Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parallelized and Vectorized Tracking Using Kalman Filters with CMS
  Detector Geometry and Events   The High-Luminosity Large Hadron Collider at CERN will be characterized by
greater pileup of events and higher occupancy, making the track reconstruction
even more computationally demanding. Existing algorithms at the LHC are based
on Kalman filter techniques with proven excellent physics performance under a
variety of conditions. Starting in 2014, we have been developing
Kalman-filter-based methods for track finding and fitting adapted for many-core
SIMD processors that are becoming dominant in high-performance systems.
  This paper summarizes the latest extensions to our software that allow it to
run on the realistic CMS-2017 tracker geometry using CMSSW-generated events,
including pileup. The reconstructed tracks can be validated against either the
CMSSW simulation that generated the hits, or the CMSSW reconstruction of the
tracks. In general, the code's computational performance has continued to
improve while the above capabilities were being added. We demonstrate that the
present Kalman filter implementation is able to reconstruct events with
comparable physics performance to CMSSW, while providing generally better
computational performance. Further plans for advancing the software are
discussed.

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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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The categories of this paper are: hep-ex
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: nucl-th