QCD on GPUs: cost effective supercomputing

M. A. Clark
Harvard-Smithsonian Center for Astrophysics, 60 Garden St, Cambridge, MA 02138, USA
arXiv:0912.2268 [hep-lat] (11 Dec 2009)


   title={QCD on GPUs: cost effective supercomputing},

   author={Clark, MA},

   journal={Arxiv preprint arXiv:0912.2268},



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The exponential growth of floating point power in graphics processing units (GPUs), together with their low cost, has given rise to an attractive platform upon which to deploy lattice QCD calculations. GPUs are essentially many (O(100)) core chips, that are programmed using a massively threaded environment, and so are representative of the future of high performance computing (HPC). The large ratio of raw floating point operations per second to memory bandwidth that is characteristic of GPUs necessitates that unique algorithmic design choices are made to harness their full potential. We review the progress to date in using GPUs for large scale calculations, and contrast GPUs against more traditional HPC architectures
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