A simple method to optimize HMC performance

10 Oct 2016  ·  Bussone Andrea, Della Morte Michele, Drach Vincent, Hansen Martin, Hietanen Ari, Rantaharju Jarno, Pica Claudio ·

We present a practical strategy to optimize a set of Hybrid Monte Carlo parameters in simulations of QCD and QCD-like theories. We specialize to the case of mass-preconditioning, with multiple time-step Omelyan integrators... Starting from properties of the shadow Hamiltonian we show how the optimal setup for the integrator can be chosen once the forces and their variances are measured, assuming that those only depend on the mass-preconditioning parameter. read more

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High Energy Physics - Lattice