Improvement of algorithms for dynamical overlap fermions
JLQCD Collaboration, Hideo Matsufuru, Hidenori Fukaya, Shoji Hashimoto, Kazuyuki Kanaya, Takashi Kaneko, Kenji Ogawa, Masataka Okamoto, Tetsuya Onogi, Norikazu Yamada
Abstract
We investigate the algorithms for dynamical overlap fermions aiming at improving the performance for large-scale simulations. We look for the best combination of Hybrid Monte Carlo options and iterative quark solvers with respect to the numerical costs. Our main target is a Nf=2 simulation with overlap fermion on a 163× 32 lattice at lattice spacing around 0.12 fm.
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