Thread-Scalable Evaluation of Multi-Jet Observables

Details Thread-Scalable Evaluation of Multi-Jet Observables Thread-Scalable Evaluation of Multi-Jet Observables

2010-02-18

arxiv.org/abs/1002.3446v1

Eur.Phys.J.C71:1703,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 5 figures, 3 tables

Scientific paper

10.1140/epjc/s10052-011-1703-5

A leading-order, leading-color parton-level event generator is developed for use on a multi-threaded GPU. Speed-up factors between 150 and 300 are obtained compared to an unoptimized CPU-based implementation of the 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 1e11 events.

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