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Fast calculation of HELAS amplitudes using graphics processing unit (GPU)
- Source :
- Eur.Phys.J.C66:477-492,2010
- Publication Year :
- 2009
-
Abstract
- We use the graphics processing unit (GPU) for fast calculations of helicity amplitudes of physics processes. As our first attempt, we compute $u\bar{u}\to n\gamma$ ($n=2$ to 8) processes in $pp$ collisions at $\sqrt{s} = 14$TeV by transferring the MadGraph generated HELAS amplitudes (FORTRAN) into newly developed HEGET ({\bf H}ELAS {\bf E}valuation with {\bf G}PU {\bf E}nhanced {\bf T}echnology) 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 40-150 times better performance on the GPU.<br />Comment: 14 pages, 8 figures
Details
- Database :
- arXiv
- Journal :
- Eur.Phys.J.C66:477-492,2010
- Publication Type :
- Report
- Accession number :
- edsarx.0908.4403
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1140/epjc/s10052-010-1276-8