94450 20200727115047.0 doi 10.1007/s10626-019-00285-x sideral 114389 ART-2019-114389 eng Rubio-Anguiano, Laura Energy-efficient thermal-aware multiprocessor scheduling for real-time tasks using TCPNs 2019 Access copy available to the general public Unrestricted We present an energy-effcient thermal-aware real-time global scheduler for a set of hard real-time (HRT) tasks running on a multiprocessor system. This global scheduler fulfills the thermal and temporal constraints by handling two independent variables, the task allocation time and the selection of clock frequency. To achieve its goal, the proposed scheduler is split into two stages. An off-line stage, based on a deadline partitioning scheme, computes the cycles that the HRT tasks must run per deadline interval at the minimum clock frequency to save energy while honoring the temporal and thermal constraints, and computes the maximum frequency at which the system can run below the maximum temperature. Then, an on-line, event-driven stage performs global task allocation applying a Fixed-Priority Zero-Laxity policy, reducing the overhead of quantum-based or interval-based global schedulers. The on-line stage embodies an adaptive scheduler that accepts or rejects soft RT aperiodic tasks throttling CPU frequency to the upper lowest available one to minimize power consumption while meeting time and thermal constraints. This approach leverages the best of two worlds: the off-line stage computes an ideal discrete HRT multiprocessor schedule, while the on-line stage manage soft real-time aperiodic tasks with minimum power consumption and maximum CPU utilization. info:eu-repo/grantAgreement/ES/DGA-FEDER/Construyendo Europa desde Aragón info:eu-repo/grantAgreement/ES/DGA/T58-17R info:eu-repo/grantAgreement/ES/MINECO/TIN2016-76635-C2-1-R info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 0.932 2019 MATHEMATICS, APPLIED 170 / 260 = 0.654 2019 Q3 T2 OPERATIONS RESEARCH & MANAGEMENT SCIENCE 72 / 83 = 0.867 2019 Q4 T3 AUTOMATION & CONTROL SYSTEMS 56 / 63 = 0.889 2019 Q4 T3 0.718 2019 Electrical and Electronic Engineering 2019 Q1 Modeling and Simulation 2019 Q2 Control and Systems Engineering 2019 Q2 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Desirena-López, Gaddiel Ramírez-Treviño, Antonio (orcid)0000-0001-5940-9837 Briz Velasco, José Luis Universidad de Zaragoza 5007 035 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Arquit.Tecnología Comput. 29, 3 (2019), 237–264 Discret. event dyn. syst. DISCRETE EVENT DYNAMIC SYSTEMS-THEORY AND APPLICATIONS 0924-6703 1619326 http://zaguan.unizar.es/record/94450/files/texto_completo.pdf Postprint 228965 http://zaguan.unizar.es/record/94450/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:94450 articulos driver 2020-07-27-11:09:52 ARTICLE