Speaker
Klaus SCHOSSMAIER
(CERN)
Description
The data-acquisition software framework DATE for the ALICE experiment at the LHC has
evolved over a period of several years. The latest version DATE V5 is geared for
deployment during the test and commissioning phase. The DATE software is designed to
runs on several hundred machines being installed with Scientific Linux CERN (SLC) to
handle the data streams of approximatly 400 optical Detector Data Links (DDLs) from
the ALICE sub-detectors and to write full events onto transient/permanent data
storage at a rate of up to 1.25 GB/s.
DATE V5 consists of a collection of software packages that are responsible for the
data flow and its formatting to carry out the readout, the event-building, and the
recording. Additional software packages are in charge of the control, the system
configuration, the status and error message reporting, the electronic logbook, the
data quality and performance monitoring, and the memory management. The interfaces to
the Experiment Control System (ECS) and to the High-Level Trigger (HLT) are
implemented, whereas the interfaces to the Detector Control System (DCS) and to the
Trigger System (TRG) are in design status.
This paper will present the software architecture of DATE V5, the practical
experience acquired at various detector integration setup, and future extensions.
Primary authors
Alessandro Vascotto
(CERN)
Csaba SOOS
(CERN)
Franco CARENA
(CERN)
Irina MAKHLYUEVA
(CERN)
Jean-Claude MARIN
(CERN)
Klaus SCHOSSMAIER
(CERN)
Pierre VANDE VYVRE
(CERN)
Roberto DIVIA
(CERN)
Sylvain CHAPELAND
(CERN)
Wisla CARENA
(CERN)
