Process management inside ATLAS DAQ

Alexandrov, I; Amorim, A; Badescu, E; Burckhart-Chromek, D; Caprini, M; Dobson, M; Duval, PY; Hart, R; Jones, R; Kazarov, A; Kolos, S; Kotov, V; Liko, D; Lucio, L; Mapelli, L; Mineev, M; Moneta, L; Nassiakou, M; Pedro, L; Ribeiro, A; Roumiantsev, V; Ryabov, Y; Schweiger, D; Soloviev, I; Wolters, H

dc.contributor.author	Alexandrov, I	en
dc.contributor.author	Amorim, A	en
dc.contributor.author	Badescu, E	en
dc.contributor.author	Burckhart-Chromek, D	en
dc.contributor.author	Caprini, M	en
dc.contributor.author	Dobson, M	en
dc.contributor.author	Duval, PY	en
dc.contributor.author	Hart, R	en
dc.contributor.author	Jones, R	en
dc.contributor.author	Kazarov, A	en
dc.contributor.author	Kolos, S	en
dc.contributor.author	Kotov, V	en
dc.contributor.author	Liko, D	en
dc.contributor.author	Lucio, L	en
dc.contributor.author	Mapelli, L	en
dc.contributor.author	Mineev, M	en
dc.contributor.author	Moneta, L	en
dc.contributor.author	Nassiakou, M	en
dc.contributor.author	Pedro, L	en
dc.contributor.author	Ribeiro, A	en
dc.contributor.author	Roumiantsev, V	en
dc.contributor.author	Ryabov, Y	en
dc.contributor.author	Schweiger, D	en
dc.contributor.author	Soloviev, I	en
dc.contributor.author	Wolters, H	en
dc.date.accessioned	2014-03-01T01:51:56Z
dc.date.available	2014-03-01T01:51:56Z
dc.date.issued	2002	en
dc.identifier.issn	00189499	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/26512
dc.subject	Data acquisition	en
dc.subject	Job control	en
dc.subject	Process management	en
dc.subject	Process monitoring	en
dc.subject	Software agents	en
dc.subject.other	C (programming language)	en
dc.subject.other	Client server computer systems	en
dc.subject.other	Computer operating systems	en
dc.subject.other	Computer software	en
dc.subject.other	Local area networks	en
dc.subject.other	Software agents	en
dc.subject.other	User interfaces	en
dc.subject.other	Wide area networks	en
dc.subject.other	Job control	en
dc.subject.other	Process Manager System	en
dc.subject.other	Process monitoring	en
dc.subject.other	Server client model	en
dc.subject.other	Data acquisition	en
dc.title	Process management inside ATLAS DAQ	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TNS.2002.803879	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TNS.2002.803879	en
heal.publicationDate	2002	en
heal.abstract	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 acquisition system. It is capable of starting, stopping and monitoring the status of those components on the data acquisition processors independent of the underlying operating system. Its architecture is designed on the basis of a server client model using CORBA based communication. The server part relies on C++ software agent objects acting as an interface between the local operating system and client applications. Some of the major design challenges of the software agents were to achieve the maximum degree of autonomy possible, to create processes aware of dynamic conditions in their environment and with the ability to determine corresponding actions. Issues such as the performance of the agents in terms of time needed for process creation and destruction, the scalability of the system taking into consideration the final ATLAS configuration and minimizing the used of hardware resources were also of critical importance. Besides the details given on the architecture and the implementation, we also present scalability and performance tests results of the Process Manager system.	en
heal.journalName	IEEE Transactions on Nuclear Science	en
dc.identifier.doi	10.1109/TNS.2002.803879	en
dc.identifier.volume	49 II	en
dc.identifier.issue	5	en
dc.identifier.spage	2459	en
dc.identifier.epage	2462	en