8029

Landau Gauge Fixing on GPUs and String Tension

Nuno Cardoso, Pedro Bicudo, Paulo J. Silva, Orlando Oliveira
CFTP, Departamento de Fisica, Instituto Superior Tecnico, Universidade Tecnica, de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
arXiv:1208.1186v1 [hep-lat] (6 Aug 2012)

@article{cardoso2012landau,

   author={"Cardoso},

   title={"{Landau Gauge Fixing on GPUs and String Tension}"},

   year={2012},

   eprint={"1208.1186"},

   archivePrefix={"arXiv"},

   primaryClass={"hep-lat"},

   SLACcitation={"%%CITATION=ARXIV:1208.1186;%%"}

}

We explore the performance of CUDA in performing Landau gauge fixing in Lattice SU(3), using the steepest descent method with Fourier acceleration. The code performance was tested in a Tesla C2070, Fermi architecture. We also present a study of the string tension at finite temperature in the confined phase. The string tension is extracted from the color averaged free energy and from the color singlet using Landau gauge fixing.
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