L. Mapelli
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Experience with CORBA communication middleware in the ATLAS DAQ. Open
As modern High Energy Physics (HEP) experiments require more distributed computing power to fulfill their demands, the need of an efficient distributed online services for control, configuration and monitoring in such experiments becomes i…
Online software for the ATLAS test beam data acquisition system Open
The Online Software is the global system software of the ATLAS Data Acquisition (DAQ) System, being responsible for the configuration, control and information sharing of the ATLAS DAQ System. A Test Beam facility offers the ATLAS detectors…
Control in the ATLAS TDAQ System Open
TDAQ system requires a comprehensive and flexible control system. Its role ranges from the so-called run-control, e.g. starting and stopping the data taking, to error handling and fault tolerance. It also includes initialization and verifi…
View article: Performance of the ATLAS DAQ DataFlow system
Performance of the ATLAS DAQ DataFlow system Open
The baseline DAQ architecture of the ATLAS Experiment at LHC is introduced and its present implementation and the performance of the DAQ components as measured in a laboratory environment are summarized. It will be shown that the discrete …
An on-line Integrated Bookkeeping: electronic run log book and Meta-Data Repository for ATLAS Open
In the context of the ATLAS experiment there is growing evidence of the importance of different kinds of Meta-data including all the important details of the detector and data acquisition that are vital for the analysis of the acquired dat…
Verification and Diagnostics Framework in ATLAS Trigger/DAQ Open
Trigger and data acquisition (TDAQ) systems for modern HEP experiments are composed of thousands of hardware and software components depending on each other in a very complex manner. Typically, such systems are operated by non-expert shift…
Verification and Diagnostics Framework in ATLAS Trigger/DAQ Open
Trigger and data acquisition (TDAQ) systems for modern HEP experiments are composed of thousands of hardware and software components depending on each other in a very complex manner. Typically, such systems are operated by non-expert shift…
Online Monitoring software framework in the ATLAS experiment Open
A fast, efficient and comprehensive monitoring system is a vital part of any HEP experiment. This paper describes the software framework that will be used during ATLAS data taking to monitor the state of the data acquisition and the qualit…
Process Management inside ATLAS DAQ Open
The Process Management component of the online software of the future ATLAS experiment data acquisition system is presented. The purpose of the Process Manager is to perform basic job control of the software components of the data acquisit…
Using Linux PCs in DAQ applications Open
ATLAS Data Acquisition/Event Filter "-1" (DAQ/EF1) project provides the opportunity to explore the use of commodity hardware (PCs) and Open Source Software (Linux) in DAQ applications. In DAQ/EF-1 there is an element called the LDAQ which …
Performance and scalability of the back-end sub-system in the ATLAS DAQ/EF prototype Open
The DAQ group of the future ATLAS experiment has developed a prototype system based on the trigger/DAQ architecture described in the ATLAS Technical Proposal to support studies of the full system functionality, architecture as well as avai…
Applications of CORBA in the ATLAS prototype DAQ Open
This paper presents the experience of using the Common Object Request Broker Architecture (CORBA) in the ATLAS prototype DAQ project. Many communication links in the DAQ system have been designed and implemented using the CORBA standard. A…
Impact of software review and inspection Open
The Software Review has been part of the software process for the ATLAS Data Acquisition Project DAQ/EF-1 since its start in 1996. Taking the form of an informal review, the software is presented at each of its phases to the group during a…
EXPERIENCE USING A DISTRIBUTED OBJECT ORIENTED DATABASE FOR A DAQ SYSTEM Open
To configure the RD13 data acquisition system* we need many parameters which describe the various hardware and software components. Such information has been defined using an entity-relation model and stored in a commercial memory-resident…
STUDIES ON SWITCH-BASED EVENT BUILDING SYSTEMS IN RD13 Open
One of the goals of the RD13 project at CERN is to investigate the feasibility of parallel event building system for detectors at the LHC.Studies were performed by building a prototype based on the HiPPI standard and by modelling this prot…