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

paper

Improvement of algorithms for dynamical overlap fermions

arXiv:hep-lat/0610026

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 $N_{f} = 2$ simulation with overlap fermion on a $1 6^{3} \times 32$ lattice at lattice spacing around 0.12 fm.

7 pages, 8 figures, talk given at Lattice 2006 (Algorithms, Machines, and Networks), to appear in Proceedings Of Science, POS(LAT2006)031