Cargando…

ALICE moves into warp drive

A Large Ion Collider Experiment (ALICE) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN Large Hadron Collider (LHC). Since its successful start-up in 2010, the LHC has been performing outstandingly, providing to the experi...

Descripción completa

Detalles Bibliográficos
Autores principales: Carena, F, Carena, W, Chapeland, S, Chibante Barroso, V, Costa, F, Denes, E, Divia, R, Fuchs, U, Grigore, A, Simonetti, G, Soos, C, Telesca, A, Vande Vyvre, P, von Haller, B
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1088/1742-6596/396/1/012005
http://cds.cern.ch/record/1565927
_version_ 1780930950385893376
author Carena, F
Carena, W
Chapeland, S
Chibante Barroso, V
Costa, F
Denes, E
Divia, R
Fuchs, U
Grigore, A
Simonetti, G
Soos, C
Telesca, A
Vande Vyvre, P
von Haller, B
author_facet Carena, F
Carena, W
Chapeland, S
Chibante Barroso, V
Costa, F
Denes, E
Divia, R
Fuchs, U
Grigore, A
Simonetti, G
Soos, C
Telesca, A
Vande Vyvre, P
von Haller, B
author_sort Carena, F
collection CERN
description A Large Ion Collider Experiment (ALICE) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN Large Hadron Collider (LHC). Since its successful start-up in 2010, the LHC has been performing outstandingly, providing to the experiments long periods of stable collisions and an integrated luminosity that greatly exceeds the planned targets. To fully explore these privileged conditions, we aim at maximizing the experiment's data taking productivity during stable collisions. We present in this paper the evolution of the online systems towards helping us understand reasons of inefficiency and address new requirements. This paper describes the features added to the ALICE Electronic Logbook (eLogbook) to allow the Run Coordination team to identify, prioritize, fix and follow causes of inefficiency in the experiment. Thorough monitoring of the data taking efficiency provides reports for the collaboration to portray its evolution and evaluate the measures (fixes and new features) taken to increase it. In particular, the eLogbook helps decision making by providing quantitative input, which can be used to better balance risks of changes in the production environment against potential gains in quantity and quality of physics data. It will also present the evolution of the Experiment Control System (ECS) to allow on-the-fly error recovery actions of the detector apparatus while limiting as much as possible the loss of integrated luminosity. The paper will conclude with a review of the ALICE efficiency so far and the future plans to improve its monitoring.
id cern-1565927
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
record_format invenio
spelling cern-15659272022-08-17T13:32:43Zdoi:10.1088/1742-6596/396/1/012005http://cds.cern.ch/record/1565927engCarena, FCarena, WChapeland, SChibante Barroso, VCosta, FDenes, EDivia, RFuchs, UGrigore, ASimonetti, GSoos, CTelesca, AVande Vyvre, Pvon Haller, BALICE moves into warp driveComputing and ComputersA Large Ion Collider Experiment (ALICE) is the heavy-ion detector designed to study the physics of strongly interacting matter and the quark-gluon plasma at the CERN Large Hadron Collider (LHC). Since its successful start-up in 2010, the LHC has been performing outstandingly, providing to the experiments long periods of stable collisions and an integrated luminosity that greatly exceeds the planned targets. To fully explore these privileged conditions, we aim at maximizing the experiment's data taking productivity during stable collisions. We present in this paper the evolution of the online systems towards helping us understand reasons of inefficiency and address new requirements. This paper describes the features added to the ALICE Electronic Logbook (eLogbook) to allow the Run Coordination team to identify, prioritize, fix and follow causes of inefficiency in the experiment. Thorough monitoring of the data taking efficiency provides reports for the collaboration to portray its evolution and evaluate the measures (fixes and new features) taken to increase it. In particular, the eLogbook helps decision making by providing quantitative input, which can be used to better balance risks of changes in the production environment against potential gains in quantity and quality of physics data. It will also present the evolution of the Experiment Control System (ECS) to allow on-the-fly error recovery actions of the detector apparatus while limiting as much as possible the loss of integrated luminosity. The paper will conclude with a review of the ALICE efficiency so far and the future plans to improve its monitoring.oai:cds.cern.ch:15659272012
spellingShingle Computing and Computers
Carena, F
Carena, W
Chapeland, S
Chibante Barroso, V
Costa, F
Denes, E
Divia, R
Fuchs, U
Grigore, A
Simonetti, G
Soos, C
Telesca, A
Vande Vyvre, P
von Haller, B
ALICE moves into warp drive
title ALICE moves into warp drive
title_full ALICE moves into warp drive
title_fullStr ALICE moves into warp drive
title_full_unstemmed ALICE moves into warp drive
title_short ALICE moves into warp drive
title_sort alice moves into warp drive
topic Computing and Computers
url https://dx.doi.org/10.1088/1742-6596/396/1/012005
http://cds.cern.ch/record/1565927
work_keys_str_mv AT carenaf alicemovesintowarpdrive
AT carenaw alicemovesintowarpdrive
AT chapelands alicemovesintowarpdrive
AT chibantebarrosov alicemovesintowarpdrive
AT costaf alicemovesintowarpdrive
AT denese alicemovesintowarpdrive
AT diviar alicemovesintowarpdrive
AT fuchsu alicemovesintowarpdrive
AT grigorea alicemovesintowarpdrive
AT simonettig alicemovesintowarpdrive
AT soosc alicemovesintowarpdrive
AT telescaa alicemovesintowarpdrive
AT vandevyvrep alicemovesintowarpdrive
AT vonhallerb alicemovesintowarpdrive