QCD simulations with staggered fermions on GPUs
High Energy Physics - Lattice
2012-01-26 v3 Computational Physics
Abstract
We report on our implementation of the RHMC algorithm for the simulation of lattice QCD with two staggered flavors on Graphics Processing Units, using the NVIDIA CUDA programming language. The main feature of our code is that the GPU is not used just as an accelerator, but instead the whole Molecular Dynamics trajectory is performed on it. After pointing out the main bottlenecks and how to circumvent them, we discuss the obtained performances. We present some preliminary results regarding OpenCL and multiGPU extensions of our code and discuss future perspectives.
Keywords
Cite
@article{arxiv.1106.5673,
title = {QCD simulations with staggered fermions on GPUs},
author = {Claudio Bonati and Guido Cossu and Massimo D'Elia and Pietro Incardona},
journal= {arXiv preprint arXiv:1106.5673},
year = {2012}
}
Comments
22 pages, 14 eps figures, final version to be published in Computer Physics Communications