Speaker
Dr
Markus Frank
(CERN)
Description
The High Level Trigger and Data Acquisition system selects about 2 kHz of
events out of the 40 MHz of beam crossings. The selected events are sent to
permanent storage for subsequent analysis.
In order to ensure the quality of the collected data, indentify possible
malfunctions of the detector and perform calibration and alignment checks, a
small fraction of the accepted events is sent to a monitoring farm, which
consists of a few tens of general purpose PCs.
This contribution introduces the architecture of the data stream splitting
mechanism from the storage system to the monitoring farm, where the raw
data are analyzed by dedicated tasks. It describes the collaborating software
components that are all based on the Gaudi event processing framework.
| Submitted on behalf of Collaboration (ex, BaBar, ATLAS) | LHCb Online |
|---|
Author
Dr
Markus Frank
(CERN)
