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pro vyhledávání: '"Pickles, Stephen M"'
Autor:
Pickles, Stephen M.
The enormous computing resources that large-scale simulations in Lattice QCD require will continue to test the limits of even the largest supercomputers into the foreseeable future. The efficiency of such simulations will therefore concern practition
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.660603
Autor:
Joo, Balint, Pendleton, Brian, Kennedy, Anthony D., Irving, Alan C., Sexton, James C., Pickles, Stephen M., Booth, Stephen P., Collaboration, UKQCD
Publikováno v:
Phys.Rev. D62 (2000) 114501
We investigate instability and reversibility within Hybrid Monte Carlo simulations using a non-perturbatively improved Wilson action. We demonstrate the onset of instability as tolerance parameters and molecular dynamics step sizes are varied. We com
Externí odkaz:
http://arxiv.org/abs/hep-lat/0005023
Autor:
Joo, Balint, Irving, Alan C, Sexton, James C., Pendleton, Brian, Pickles, Stephen M, Sroczynski, Zbigniew, Collaboration, UKQCD
Publikováno v:
Phys.Rev. D59 (1999) 114501
We present details of our investigation of the Parallel Tempering algorithm. We consider the application of action matching technology to the selection of parameters. We then present a simple model of the autocorrelations for a particular parallel te
Externí odkaz:
http://arxiv.org/abs/hep-lat/9810032
Autor:
Irving, Alan C., Sexton, James C., Cahill, Eamonn, Garden, Joyce, Joo, Balint, Pickles, Stephen M., Sroczynsk, Zbigniew, Collaboration, UKQCD
Publikováno v:
Phys. Rev. D 58, 114504 (1998)
We propose a strategy for conducting lattice QCD simulations at fixed volume but variable quark mass so as to investigate the physical effects of dynamical fermions. We present details of techniques which enable this to be carried out effectively, na
Externí odkaz:
http://arxiv.org/abs/hep-lat/9807015
Publikováno v:
Nucl.Phys.Proc.Suppl. 63 (1998) 961-963
Computing quark propagators in lattice QCD is equivalent to solving large, sparse linear systems with multiple right-hand sides. Block algorithms attempt to accelerate the convergence of iterative Krylov-subspace methods by solving the multiple syste
Externí odkaz:
http://arxiv.org/abs/hep-lat/9709082
Akademický článek
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Autor:
Joo, Balint, Irving, Alan C, Sexton, James C., Pendleton, Brian, Pickles, Stephen M, Sroczynski, Zbigniew, Collaboration, UKQCD
Publikováno v:
Physical Review D. 59
We present details of our investigation of the Parallel Tempering algorithm. We consider the application of action matching technology to the selection of parameters. We then present a simple model of the autocorrelations for a particular parallel te
Autor:
Irving, Alan C, Sexton, James C, Cahill, Eamonn, Garden, Joyce, Joo, Balint, Pickles, Stephen M, Sroczynsk, Zbigniew, Collaboration, UKQCD, UKQCD Collaboration
Publikováno v:
Phys. Rev. D
We propose a strategy for conducting lattice QCD simulations at fixed volume but variable quark mass so as to investigate the physical effects of dynamical fermions. We present details of techniques which enable this to be carried out effectively, na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=core_ac_uk__::742086c645b489fc858009654d748b36
http://livrepository.liverpool.ac.uk/640/1/e114504.pdf
http://livrepository.liverpool.ac.uk/640/1/e114504.pdf
Autor:
Giovanni Aloisio, Italo Epicoco, Silvia Mocavero, A. R. Porter, Mike Ashworth, Stephen M Pickles
Publikováno v:
The International Journal of High Performance Computing Applications. 32:864-881
This work describes the introduction of a second level of parallelism based on the OpenMP shared memory paradigm to NEMO, one of the most widely used ocean models in the European climate community. Although the existing parallelisation scheme in NEMO