Speaker
D. KLOSE
(Universidade de Lisboa, Portugal)
Description
Conditions Databases are beginning to be widely used in the ATLAS
experiment. Conditions data are time-varying data describing the state of the
detector used to reconstruct the event data. This includes all sorts of slowly
evolving data like detector alignment, calibration, monitoring and data from Detector
Control System (DCS).
In this paper we'll present the interfaces between the ConditionsDB and
the DCS, Trigger and Data Acquisition (TDAQ)and offline control framework (Athena).
In the DCS case, a PVSS API Manager was developed based on the C++ interface for the
ConditionsDB. The Manager links to a selection of datapoints and stores any value
change in the ConditionsDB. The structure associated to each datapoint is mapped to a
table that reflects this structure and is stored in the database.
The ConditionsDB Interface to the TDAQ (CDI) is a service provided by
the Online Software that acts as an intermediary between TDAQ
producers and consumers of conditions data. CDI provides the pathway
to the ConditionsDB information regarding the present or past condition of
the detector and trigger system as well as all the operational and monitoring
data. It will provide the link between the Information Service (IS) and the
ConditionsDB
Conditions database integration into the ATLAS Athena framework s also described,
including connections to Athena's transient interval-of-validity management,
conversion services to support conditions data I/O into Athena transient stores, and
mechanisms by which the conditions databas may be used for timestamp-mediated access
to data stored in other technologies such as NOVA and POOL.
Primary authors
A. Amorim
(FACULTY OF SCIENCES OF THE UNIVERSITY OF LISBON)
A. Kazarov
(Petersburg Nuclear Physics Institute (PNPI))
A. Perus
(Laboratoire de l''Accelerateur Lineaire (LAL) (IN2P3) (LAL)Universite de Paris-Sud (ParisXI))
A. Schaffer
(Laboratoire de l''Accelerateur Lineaire (LAL) (IN2P3) (LAL)Universite de Paris-Sud (ParisXI))
D. Burckhart-Chromek
(CERN)
D. KLOSE
(Universidade de Lisboa, Portugal)
D. Liko
(CERN)
D. Malon
(ANL)
E. Badescu
(Institute of Atomic PhysicsNational Institute for Physics and Nuclear Engineering (IFIN-HH))
I. Soloviev
(Petersburg Nuclear Physics Institute (PNPI))
J. Cook
(CERN)
J. Flammer
(CERN)
L. Mapelli
(CERN)
L. Pedro
(FACULTY OF SCIENCES OF THE UNIVERSITY OF LISBON)
M. Caprini
(Institute of Atomic PhysicsNational Institute for Physics and Nuclear Engineering (IFIN-HH))
M. Dobson
(CERN)
M. Mineev
(Joint Institute for Nuclear Research (JINR))
N. Barros
(FACULTY OF SCIENCES OF THE UNIVERSITY OF LISBON)
R. Hawkings
(CERN)
R. Jones
(CERN, Geneva, Switzerland)
S. Kolos
(Petersburg Nuclear Physics Institute (PNPI))
T. Franco
(FACULTY OF SCIENCES OF THE UNIVERSITY OF LISBON)
V. Kotov
(Joint Institute for Nuclear Research (JINR))
Y. Alexandrov
(P.N. Lebedev Institute of Physics (FIAN)Russian Academy of Sciences)
Y. Ryabov
(High Energy Physics Division (HEPD)Theory DivisionPetersburg Nuclear Physics Institute (PNPI))
