Výsledky vyhledávání

Autor: Peter Boyle

Publikováno v: Boyle, P A 2009, ' The BAGEL assembler generation library ', Computer Physics Communications, vol. 180, no. 12, pp. 2739-2748 . https://doi.org/10.1016/j.cpc.2009.08.010

This paper presents two coupled software packages which receive widespread use in the field of numerical simulations of Quantum Chromo-Dynamics. These consist of the BAGEL library and the BAGEL fermion sparse-matrix library, BFM.The Bagel library can

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https://doi.org/10.1016/j.cpc.2009.08.010

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A fine grained parallel smooth particle mesh Ewald algorithm for biophysical simulation studies: Application to the 6-D torus QCDOC supercomputer

Autor: Yuefan Deng, Glenn J. Martyna, Bin Fang

Publikováno v: Computer Physics Communications. 177:362-377

In order to model complex heterogeneous biophysical macrostructures with non-trivial charge distributions such as globular proteins in water, it is important to evaluate the long range forces present in these systems accurately and efficiently. The S

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https://doi.org/10.1016/j.cpc.2007.01.011

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Performance of the 3D FFT on the 6D network torus QCDOC parallel supercomputer

Autor: Bin Fang, Yuefan Deng, Glenn J. Martyna

Publikováno v: Computer Physics Communications. 176:531-538

QCDOC is a massively parallel supercomputer with tens of thousands of nodes distributed on a six-dimensional torus network. The 6D structureof the network provides the needed communication resources for many communication-intensive applications. In t

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https://doi.org/10.1016/j.cpc.2006.12.006

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Electrostatic force computation for bio-molecules on supercomputers with torus networks

Autor: Yuefan Deng, Peter Rissland

Publikováno v: Parallel Computing. 33:116-123

We present an application of the Ewald algorithm for electrostatic force computation on a supercomputer with a torus network, like those on QCDOC and BlueGene/L. Typical bio-molecular systems have thousands, possibly millions of atoms interacting, wi

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https://doi.org/10.1016/j.parco.2006.11.006

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Kaon physics and CP violation calculations on QCDOC

Autor: R. Mawhinney

Publikováno v: Journal of Physics: Conference Series. 46:161-165

The violation of charge conjugation (C) and parity (P) in kaon decays, first observed in Nobel-prize winning experiments at Brookhaven National Lab in 1964, is allowed by the Standard Model of particle physics. Predicting indirect CP violation in kao

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https://doi.org/10.1088/1742-6596/46/1/023

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QCDgrid: A Grid Resource for Quantum Chromodynamics

Autor: Balint Joo, Craig McNeile, Lorna Smith, Jonathan M. Flynn, J. Perry, Andrew N. Jackson, Richard Kenway, George Beckett, Christine Davies, Christopher M. Maynard, Chris Allton, Zbyszek Sroczynski, D. Byrne, Wes Armour, Alan C. Irving, S. Downing, Arthur Trew

Publikováno v: Journal of Grid Computing. 3:113-130

Quantum Chromodynamics (QCD) is an application area that requires access to large supercomputing resources and generates large amounts of raw data. The UK's national lattice QCD collaboration UKQCD currently stores and requires access to around five

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https://doi.org/10.1007/s10723-005-9005-5

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The QCDOC Project

Publikováno v: Nuclear Physics B - Proceedings Supplements. 140:169-175

The QCDOC project has developed a supercomputer optimised for the needs of Lattice QCD simulations. It provides a very competitive price to sustained performance ratio of around $1 USD per sustained Megaflop/s in combination with outstanding scalabil

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https://doi.org/10.1016/j.nuclphysbps.2004.11.179

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QCDOC: project status and first results

Autor: Tilo Wettig, C. Kim, Robert D. Mawhinney, G. Liu, Saul D. Cohen, C. Cristian, Ludmila Levkova, Dong Chen, Michael A. Clark, Z. Dong, X. Liao, Alan Gara, Balint Joo, C. K. Jung, Azusa Yamaguchi, Peter Boyle, S Ohta, Norman H. Christ, K. Petrov

Publikováno v: Journal of Physics: Conference Series. 16:129-139

After a brief overview of quantum chromodynamics (QCD), the fundamental theory of the strong interactions, we describe the QCDOC computer, its architecture, construction, software and performance. Three 12K-node, 4 Teraflops (sustained) QCDOC compute

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https://doi.org/10.1088/1742-6596/16/1/017

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National software infrastructure for lattice gauge theory

Autor: Richard C Brower

Publikováno v: Journal of Physics: Conference Series. 16:165-168

The current status of the SciDAC software infrastructure project for lattice gauge theory is summarized. This includes the the design of a QCD application programmers interface (API) that allows existing and future codes to be run efficiently on Tera

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https://doi.org/10.1088/1742-6596/16/1/021

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Performance Models on QCDOC for Molecular Dynamics with Coulomb Potentials

Autor: X. Cai, Yuefan Deng, James W. Davenport, Eunice E. Santos, James Glimm

Publikováno v: The International Journal of High Performance Computing Applications. 18:183-195

We estimate that a novel architecture massively parallel computer, the QCDOC, can integrate molecular dynamics equations for 105 particles interacting via long-range forces (including Coulomb) for 1–10 s of simulated time using several weeks of com

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https://doi.org/10.1177/1094342004044010

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