Comparative Study of Algorithms for the Numerical Simulation of Lattice QCD

Journal Article · Fri Nov 12 00:00:00 EST 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3523188· OSTI ID:21506772

Luz, Fernando H. P.; Mendes, Tereza ^[1]

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1. IFSC, University of Sao Paulo, C.P. 369, CEP 13560-970, Sao Carlos SP (Brazil)

Large-scale numerical simulations are the prime method for a nonperturbative study of QCD from first principles. Although the lattice simulation of the pure-gauge (or quenched-QCD) case may be performed very efficiently on parallel machines, there are several additional difficulties in the simulation of the full-QCD case, i.e. when dynamical quark effects are taken into account. We discuss the main aspects of full-QCD simulations, describing the most common algorithms. We present a comparative analysis of performance for two versions of the hybrid Monte Carlo method (the so-called R and RHMC algorithms), as provided in the MILC software package. We consider two degenerate flavors of light quarks in the staggered formulation, having in mind the case of finite-temperature QCD.

• OSTI ID: 21506772
• Journal Information: AIP Conference Proceedings, Vol. 1296, Issue 1; Conference: 11. hadron physics international workshop, Maresias, Sao Paulo (Brazil), 21-26 Mar 2010; Other Information: DOI: 10.1063/1.3523188; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ALGORITHMS
COMPUTERIZED SIMULATION
D QUARKS
FLAVOR MODEL
LATTICE FIELD THEORY
MASS
MONTE CARLO METHOD
QUANTUM CHROMODYNAMICS
QUARK-QUARK INTERACTIONS
QUENCHING
U QUARKS
CALCULATION METHODS
COMPOSITE MODELS
CONSTRUCTIVE FIELD THEORY
FERMIONS
FIELD THEORIES
INTERACTIONS
MATHEMATICAL LOGIC
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
SIMULATION