Results 11 to 20 of about 31,177 (208)

Venous Vessel Size Imaging Derived From A Breath-Hold Task. [PDF]

open access: yesNMR Biomed
In this study, we propose the utilization of a spin‐ and gradient‐echo echo‐planar imaging approach, in conjunction with a numerical simulation, for the quantitative assessment of venous vessel size measurements during a breath‐hold task. ABSTRACT Vessel size imaging (VSI) to provide a measure of vessel radius in the brain has been demonstrated using ...
Zhang K   +9 more
europepmc   +2 more sources

Experiences in porting mini-applications to OpenACC and OpenMP on heterogeneous systems [PDF]

open access: yes, 2020
This article studies mini-applications—Minisweep, GenASiS, GPP, and FF—that use computational methods commonly encountered in HPC. We have ported these applications to develop OpenACC and OpenMP versions, and evaluated their performance on Titan (Cray ...
Budiardja, RD   +5 more
core   +2 more sources

Parallelization of a Numerical Algorithm for Solving the Cauchy Problem for a Nonlinear Differential Equation of Fractional Variable Order Using OpenMP Technology

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2023
The article presents a software implementation of a parallel efficient and fast computational algorithm for solving the Cauchy problem for a nonlinear differential equation of a fractional variable order.
Tverdyi, D.A.   +3 more
doaj   +1 more source

Development of a hybrid parallel algorithm (MPI + OpenMP) for solving the Poisson equation

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2018
This article presents the development of a hybrid parallel algorithm for solving the Dirichlet problem for the two-dimensional Poisson equation. MPI and OpenMP were chosen as the technology for parallelization.
Y. G. Kenzhebek   +2 more
doaj   +1 more source

PAFit: An R Package for the Non-Parametric Estimation of Preferential Attachment and Node Fitness in Temporal Complex Networks

open access: yesJournal of Statistical Software, 2020
Many real-world systems are profitably described as complex networks that grow over time. Preferential attachment and node fitness are two simple growth mechanisms that not only explain certain structural properties commonly observed in real-world ...
Thong Pham   +2 more
doaj   +1 more source

A static scheduling approach to enable safety-critical OpenMP applications [PDF]

open access: yes, 2017
Parallel computation is fundamental to satisfy the performance requirements of advanced safety-critical systems. OpenMP is a good candidate to exploit the performance opportunities of parallel platforms.
Bertogna, Marko   +5 more
core   +1 more source

Developing Efficient Discrete Simulations on Multicore and GPU Architectures [PDF]

open access: yes, 2020
In this paper we show how to efficiently implement parallel discrete simulations on multicoreandGPUarchitecturesthrougharealexampleofanapplication: acellularautomatamodel of laser dynamics.
Cagigas Muñiz, Daniel   +4 more
core   +1 more source

Large-Scale Heterogeneous Computing for 3D Deterministic Particle Transport on Tianhe-2A Supercomputer

open access: yesFrontiers in Energy Research, 2021
Scalable parallel algorithm for particle transport is one of the main application fields in high-performance computing. Discrete ordinate method (Sn) is one of the most popular deterministic numerical methods for solving particle transport equations.
Biao Li   +7 more
doaj   +1 more source

Parallel Solution and Optimization of Large-Scale Sparse Linear System in GRAPES Dynamic Framework [PDF]

open access: yesJisuanji gongcheng, 2022
The Helmholtz equation is the core of dynamic framework of Global and Regional Assimilation Prediction System(GRAPES) for numerical weather forecast.This equation can essentially be transformed into the solution of a large-scale sparse linear system, but
ZHANG Kun, JIA Jinfang, YAN Wenxin, HUANG Jianqiang, WANG Xiaoying
doaj   +1 more source

OpenACC Based GPU Parallelization of Plane Sweep Algorithm for Geometric Intersection [PDF]

open access: yes, 2019
Line segment intersection is one of the elementary operations in computational geometry. Complex problems in Geographic Information Systems (GIS) like finding map overlays or spatial joins using polygonal data require solving segment intersections. Plane
AB Khlopotine   +4 more
core   +2 more sources

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