Details

Autor(en) / Beteiligte

• Lippert, Th
• Bali, G.
• Eicker, N.
• Giusti, L.
• Glässner, U.
• Güsken, S.
• Hoeber, H.
• Martinelli, G.
• Rapuano, F.
• Ritzenhöfer, G.
• Schilling, K.
• Spitz, A.
• Viehoff, J.

Titel

Critical dynamics of the hybrid Monte Carlo algorithm

Ist Teil von

• Nuclear physics. Section B, Proceedings supplement, 1998-04, Vol.63 (1), p.946-948

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

1998

Link zum Volltext

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• We investigate the critical dynamics of the Hybrid Monte Carlo algorithm approaching the chiral limit of standard Wilson fermions. Our observations are based on time series of lengths O(500) for a variety of observables. The lattice sizes are 16 3 × 32 and 24 3 × 40. We work at β = 5.6, and κ = 0.156, 0.157, 0.1575, 0.158, with 0.83 > m π m ϱ > 0.55 . We find surprisingly small integrated autocorrelation times for local and extended observables. The dynamical critical exponent z of the exponential autocorrelation time is compatible with 2. We estimate the total computational effort to scale between V 2 and V 2 1 4 toward the chiral limit.