Local bosonic versus HMC --- a CPU cost comparison
Stephan Elser, Burkhard Bunk
Abstract
We compare the CPU cost of HMC to various implementations of the Hermitean variant of Lüscher's local bosonic algorithm (LBA) for 2D massive QED with two flavours of Wilson fermions. We carefully scan a 3-dimensional parameter subspace and find flat behaviour around the optimum. The gain factor of the LBA, as compared to HMC, is slightly smaller for the Re-weighting method than for the Metropolis variants and estimated to about 3.3 for the plaquette and 1.9 for the the meson correlator.
Create a lesson
Related papers
Computability of GPDs near x=ξ in Lattice QCD
Yushan Su, Xiangdong Ji, Yizhuang Liu et al.
Numerical Investigations of Phase Transitions in Lattice Field Theories
Vamika Longia
Symplectic lattice gauge theories in the Grid framework: domain wall fermions and continuum extrapolations
Ed Bennett, Peter A. Boyle, Luigi Del Debbio et al.
The soft-gluon limit of the Landau gauge ghost-gluon vertex: results for pure Yang-Mills SU(3) theory from lattice simulations
Nuno Brito, Orlando Oliveira, Paulo J. Silva
Testing strong isospin breaking effects in QCD thermodynamics
D. A. Clarke, B. B. Brandt
A Vector-Vector-Axial Anomaly in 4D
Evan Berkowitz, Shi Chen, Aleksey Cherman