Seminar zur Teilchenphysik, SS 2011
Donnerstag, 19.5.2011, 16:30Uhr, D10.08
Dr. Christian Schmitt
Johannes Gutenberg-Universität Mainz
Track reconstruction using GPUs
In modern HEP experiments is the reconstruction and simulation of
collision events a major task involving up to several tenth of thousand
of standard CPUs. At the same time graphics processors (GPUs) have
become much more powerful and are by far outperforming the standard CPUs
in terms of floating point operations due to their massive parallel
approach. The usage of these GPUs could therefore significantly reduce
the overall reconstruction and simulation time or allow for the usage of
more sophisticated algorithms.
In this talk the track parameter reconstruction in the ATLAS experiment
will be used as an example on how the GPUs can be used in this context
and to show which speed up factor can be achieved.
 Slides
gez. D. Wicke
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