T. Oberhuber, T. Dytrych, K. Launey, D. Langr, J. Draayer
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Transformation of a Nucleon-Nucleon potential operator into its SU(3) tensor form using GPUs
Starting from the matrix elements of a nucleon-nucleon potential operator provided in a basis of spherical harmonic oscillator functions, we present an algorithm for expressing a given potential operator in terms of irreducible tensors of the SU(3) and SU(2) groups. Further, we introduce a GPU-based implementation of the latter and investigate its performance compared with a CPU-based version of the same. We find that the CUDA implementation delivers speedups of 2.27x – 5.93x.
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