Negative Results on Idle Intervals and Periodicity for Multiprocessor Scheduling under EDF
Identifieur interne : 004965 ( Main/Exploration ); précédent : 004964; suivant : 004966Negative Results on Idle Intervals and Periodicity for Multiprocessor Scheduling under EDF
Auteurs : Christelle Braun [France] ; Liliana Cucu [France]Source :
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Abstract
In this paper we present negative results for global scheduling of implicit deadlines periodic systems under EDF. We reconsider the definition of the idle intervals from the uniprocessor case to the multiprocessor case. Unfortunately, this new definition does not provide feasibility results for these systems. We prove that the periodicity of an EDF-feasible schedule does not hold from the uniprocessor case to the multiprocessor case. A discussion for calculating this instant is provided.
Url:
Affiliations:
- France
- Grand Est, Lorraine (région)
- Nancy
- Institut national polytechnique de Lorraine, Université Nancy 2, Université de Lorraine
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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>global</term><term>multiprocessor</term><term>scheduling</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this paper we present negative results for global scheduling of implicit deadlines periodic systems under EDF. We reconsider the definition of the idle intervals from the uniprocessor case to the multiprocessor case. Unfortunately, this new definition does not provide feasibility results for these systems. We prove that the periodicity of an EDF-feasible schedule does not hold from the uniprocessor case to the multiprocessor case. A discussion for calculating this instant is provided.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Grand Est</li><li>Lorraine (région)</li></region><settlement><li>Nancy</li></settlement><orgName><li>Institut national polytechnique de Lorraine</li><li>Université Nancy 2</li><li>Université de Lorraine</li></orgName></list><tree><country name="France"><region name="Grand Est"><name sortKey="Braun, Christelle" sort="Braun, Christelle" uniqKey="Braun C" first="Christelle" last="Braun">Christelle Braun</name></region><name sortKey="Cucu, Liliana" sort="Cucu, Liliana" uniqKey="Cucu L" first="Liliana" last="Cucu">Liliana Cucu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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