoost trees, and XGBoost tree pruning ...
Olavo Barros, Isabela Freitas, Pedro H. Pereira, Walter de B. Neto, Adrián Alcolea, María Villarroya‐Gaudó, Javier Resano, José Augusto M. Nacif, Ricardo Ferreira   +8 more
wiley   +1 more source

GPU-Accelerated PSO for High-Performance American Option Valuation

Applied Sciences
Using artificial intelligence tools to evaluate financial derivatives has become increasingly popular. PSO (particle swarm optimization) is one such tool. We present a comprehensive study of PSO for pricing American options on GPUs using OpenCL.
Leon Xing Li, Ren-Raw Chen
doaj   +1 more source

Implementation of the parallel mean shift-based image segmentation algorithm on a GPU cluster

International Journal of Digital Earth, 2019
The mean shift image segmentation algorithm is very computation-intensive. To address the need to deal with a large number of remote sensing (RS) image segmentations in real-world applications, this study has investigated the parallelization of the mean ...
Fang Huang, Yinjie Chen, Li Li, Ji Zhou, Jian Tao, Xicheng Tan, Guangsong Fan   +6 more
doaj   +1 more source

OpenCL realization of some many-body potentials [PDF]

Компьютерные исследования и моделирование, 2015
Modeling of carbon nanostructures by means of classical molecular dynamics requires a lot of computations. One of the ways to improve the performance of basic algorithms is to transform them for running on SIMD-type computing systems such as systems with
A. S. Minkin, A. A. Knizhnik, B. V. Potapkin   +2 more
doaj   +1 more source

Beyond TG‑43: A PRISMA‐based systematic review on model‐based dose‐calculation algorithms in brachytherapy

Journal of Applied Clinical Medical Physics, Volume 27, Issue 5, May 2026.
Abstract Background and purpose The AAPM TG‐43 formalism has long served as the clinical standard for brachytherapy dose calculation but assumes a homogeneous water equivalent medium, overlooking limited scattering conditions and tissue heterogeneities.
Dat Tran, Thanh‐Tai Duong, Shada Wadi‐Ramahi, David Bradley, James C. L. Chow   +4 more
wiley   +1 more source

Performance Comparison of Different OpenCL Implementations of LBM Simulation on Commodity Computer Hardware

Advances in Electrical and Computer Engineering, 2022
Parallel programming is increasingly used to improve the performance of solving numerical methods used for scientific purposes. Numerical methods in the field of fluid dynamics require the calculation of a large number of operations per second.
TEKIC, J., TEKIC, P., RACKOVIC, M.
doaj   +1 more source

Optimized Parallel Reduction for Regular and Irregular Segments on GPU

Concurrency and Computation: Practice and Experience, Volume 38, Issue 8, April 2026.
ABSTRACT Reduction is an operation that combines all the elements of a collection by applying a binary operation, such as sum, maximum, or minimum, to all the elements to obtain a single resulting value. This paper investigates implementation strategies for both segmented and non‐segmented reduction on GPUs.
Michel B. Cordeiro, Wagner M. Nunan Zola
wiley   +1 more source

Towards portable performance for explicit hydrodynamics codes [PDF]

, 2013
Significantly increasing intra-node parallelism is widely recognised as being a key prerequisite for reaching exascale levels of computational performance.
Herdman, J. A., Mallinson, Andrew C., Beckingsale, David A., Gaudin, W. P., Jarvis, Stephen A.   +4 more
core  

Parallelisation of equation-based simulation programs on heterogeneous computing systems [PDF]

PeerJ Computer Science, 2018
Numerical solutions of equation-based simulations require computationally intensive tasks such as evaluation of model equations, linear algebra operations and solution of systems of linear equations.
Dragan D. Nikolić
doaj   +2 more sources