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Two Protocols for Scheduling Multi-mode Real-Time Systems upon Identical Multiprocessor Platforms

Vincent Nelis, Joël Goossens, Björn Andersson
2009 2009 21st Euromicro Conference on Real-Time Systems  
We consider the global and preemptive scheduling problem of multi-mode real-time systems upon identical multiprocessor platforms.  ...  We propose two protocols which ensure that all the expected requirements are met during every transition between every pair of operating modes of the system.  ...  In this paper, we propose two protocols without periodicity (a synchronous protocol and an asynchronous one) for managing every mode transition during the execution of a multi-mode real-time system on  ... 
doi:10.1109/ecrts.2009.27 dblp:conf/ecrts/NelisGA09 fatcat:n6bgaxqsobczjgbxanou4aa6yu

Scheduling multi-mode real-time systems upon uniform multiprocessor platforms

Patrick Meumeu Yomsi, Vincent Nelis, Jöel Goossens
2010 2010 IEEE 15th Conference on Emerging Technologies & Factory Automation (ETFA 2010)  
In this paper, we address the scheduling problem of multi-mode real-time systems upon uniform multiprocessor platforms.  ...  We propose two transition protocols, specified together with their schedulability test, and provide the reader with two distinct upper bounds for the length of the transient phases during mode transitions  ...  The authors would like to thank Bernard Fortz for taking part in interesting discussions.  ... 
doi:10.1109/etfa.2010.5641275 dblp:conf/etfa/YomsiNG10 fatcat:epofo7o37bh4xp4wttezgdtkai

Scheduling Multi-Mode Real-Time Systems upon Uniform Multiprocessor Platforms [article]

Patrick Meumeu Yomsi, Vincent Nelis, Joël Goossens
2010 arXiv   pre-print
In this paper, we address the scheduling problem of multi-mode real-time systems upon uniform multiprocessor platforms.  ...  We propose two transition protocols, specified together with their schedulability test, and provide the reader with two distinct upper bounds for the length of the transient phases during mode transitions  ...  The authors would like to thank Bernard Fortz for taking part in interesting discussions.  ... 
arXiv:1004.3687v1 fatcat:kk7jg6kntzckrix6kia5eco2ey

Mode Change Protocol for Multi-Mode Real-Time Systems upon Identical Multiprocessors [article]

Vincent Nélis, Joël Goossens
2008 arXiv   pre-print
In this paper, we propose a synchronous protocol without periodicity for scheduling multi-mode real-time systems upon identical multiprocessor platforms.  ...  Our proposal can be considered to be a multiprocessor extension of the uniprocessor protocol called "Minimal Single Offset protocol".  ...  In order to know if a our protocol is valid for a given multi-mode system, we need to establish a schedulability condition, i.e., a condition based on the tasks and platform characteristics which indicates  ... 
arXiv:0809.5238v1 fatcat:vsemnzwun5cdbjizfsccfv35nu

Global Scheduling of Multi-Mode Real-Time Applications upon Multiprocessor Platforms [article]

Vincent Nelis and Joël Goossens CISTER Research unit Polytechnic Institute of Porto
2011 arXiv   pre-print
We propose two distinct protocols that manage the mode transitions upon uniform and identical multiprocessor platforms at run-time, each specific to distinct task requirements.  ...  Multi-mode real-time systems are those which support applications with different modes of operation, where each mode is characterized by a specific set of tasks.  ...  Conclusion and open problems In this paper, we addressed the scheduling problem of multi-mode real-time applications upon identical and uniform multiprocessor platforms.  ... 
arXiv:1102.2094v1 fatcat:3n33mo62uzg6dc3cy33gfjoihe

Improving Mixed-Criticality System Consistency and Behavior on Multiprocessor Platforms by Means of Multi-Moded Approaches [article]

François Santy and Geoffrey Nelissen and Joël Goossens
2013 arXiv   pre-print
Recent research in the domain of real-time scheduling theory has tackled the problem of scheduling mixed-criticality systems upon uniprocessor or multiprocessor platforms, with the main objective being  ...  The suggested approaches apply to systems having two or more criticality levels.  ...  In this research, we thus seek to establish a formal link between mixed-criticality and multi-moded hard real-time systems upon identical multiprocessor platforms.  ... 
arXiv:1302.1010v1 fatcat:jealau6pnvap5hvqiqlfwerth4

Schedulability Analysis of Multiprocessor Sporadic Task Systems [chapter]

Sanjoy Baruah, Theodore Baker
2007 Chapman & Hall/CRC Computer & Information Science Series  
Introduction In this chapter we consider the scheduling of systems of independent sporadic tasks to meet hard deadlines upon platforms comprised of several identical processors.  ...  For several years, this "Dhall phenomenon" was interpreted as proof that global EDF scheduling is unsuitable for hard real-time scheduling on multiprocessors.  ... 
doi:10.1201/9781420011746.ch3 fatcat:myga35fbqfbe3coo2xreyzdlgy

Using Symmetric Multiprocessor Architectures for High Performance Computing Environments

Mohsan Tanveer, M. Aqeel Iqbal, Farooque Azam
2011 International Journal of Computer Applications  
In this research paper such kind of critical design aspects of symmetric multi processors have been analyzed for further enhancement of the existing technology.  ...  Symmetric multiprocessor is one of the modern architectures used to perform extensive computations. Symmetric multiprocessors have many configuration modes to carry out these heavy computations.  ...  Symmetric multiprocessor architectures have an extensive capability to manage multiple real time threads for active application.  ... 
doi:10.5120/3332-4582 fatcat:a3z2z33hofc3hj43iigvyovxna

Supporting execution on multiprocessor platforms

A. Burns, A. J. Wellings
2010 ACM SIGAda Ada Letters  
Multiprocessor platforms are becoming the norm for more powerful embedded real-time systems.  ...  If Ada is going to be an effective language for multiprocessor systems then it needs to address the mapping issue that will allow the programmer to express their requirements for task to processor affinity  ...  The analysis builds upon that presented at the last IRTAW [9] , but focusses on a minimum set of facilities needed to program schedulable real-time systems.  ... 
doi:10.1145/1806546.1806548 fatcat:ak375amuyfflfblsv5hr2bstg4

Finding Response Times in a Real-Time System

M. Joseph
1986 Computer journal  
This seminar provides a venue for the exchange of ideas and the discussion of interesting unsolved problems in real-time scheduling.  ...  ii iii Foreword Welcome to Porto and the 2 nd International Real-Time Scheduling Open Problems Seminar (RTSOPS 2011).  ...  Thus, multi-moded real-time systems require a more accurate analysis than classical single-mode systems, because of the criticality of mode transitions.  ... 
doi:10.1093/comjnl/29.5.390 fatcat:xsvmc5dpwjasvemenvs74lzzrm

Architecture Modelling and Task Scheduling of an Integrated Parallel CNC System in Docker Containers Based on Colored Petri Nets

Hongyu Jin, Yang Wang, Qian Wang, Jiankang Liu, Shuhua Wang, Jun Zhang, Shanghua Hao, Hongya Fu
2019 IEEE Access  
According to the developed test platform, the real time of the virtual system environment, real-time system environment, and the communication module of integrated CNC are analyzed.  ...  For the modeling of system architecture, the colored Petri nets are used to establish the models of CNC system and task scheduling.  ...  ACKNOWLEDGMENT The authors would like to thank the anonymous reviewers for their careful, constructive and insightful comments to improve the quality of the present contribution.  ... 
doi:10.1109/access.2019.2909774 fatcat:lcprrsb76bepzephzlrbmn3una

Multiprocessor Real-Time Locking Protocols: A Systematic Review [article]

Björn B. Brandenburg
2019 arXiv   pre-print
We systematically survey the literature on analytically sound multiprocessor real-time locking protocols from 1988 until 2018, covering the following topics: progress mechanisms that prevent the lock-holder  ...  preemption problem, spin-lock protocols, binary semaphore protocols, independence-preserving (or fully preemptive) locking protocols, reader-writer and k-exclusion synchronization, support for nested  ...  We hence focus in the following on semaphore-based protocols for multiprocessor real-time systems.  ... 
arXiv:1909.09600v1 fatcat:tmqcpiuxfbbd5jrcecgvoeanpm

Globally scheduled real-time multiprocessor systems with GPUs

Glenn A. Elliott, James H. Anderson
2011 Real-time systems  
We present two real-time analysis methods, addressing realworld platform constraints, for such an integration into a soft real-time multiprocessor system and show that a GPU can be exploited to achieve  ...  While the motivations for developing systems with GPUs are clear, little research in the real-time systems field has been done to integrate GPUs into real-time multiprocessor systems.  ...  We may consider several real-time multiprocessor locking protocols to protect the GPU critical section. Such a protocol should have several properties.  ... 
doi:10.1007/s11241-011-9140-y fatcat:dxafirzd5zaxhgpck7v7e5o4xu

The low power energy aware processing (LEAP) embedded networked sensor system

D. Mclntire, K. Ho, B. Yip, A. Singh, W. Wu, W.J. Kaiser
2006 2006 5th International Conference on Information Processing in Sensor Networks  
Embedded wireless networked sensor, energy-aware multiprocessor platform, sensor platform hardware and software architecture.  ...  Prior development of ENS platforms has resulted in low power systems well matched to the requirements for supporting low power sensor devices (for example, thermistor transducers for temperature sensing  ...  The optimization problem is observed to be further compounded for multi-user, multi-application systems operating with different application objectives.  ... 
doi:10.1109/ipsn.2006.243913 fatcat:lvrumubxpbhurhgaacm6ywfg5y

The low power energy aware processing (LEAP)embedded networked sensor system

Dustin McIntire, Kei Ho, Bernie Yip, Amarjeet Singh, Winston Wu, William J. Kaiser
2006 Proceedings of the fifth international conference on Information processing in sensor networks - IPSN '06  
Embedded computing demands for these new platforms include support for computationally intensive image and signal processing as well as optimization and statistical computing.  ...  A broad range of embedded networked sensor (ENS) systems for critical environmental monitoring applications now require complex, high peak power dissipating sensor devices, as well as on-demand high performance  ...  The optimization problem is observed to be further compounded for multi-user, multi-application systems operating with different application objectives.  ... 
doi:10.1145/1127777.1127846 dblp:conf/ipsn/McIntireHYSWK06 fatcat:nfmofetivrgu5b6df3bgrfa3g4
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