A LINUX PC CLUSTER FOR LATTICE QCD WITH EXACT CHIRAL SYMMETRY

Ting-Wai Chiu (), Tung-Han Hsieh, Chao-Hsi Huang and Tsung-Ren Huang
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Ting-Wai Chiu: Department of Physics, National Taiwan University, Taipei, Taiwan 106, R.O.C
Tung-Han Hsieh: Department of Physics, National Taiwan University, Taipei, Taiwan 106, R.O.C
Chao-Hsi Huang: Department of Physics, National Taiwan University, Taipei, Taiwan 106, R.O.C
Tsung-Ren Huang: Department of Physics, National Taiwan University, Taipei, Taiwan 106, R.O.C

International Journal of Modern Physics C (IJMPC), 2003, vol. 14, issue 06, 723-746

Abstract: A computational system for lattice QCD with overlap Dirac quarks is described. The platform is a home-made Linux PC cluster, built with off-the-shelf components. At present the system constitutes of 64 nodes, with each node consisting of one Pentium 4 processor (1.6/2.0/2.5 GHz), one Gbyte of PC800/1066 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 our system is estimated to be 70 Gflops, and its price/performance ratio 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 propagators of overlap Dirac quarks.

Keywords: Lattice QCD; overlap Dirac quarks; Linux PC cluster; 11.15.Ha; 11.30.Rd; 12.38.Gc (search for similar items in EconPapers)
Date: 2003
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DOI: 10.1142/S0129183103004954

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