Task Handler Based on (m,k)-firm Constraint Model for Managing a Set of Real-Time Controllers
Identifieur interne : 004B19 ( Main/Merge ); précédent : 004B18; suivant : 004B20Task Handler Based on (m,k)-firm Constraint Model for Managing a Set of Real-Time Controllers
Auteurs : Ning Jia [France] ; Ye-Qiong Song [France] ; Françoise Simonot-Lion [France]Source :
English descriptors
Abstract
In this paper, we study how to schedule a set of real-time tasks where each task implements a control law. These tasks share a limited computing resource. The set of tasks can switch on line from one given configuration to another one depending on the working modes of the global application. This means that some tasks may appear while other ones may be no longer activated and that the WCET of some tasks may be modified. We propose a scheduling architecture for the handling of such task instances. At each mode switching, the task handler consider the new task parameters; then it determines on line a (m,k)-constraint based scheduling strategy to apply to each task; this strategy aims to selectively discard task instances so that the schedulability of tasks is guaranteed and the overall control performance is maintained at a high level.
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type="university">Université Nancy 2</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Institut national polytechnique de Lorraine</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName></affiliation></author><author><name sortKey="Simonot Lion, Francoise" sort="Simonot Lion, Francoise" uniqKey="Simonot Lion F" first="Françoise" last="Simonot-Lion">Françoise Simonot-Lion</name><affiliation wicri:level="1"><hal:affiliation type="researchteam" xml:id="struct-2406" status="OLD"><idno type="RNSR">200218298K</idno><orgName>Real time and interoperability</orgName><orgName type="acronym">TRIO</orgName><desc><address><country key="FR"></country></address><ref type="url">http://www.inria.fr/equipes/trio</ref></desc><listRelation><relation active="#struct-160" type="direct"></relation><relation name="UMR7503" active="#struct-441569" type="indirect"></relation><relation active="#struct-300009" type="indirect"></relation><relation active="#struct-300291" type="indirect"></relation><relation active="#struct-300292" type="indirect"></relation><relation active="#struct-300293" type="indirect"></relation><relation active="#struct-2496" type="direct"></relation></listRelation><tutelles><tutelle active="#struct-160" type="direct"><org type="laboratory" xml:id="struct-160" status="OLD"><orgName>Laboratoire Lorrain de Recherche en Informatique et ses Applications</orgName><orgName type="acronym">LORIA</orgName><desc><address><addrLine>Campus Scientifique BP 239 54506 Vandoeuvre-lès-Nancy Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.loria.fr</ref></desc><listRelation><relation name="UMR7503" active="#struct-441569" 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type="acronym">Inria</orgName><desc><address><addrLine>Domaine de VoluceauRocquencourt - BP 10578153 Le Chesnay Cedex</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/en/</ref></desc></org></tutelle><tutelle active="#struct-300291" type="indirect"><org type="institution" xml:id="struct-300291" status="OLD"><orgName>Université Henri Poincaré - Nancy 1</orgName><orgName type="acronym">UHP</orgName><date type="end">2011-12-31</date><desc><address><addrLine>24-30 rue Lionnois, BP 60120, 54 003 NANCY cedex, France</addrLine><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300292" type="indirect"><org type="institution" xml:id="struct-300292" status="OLD"><orgName>Université Nancy 2</orgName><date type="end">2011-12-31</date><desc><address><addrLine>91 avenue de la Libération, BP 454, 54001 Nancy cedex</addrLine><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-300293" type="indirect"><org type="institution" xml:id="struct-300293" status="OLD"><orgName>Institut National Polytechnique de Lorraine</orgName><orgName type="acronym">INPL</orgName><date type="end">2011-12-31</date><desc><address><country key="FR"></country></address></desc></org></tutelle><tutelle active="#struct-2496" type="direct"><org type="laboratory" xml:id="struct-2496" status="OLD"><orgName>INRIA Lorraine</orgName><desc><address><addrLine>615 rue du Jardin Botanique 54600 Villers-lès-Nancy</addrLine><country key="FR"></country></address><ref type="url">http://www.inria.fr/centre-de-recherche-inria/nancy-grand-est</ref></desc><listRelation><relation active="#struct-300009" type="direct"></relation></listRelation></org></tutelle></tutelles></hal:affiliation><country>France</country><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Université Nancy 2</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="old region" nuts="2">Lorraine (région)</region></placeName><orgName type="university">Institut national polytechnique de Lorraine</orgName><orgName type="institution" wicri:auto="newGroup">Université de Lorraine</orgName></affiliation></author></analytic></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="en"><term>(m</term><term>adaptive control</term><term>k)-firm constraint</term><term>real-time distributed control</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this paper, we study how to schedule a set of real-time tasks where each task implements a control law. These tasks share a limited computing resource. The set of tasks can switch on line from one given configuration to another one depending on the working modes of the global application. This means that some tasks may appear while other ones may be no longer activated and that the WCET of some tasks may be modified. We propose a scheduling architecture for the handling of such task instances. At each mode switching, the task handler consider the new task parameters; then it determines on line a (m,k)-constraint based scheduling strategy to apply to each task; this strategy aims to selectively discard task instances so that the schedulability of tasks is guaranteed and the overall control performance is maintained at a high level.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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