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

Improvement of algorithms for dynamical overlap fermions

High Energy Physics - Lattice 2008-11-26 v1

Authors: JLQCD Collaboration , Hideo Matsufuru , Hidenori Fukaya , Shoji Hashimoto , Kazuyuki Kanaya , Takashi Kaneko , Kenji Ogawa , Masataka Okamoto , Tetsuya Onogi , Norikazu Yamada

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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 $16^3\times 32$ lattice at lattice spacing around 0.12 fm.

Keywords

lattice qcd monte carlo algorithms lattice gauge theory with chiral fermions

Cite

@article{arxiv.hep-lat/0610026,
  title  = {Improvement of algorithms for dynamical overlap fermions},
  author = {JLQCD Collaboration and Hideo Matsufuru and Hidenori Fukaya and Shoji Hashimoto and Kazuyuki Kanaya and Takashi Kaneko and Kenji Ogawa and Masataka Okamoto and Tetsuya Onogi and Norikazu Yamada},
  journal= {arXiv preprint arXiv:hep-lat/0610026},
  year   = {2008}
}

Comments

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

Improvement of algorithms for dynamical overlap fermions

Abstract

Keywords

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