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Thread-Scalable Evaluation of Multi-Jet Observables

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arxiv 1002.3446 v1 pith:YXUD7J3C submitted 2010-02-18 hep-ph

Walter Giele , Gerben Stavenga , Jan-Christopher Winter This is my paper
classification hep-ph
keywords eventgeneratorobservablesaccuracycarlocomparedconstraintsconvergence
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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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