Main Image
Volume 281 - The 26th International Nuclear Physics Conference (INPC2016) - QCD: Partonic phenomena – Friday 16
Improving Polynomial-filtered Hybrid Monte Carlo With Hasenbusch
T. Haar,* W. Kamleh, J. Zanotti, Y. Nakamura
*corresponding author
Full text: pdf
Pre-published on: 2017 May 04
Published on: 2017 May 09
The predominant method for generating Lattice QCD configurations is Hybrid Monte Carlo (HMC). In order to speed up this generation,
a wide range of preconditioning techniques that modify the lattice action have been devised.
This work compares the performance of the well-known Hasenbusch preconditioning technique with the polynomial filtering technique on a small $16^3 \times 32$ lattice with two flavours of Wilson fermions at a pion mass $M_{\pi} \sim 400~\mathrm{MeV}$.
We explore a novel method of combining polynomial and Hasenbusch filters, revealing a speedup when compared to the standard two Hasenbusch filters. This comes with the added advantage of simplified tuning.
Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.