Speaker
Dr
Fabio Cossutti
(INFN Trieste)
Description
The CMS simulation has been operational within the new CMS software
framework for more than 3 years. While the description of the
detector, in particular in the forward region, is being completed,
during the last year the emphasis of the work has been put on fine
tuning of the physics output. The existing test beam data for the
different components of the calorimetric system have been exploited to
adjust different parts of the Geant4 models for hadronic and
electromagnetic showers, as well as the CMS custom code used, in close
collaboration with Geant4 developers. Significant improvements have
been achieved in describing the data. A
consequence of this work has been a sizable deterioration of the
computing performances of the code, already under close monitoring. A
suite of performance analysis tools has been put in place and has been
used to drive several optimizations to allow the code to fit the
constraints posed by the CMS computing model.
Author
Dr
Fabio Cossutti
(INFN Trieste)
