Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2011-11-27
Physics
High Energy Physics
High Energy Physics - Lattice
8 pages, 4 figures, presented at The XXIX International Symposium on Lattice Field Theory - Lattice 2011, July 10-16, 2011, Sq
Scientific paper
Electric polarizability is an important parameter for the internal structure of hadrons. Previous studies of polarizabilities have been done at relatively heavy pion masses, leaving the chiral region largely unexplored. In this report, we use overlap fermions which are known to be computationally demanding to properly capture the chiral dynamics. We present an implementation strategy to construct overlap on multi-GPUs. We find that our GPU code has an equivalent of \sim30 CPU cores to 1 GPU. We also present preliminary results for the polarizability of the neutral pion.
Alexandru Andrei
Lee Frank
Lujan Michael
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