arXiv:2203.17119·v1·High Energy Physics — Lattice
Algorithms for Domain Wall Fermions
Peter A Boyle🇺🇸 · Dennis Bollweg🇺🇸 · Christopher Kelly🇺🇸 · Azusa Yamaguchi🇬🇧
Abstract
We discuss algorithms for domain wall fermions focussing on accelerating Hybrid Monte Carlo sampling of gauge configurations. Firstly a new multigrid algorithm for domain wall solvers and secondly a domain decomposed hybrid monte carlo approach applied to large subvolumes and optimised for GPU accelerated nodes. We propose a formulation of DD-RHMC that is suitable for the simulation of odd numbers of fermions.
Comments: 9 pages