Special Article - Tools for Experiment and Theory
Thread-scalable evaluation of multi-jet observables
Theoretical Physics Department, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL, 60510, USA
* e-mail: firstname.lastname@example.org
Revised: 3 June 2011
Published online: 12 July 2011
We have implemented the leading-color n-gluon amplitudes using the Berends–Giele recursion relations on a multi-threaded GPU. Speed-up factors between 150 and 300 are obtained compared to the CPU-based implementation of the same event generator. In this first paper, we study the feasibility of a GPU-based event generator with an emphasis on the constraints imposed by the hardware. Some studies of Monte Carlo convergence and accuracy are presented for PP→2,…,10 jet observables using of the order of 1011 events.
© Springer-Verlag / Società Italiana di Fisica, 2011