Title
Evaluation of disconnected quark loops for hadron structure using GPUs.
Abstract
A number of stochastic methods developed for the calculation of fermion loops are investigated and compared, in particular with respect to their efficiency when implemented on Graphics Processing Units (GPUs). We assess the performance of the various methods by studying the convergence and statistical accuracy obtained for observables that require a large number of stochastic noise vectors, such as the isoscalar nucleon axial charge. The various methods are also examined for the evaluation of sigma-terms where noise reduction techniques specific to the twisted mass formulation can be utilized thus reducing the required number of stochastic noise vectors.
Year
DOI
Venue
2014
10.1016/j.cpc.2014.01.009
Computer Physics Communications
Keywords
Field
DocType
Hadron physics,Lattice QCD
Statistical physics,Noise reduction,Convergence (routing),Observable,Mathematical analysis,Nucleon,CUDA,Quark,Lattice QCD,Isoscalar,Particle physics,Physics
Journal
Volume
Issue
ISSN
185
5
0010-4655
Citations 
PageRank 
References 
1
0.37
5
Authors
8
Name
Order
Citations
PageRank
C. Alexandrou130.82
M. Constantinou210.37
Vincent Drach310.71
K. Hadjiyiannakou430.82
Karl Jansen5337.43
G. Koutsou631.15
A. Strelchenko731.49
A. Vaquero810.37