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Accelerating the hybrid Monte Carlo algorithm

delete2003-07-01
delete21
delete
OA
AI
A
A. Ali Khan *
T
T. Bakeyev
M
M. Göckeler
R
R. Horsley
D
D. Pleiter
P
P. E. L. Rakow
A
Andreas Schäfer
G
G. Schierholz
H
H. Stüben
DOI：10.1016/S0370-2693(03)00703-2delete
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Abstract

Abstract

En 中文
An algorithm for separating the high- and low-frequency molecular dynamics modes in hybrid Monte Carlo (HMC) simulations of gauge theories with dynamical fermions is presented. The separation is based on splitting the pseudo-fermion action into two parts, as was initially proposed by Hasenbusch. We propose to introduce different evolution time-scales for each part. We test our proposal in realistic simulations of two-flavor O(a) improved Wilson fermions. A speed-up of more than a factor of three compared to the standard HMC algorithm is observed in a typical run. (C) 2003 Published by Elsevier B.V.
Keywords:
IMPROVED WILSON FERMIONS
SPEEDING-UP
QCD
SIMULATIONS
MASSES
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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Physics Letters B cover
Physics Letters B
IF:
4.5
Papers:
3.2W
Citations:
7.3W

Organization

No organization information available