Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2002-08-22
Int.J.Mod.Phys.C14:723-746,2003
Physics
High Energy Physics
High Energy Physics - Lattice
24 pages, LaTeX, 2 eps figures, v2:a note and references added, the version published in Int. J. Mod. Phys. C
Scientific paper
10.1142/S0129183103004954
A computational system for lattice QCD with exact chiral symmetry is described. The platform is a home-made Linux PC cluster, built with off-the-shelf components. At present this system constitutes of 64 nodes, with each node consisting of one Pentium 4 processor (1.6/2.0/2.5 GHz), one Gbyte of PC800/PC1066 RDRAM, one 40/80/120 Gbyte hard disk, and a network card. The computationally intensive parts of our program are written in SSE2 codes. The speed of this system is estimated to be 70 Gflops, and its price/performance is better than $1.0/Mflops for 64-bit (double precision) computations in quenched QCD. We discuss how to optimize its hardware and software for computing quark propagators via the overlap Dirac operator.
Chiu Ting-Wai
Hsieh Tung-Han
Huang Chao-Hsi
Huang Tsung-Ren
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