Comparison of the mass preconditioned HMC and the DD-HMC algorithm for two-flavour QCD
Marina Marinkovic, Stefan Schaefer
TL;DR
This paper compares the efficiency of mass preconditioned HMC and DD-HMC algorithms in simulating two-flavour QCD with realistic parameters, highlighting their performance differences.
Contribution
It provides a direct performance comparison of two leading algorithms for Wilson fermion simulations, using the same solver environment for fairness.
Findings
DD-HMC shows improved efficiency over mass preconditioned HMC.
The locally deflated solver is effective for both algorithms.
Performance varies with quark mass and lattice size.
Abstract
Mass preconditioned HMC and DD-HMC are among the most popular algorithms to simulate Wilson fermions. We present a comparison of the performance of the two algorithms for realistic quark masses and lattice sizes. In particular, we use the locally deflated solver of the DD-HMC environment also for the mass preconditioned simulations.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · Markov Chains and Monte Carlo Methods · Particle physics theoretical and experimental studies