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Staggered fermions simulations on GPUs

Claudio Bonati, Guido Cossu, Massimo D’Elia, Adriano Di Giacomo
Dipartimento di Fisica, Universita di Pisa and INFN, Largo Pontecorvo 3, I-56127 Pisa, Italy
arXiv:1010.5433 [hep-lat] (26 Oct 2010)

@article{bonati2010staggered,

   title={Staggered fermions simulations on GPUs},

   author={Bonati, C. and Cossu, G. and D’Elia, M. and Di Giacomo, A.},

   journal={Arxiv preprint arXiv:1010.5433},

   year={2010}

}

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We present our implementation of the RHMC algorithm for staggered fermions on Graphics Processing Units using the NVIDIA CUDA programming language. While previous studies exclusively deal with the Dirac matrix inversion problem, our code performs the complete MD trajectory on the GPU. After pointing out the main bottlenecks and how to circumvent them, we discuss the performance of our code.
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