TWQCD's dynamical DWF project

Details TWQCD's dynamical DWF project TWQCD's dynamical DWF project

2009-11-26

arxiv.org/abs/0911.5029v2

PoS LAT2009:034,2009

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 4 figures, talk presented at The XXVII International Symposium on Lattice Field Theory - LAT2009, July 26-31 2009, Pe

Scientific paper

We present an overview of our project of simulation of unquenched lattice QCD with optimal domain-wall quarks, using a GPU cluster currently constituting of 16 units of Nvidia Tesla S1070 plus 64 graphic cards with Nvidia GTX285 (total 128 GPUs with 128 Teraflops peak), attaining sustained computing power of 15.36 Teraflops. The first production run in two-flavor QCD is on-going, using the Iwasaki gauge action on a set of lattices with sizes $ 16^3 \times (32,10,8,6,4) \times (16,32) $ at the lattice spacing $ a \sim 0.1$ fm, with eight sea quark masses down to $ m_\pi \simeq 200 $ MeV. We outline our simulation algorithm, and describe the present status of the production run. Preliminary results of pseudoscalar mass and decay constant are also presented.

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