Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2002-03-12
Nucl.Phys.Proc.Suppl. 106 (2002) 193-194
Physics
High Energy Physics
High Energy Physics - Lattice
Contribution to Lattice2001 (panel discussion), 2 pages, 2 figures, eq 1 corrected
Scientific paper
10.1016/S0920-5632(01)01661-9
Cost estimates for simulations of full QCD with n_f=2 Wilson fermions by hybrid Monte Carlo are presented. The extrapolations are based on the average number of iterations of the iterative solver within the fermionic part of the HMC molecular dynamics, which is closely related to the minimal eigenvalue of M^+M The cost formula is determined as a product of the scaling functions of iterative solver and integrated autocorrelation time as function of the inverse lattice pseudoscalar mass. Timings by SESAM/TxL allow to fix the pre-factor. It is demonstrated that a 2-flavor dynamical determination of light hadron masses with a statistical precision comparable to the corresponding quenched results from CP-PACS can be an appropriate task for a 100 Tflops system.
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