A Beowulf-class computing cluster for the Monte Carlo production of the LHCb experiment

G. Avoni, M. Bargiotti, A. Bertin, M. Bruschi, M. Capponi, A. Carbone, A. Collamati, S. De Castro, L. Fabbri, P. Faccioli, D. Galli, B. Giacobbe (+12 others)
2003 Computer Physics Communications  
The computing cluster built at Bologna to provide the LHCb Collaboration with a powerful Monte Carlo production tool is presented. It is a performance oriented Beowulf-class cluster, made of rack mounted commodity components, designed to minimize operational support requirements and to provide full and continuous availability of the computing resources. In this paper we describe the architecture of the cluster, and discuss the technical solutions adopted for each specialized sub-system. (V.M.
more » ... gnoni). cross section) to make precise measurements of CPviolation and rare decays of the B-mesons [1]. By over-constraining the Cabibbo-Kobayashi-Maskawa matrix elements, LHCb will hopefully be able to observe subtle inconsistencies with the Standard Model, therefore providing indications of New Physics. The LHCb experiment will be fully operational already at the start-up of LHC, because it requires only a "modest" luminosity L = 2 · 10 32 cm −2 s −1 to develop its full performance potential. This is two orders of magnitude lower than the nominal luminosity of LHC 0010-4655/02/$ -see front matter  2002 Elsevier Science B.V. All rights reserved. PII: S 0 0 1 0 -4 6 5 5 ( 0 2 ) 0 0 6 7 7 -X
doi:10.1016/s0010-4655(02)00677-x fatcat:y32wmvnirveodofoiksyv6ktse