Speaker
Mr
Jose Hernandez Calama
(CIEMAT)
Description
Monte Carlo production in CMS has received a major boost in performance and
scale since last CHEP conference. The production system has been re-engineered
in order to incorporate the experience gained in running the previous system
and to integrate production with the new CMS event data model, data management
system and data processing framework. The system is interfaced to the two major
computing Grids used by CMS, the LHC Computing Grid (LCG) and the Open Science Grid
(OSG).
Operational experience and integration aspects of the new CMS Monte Carlo
production system is presented together with an analysis of production
statistics. The new system automatically handles job resubmission, resource
monitoring, job queuing, job distribution according to the available resources,
data merging, registration of data into the data bookkeeping, data location,
data transfer and placement systems. Compared to the previous production system it
considerably improves automation, reliability and performance, eventually leading to
a system that can be run and monitored by a small number of production operators. A
more efficient use of computing resources and a better
handling of the inherent Grid unreliability have resulted in an increase of
production scale by about an order of magnitude, capable of running in parallel
at the order of ten thousand jobs and yielding more than a million events per
day.
Primary authors
Mr
Ajit Mohapatra
(University of Wisconsin)
Ms
Alessandra Fanfani
(INFN and University of Bologna)
Mr
Alexander Flossdorf
(DESY)
Mr
Alexis Pompili
(University of Bari)
Mr
Andrei Khomitch
(RWTH)
Mr
Carlos Kavka
(INFN Trieste)
Mr
Carsten Hof
(RWTH)
Mr
Christos Lazaridis
(University of Wisconsin)
Mr
Dave Evans
(FNAL)
Mr
Frank Van Lingen
(California Institute of Technology)
Mr
Giorgio Maggi
(INFN and University of Bari)
Mr
Giulio Eulisse
(Northeastern University)
Mr
Giuseppe Codispoti
(INFN and University of Bologna)
Mr
Gregory Hammad
(ULB)
Ms
Ilaria Villella
(VUB)
Mr
Joris Maes
(VUB)
Mr
Jose Afonso Lajas Sanches
(UERJ)
Mr
Jose Caballero
(CIEMAT)
Mr
Jose Hernandez Calama
(CIEMAT)
Mr
Marcello Abbrescia
(University of Bari)
Mr
Nicola De Filippis
(INFN Bari)
Mr
Peter Elmer
(Princeton University)
Mr
Peter Kreuzer
(RWTH)
Ms
Petra Van Mulders
(VUB)
Mr
Salvatore My
(INFN and University of Bari)
Mr
Sergey Kalinin
(RWTH)
Mr
Stijn De Weirdt
(VUB)
Mr
Stuart Wakefield
(Imperial College)
Mr
Subir Sarkar
(INFN Pisa)
Mr
Wen Guan
(IHEP)
Mr
William Bacchi
(INFN and University of Bologna)
