Improvement of algorithms for dynamical overlap fermions

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.

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