TY - JOUR
T1 - Fast calculation of HELAS amplitudes using graphics processing unit (GPU)
AU - Hagiwara, K.
AU - Kanzaki, J.
AU - Okamura, N.
AU - Rainwater, D.
AU - Stelzer, T.
PY - 2010/4
Y1 - 2010/4
N2 - We use the graphics processing unit (GPU) for fast calculations of helicity amplitudes of physics processes. As our first attempt, we compute uū → γ (n=2 to 8) processes in pp collisions at √s = 14 TeV by transferring the MadGraph generated HELAS amplitudes (FORTRAN) into newly developed HEGET (HELAS Evaluation with GPU Enhanced Technology) codes written in CUDA, a C-platform developed by NVIDIA for general purpose computing on the GPU. Compared with the usual CPU programs, we obtain a 40-150 times better performance on the GPU.
AB - We use the graphics processing unit (GPU) for fast calculations of helicity amplitudes of physics processes. As our first attempt, we compute uū → γ (n=2 to 8) processes in pp collisions at √s = 14 TeV by transferring the MadGraph generated HELAS amplitudes (FORTRAN) into newly developed HEGET (HELAS Evaluation with GPU Enhanced Technology) codes written in CUDA, a C-platform developed by NVIDIA for general purpose computing on the GPU. Compared with the usual CPU programs, we obtain a 40-150 times better performance on the GPU.
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U2 - 10.1140/epjc/s10052-010-1276-8
DO - 10.1140/epjc/s10052-010-1276-8
M3 - Article
AN - SCOPUS:77951765319
VL - 66
SP - 477
EP - 492
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 3
ER -