The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis

We compare the performance of the PHMC algorithm with the one of the HMC algorithm in practical simulations of lattice QCD. We show that the PHMC algorithm can lead to an acceleration of numerical simulations. It is demonstrated that the PHMC algorithm generates configurations carrying small isolate...

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Detalles Bibliográficos
Autores principales: Frezzotti, Roberto, Jansen, Karl
Lenguaje:eng
Publicado: 1998
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0550-3213(99)00322-3
http://cds.cern.ch/record/363272
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author Frezzotti, Roberto
Jansen, Karl
author_facet Frezzotti, Roberto
Jansen, Karl
author_sort Frezzotti, Roberto
collection CERN
description We compare the performance of the PHMC algorithm with the one of the HMC algorithm in practical simulations of lattice QCD. We show that the PHMC algorithm can lead to an acceleration of numerical simulations. It is demonstrated that the PHMC algorithm generates configurations carrying small isolated eigenvalues of the lattice Dirac operator and hence leads to a sampling of configuration space that is different from that of the HMC algorithm.
id cern-363272
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1998
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spelling cern-3632722023-03-14T17:01:26Zdoi:10.1016/S0550-3213(99)00322-3http://cds.cern.ch/record/363272engFrezzotti, RobertoJansen, KarlThe PHMC algorithm for simulations of dynamical fermions; 2, Performance analysisParticle Physics - LatticeWe compare the performance of the PHMC algorithm with the one of the HMC algorithm in practical simulations of lattice QCD. We show that the PHMC algorithm can lead to an acceleration of numerical simulations. It is demonstrated that the PHMC algorithm generates configurations carrying small isolated eigenvalues of the lattice Dirac operator and hence leads to a sampling of configuration space that is different from that of the HMC algorithm.We compare the performance of the PHMC algorithm with the one of the HMC algorithm in practical simulations of lattice QCD. We show that the PHMC algorithm can lead to an acceleration of numerical simulations. It is demonstrated that the PHMC algorithm generates configurations carrying small isolated eigenvalues of the lattice Dirac operator and hence leads to a sampling of configuration space that is different from that of the HMC algorithm.hep-lat/9808038CERN-TH-98-272MPI-PHT-98-66CERN-TH-98-272MPI-PHT-98-66oai:cds.cern.ch:3632721998-08-27
spellingShingle Particle Physics - Lattice
Frezzotti, Roberto
Jansen, Karl
The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis
title The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis
title_full The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis
title_fullStr The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis
title_full_unstemmed The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis
title_short The PHMC algorithm for simulations of dynamical fermions; 2, Performance analysis
title_sort phmc algorithm for simulations of dynamical fermions; 2, performance analysis
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0550-3213(99)00322-3
http://cds.cern.ch/record/363272
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