Results 111 to 120 of about 42,875 (250)

A Hybrid MPI/OpenMP Parallelization of $K$ -Means Algorithms Accelerated Using the Triangle Inequality

open access: yesIEEE Access, 2019
The standard formulation of the $K$ -means clustering (Lloyd’s method) performs many unnecessary distance calculations. In this paper, we focus on four approaches that use the triangle inequality to avoid unnecessary distance calculations.
W. Kwedlo, Pawel J. Czochanski
semanticscholar   +1 more source

Multilevel Parallelization of AutoDock 4.2

open access: yesJournal of Cheminformatics, 2011
Background Virtual (computational) screening is an increasingly important tool for drug discovery. AutoDock is a popular open-source application for performing molecular docking, the prediction of ligand-receptor interactions.
Norgan Andrew P   +4 more
doaj   +1 more source

Performance Evaluation of a Hybrid Programming Model for RSDFT on T2K Open Supercomputer

open access: yesJournal of Algorithms & Computational Technology, 2011
Non-uniform memory access (NUMA) systems, where each processor has its own memory, have been popular platform in high-end computing. While some early studies had reported that a flat-MPI programming model outperformed an OpenMP/MPI hybrid programming ...
Miwako Tsuji, Mitsuhisa Sato
doaj   +1 more source

Implementing OpenMP 4.0 for the NVIDIA PTX architecture in GCC compiler

open access: yesТруды Института системного программирования РАН, 2018
The paper describes the approach used in implementing OpenMP offloading to NVIDIA accelerators in GCC. Offloading refers to a new capability in OpenMP 4.0 specification update that allows the programmer to specify regions of code that should be executed ...
A. V. Monakov, V. A. Ivanishin
doaj   +1 more source

The Parallelization and Optimization of the N-Body Problem using OpenMP and OpenMPI

open access: yes, 2016
The focus of this research is exploring the efficient ways we can implement the NBody problem. The N-Body problem, in the field of physics, is a problem in which predicts or simulates the movements of planets and how they interact with each other ...
Carugati, Nicholas J.
core  

Practical parallelization of scientific applications with OpenMP, OpenACC and MPI

open access: yesJ. Parallel Distributed Comput., 2021
Marco Aldinucci   +7 more
semanticscholar   +1 more source

Temporal-Logic-Based Testing Tool for Programs Using the Message Passing Interface (MPI) and Open Multi-Processing (OpenMP) Programming Models

open access: yesIEEE Access
The recent surge in high-performance computing (HPC) demands, particularly with the advent of Exascale supercomputers, has highlighted the need for robust parallel systems.
Salwa Saad   +4 more
doaj   +1 more source

Nonlinear Wave Simulation on the Xeon Phi Knights Landing Processor

open access: yesEPJ Web of Conferences, 2018
We consider an interesting from computational point of view standing wave simulation by solving coupled 2D perturbed Sine-Gordon equations. We make an OpenMP realization which explores both thread and SIMD levels of parallelism.
Hristov Ivan   +2 more
doaj   +1 more source

Defect Detection and Correction in OpenMP: A Static Analysis and Machine Learning-Based Solution

open access: yesIEEE Access
Concurrency defects such as race conditions, deadlocks, and improper synchronization remain a critical challenge in developing reliable OpenMP-based parallel applications.
Norah A. Al-Johany   +4 more
doaj   +1 more source

Estimating the Potential Speedup of Computer Vision Applications on Embedded Multiprocessors

open access: yes, 2015
Computer vision applications constitute one of the key drivers for embedded multicore architectures. Although the number of available cores is increasing in new architectures, designing an application to maximize the utilization of the platform is still ...
Cleyet-Merle, Sébastien   +3 more
core   +1 more source

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