http://www.cnr.it/ontology/cnr/individuo/prodotto/ID280531

A New Generation of Real-Time Systems in the JET Tokamak (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

A New Generation of Real-Time Systems in the JET Tokamak (Articolo in rivista) (literal)

Anno

2014-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1109/TNS.2014.2308923 (literal)

Alternative label

Alves D.; Neto A.C.; Valcarcel D.F.; Felton R.; Lopez J.M.; Barbalace A.; Boncagni L.; Card P.; De Tommasi G.; Goodyear A.; Jachmich S.; Lomas P.J.; Maviglia F.; McCullen P.; Murari A.; Rainford M.; Reux C.; Rimini F.; Sartori F.; Stephen A.V.; Vega J.; Vitelli R.; Zabeo L.; Zastrow K.-D. (2014)
A New Generation of Real-Time Systems in the JET Tokamak
in IEEE transactions on nuclear science; IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 (Stati Uniti d'America)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Alves D.; Neto A.C.; Valcarcel D.F.; Felton R.; Lopez J.M.; Barbalace A.; Boncagni L.; Card P.; De Tommasi G.; Goodyear A.; Jachmich S.; Lomas P.J.; Maviglia F.; McCullen P.; Murari A.; Rainford M.; Reux C.; Rimini F.; Sartori F.; Stephen A.V.; Vega J.; Vitelli R.; Zabeo L.; Zastrow K.-D. (literal)

Pagina inizio

711 (literal)

Pagina fine

719 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

IEEE transactions on nuclear science (Online) - Attiva dal: 1963 - Editore: Professional Technical Group on Nuclear Science - New York, N.Y. - Paese di pubblicazione: Stati Uniti d'America - Lingua: inglese - e-Issn: 1558-1578 - Titolo chiave: IEEE transactions on nuclear science (Online) - Titolo proprio: IEEE transactions on nuclear science (Online) - Titolo abbreviato: IEEE trans. on nucl. sci. (Online) - Titoli alternativi: Transactions on nuclear science (Online) Nuclear science (Online) - Nuclear medical and imaging sciences (NMIS) (Online) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6782693 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

61 (literal)

Rivista

IEEE transactions on nuclear science (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

9 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

2 (literal)

Note

ISI Web of Science (WOS) (literal)
Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

1,2,3 : Associação Euratom/IST, Instituto de Plasmas e Fusão Nuclear, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal; 4,8,10,12,14,16,18,20,24 : EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB, United Kingdom; 5 : CAEND, Universidad Politcnica de Madrid, 28031 Madrid, Spain; 6,15 : Associazione EURATOM-ENEA sulla Fusione, Consorzio RFX, 35131 Padova, Italy; 7 : Associazione EURATOM/ENEA, 00040 Frascati, Italy; 9,13 : Associazione EURATOM-ENEA-CREATE, Univ. di Napoli Federico II, 80125 Napol, Italy; 11 : EURATOM-Association Belgian State, Brussels, Belgium and Culham Science Centre, Abingdon, OX14 3DB, United Kingdom; 17 : LPP, CNRS UMR 7648, 91128 Palaiseau, France; 19 : Fusion for Energy, 08019 Barcelona, Spain; 21 : Asociacion EURATOMCIEMAT, 28040 Madrid, Spain; 22 : Dipartimento di Informatica, Sistemi e Produzione, Università di Roma Tor Vergata, 00133 Rome, Italy; 23 : ITER Organization, St. Paul-Lez-Durance 13108, France. (literal)

Titolo

A New Generation of Real-Time Systems in the JET Tokamak (literal)

Abstract

Recently, a new recipe for developing and deploying real-time systems has become increasingly adopted in the JET tokamak. Powered by the advent of x86 multi-core technology and the reliability of JET's well established Real-Time Data Network (RTDN) to handle all real-time I/O, an official Linux vanilla kernel has been demonstrated to be able to provide real-time performance to user-space applications that are required to meet stringent timing constraints. In particular, a careful rearrangement of the Interrupt ReQuests' (IRQs) affinities together with the kernel's CPU isolation mechanism allows one to obtain either soft or hard real-time behavior depending on the synchronization mechanism adopted. Finally, the Multithreaded Application Real-Time executor (MARTe) framework is used for building applications particularly optimised for exploring multi-core architectures. In the past year, four new systems based on this philosophy have been installed and are now part of JET's routine operation. The focus of the present work is on the configuration aspects that enable these new systems' real-time capability. Details are given about the common real-time configuration of these systems, followed by a brief description of each system together with results regarding their real-time performance. A cycle time jitter analysis of a user-space MARTe based application synchronizing over a network is also presented. The goal is to compare its deterministic performance while running on a vanilla and on a Messaging Real time Grid (MRG) Linux kernel. (literal)

Editore