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On-the-fly fast overrun budgeting for mixed-criticality systems

Biao Hu, Kai Huang, Pengcheng Huang, Lothar Thiele, Alois Knoll
2016 Proceedings of the 13th International Conference on Embedded Software - EMSOFT '16  
Our main idea is to perform overrun budgeting for all tasks as a whole, by monitoring task executions and updating a common overrun budget.  ...  In mixed-criticality scheduling, the widely assumed modeswitch scheme assumes that both high-and low-criticality tasks are schedulable when no tasks overrun (normal mode) and all high-criticality tasks  ...  In this paper, we propose an on-the-fly fast overrun budgeting (FFOB) mode-switch scheme.  ... 
doi:10.1145/2968478.2968491 dblp:conf/emsoft/Hu0HTK16 fatcat:g5hgfeiulbhevjlcmi3ziwz2g4

It's Time: OS Mechanisms for Enforcing Asymmetric Temporal Integrity [article]

Anna Lyons, Gernot Heiser
2016 arXiv   pre-print
Mixed-criticality systems combine real-time components of different levels of criticality, i.e. severity of failure, on the same processor, in order to obtain good resource utilisation.  ...  They must guarantee deadlines of highly-critical tasks at the expense of lower-criticality ones in the case of overload.  ...  Acknowledgements The authors gratefully acknowledge Hesham Almatary's help in producing the web-server benchmarks, and Björn B. Brandenburg and Leonid Ryzhyk for providing feedback on an early draft.  ... 
arXiv:1606.00111v2 fatcat:snps4qljjzddnfnkv52x5tzyl4

DVFS and Its Architectural Simulation Models for Improving Energy Efficiency of Complex Embedded Systems in Early Design Phase

2020 Computers  
This article focuses on dynamic voltage and frequency scaling (DVFS), which is a well-known system-level low-power design technique together with its more efficient implementations modeled through architectural  ...  Dealing with resource constraints is an inevitable feature of embedded systems. Power and performance are the main concerns beside others.  ...  Since task overrun is rare, this trend will reduce energy consumption for mixed-criticality systems [52] . Applying DVFS to mixed-criticality systems is not straightforward.  ... 
doi:10.3390/computers9010002 fatcat:4updttelvjadxlsk2xqmc2spt4

Comparing blunders in government

2017 European Journal of Political Research  
However, little systematic evidence exists on the record of failures of policies and major public projects in other political systems.  ...  National political and administrative systems have been frequently blamed for being disproportionately prone to generating mishaps.  ...  or properly assessed was considered a factor in cost overruns and subsequent problems experienced in development of the project (for the Dome, which largely came in on budget, it meant the structure was  ... 
doi:10.1111/1475-6765.12230 fatcat:gkvwogk5qnakvduprlwelujbvm

Preventing slips, overruns, and cancellations: Application of system accident investigations and theory to the understanding and prevention of engineering project failures

Diane C. Aloisio, Karen Marais, Rajagopalan Srinivasan
2020 PLoS ONE  
Organizations that develop or operate complex engineering systems are plagued by systems engineering failures like schedule overruns, budget exceedances, and project cancellations.  ...  Second, to address the lack of concrete guidance on identifying and preventing incipient failures, we provide specific examples of each type of failure cause and of the recommendations for preventing these  ...  A bigger problem was the fundamental concept of building one plane, with stealth technology, that could fly as far and fast as the Air Force wanted while also being able to land on the Navy's carriers  ... 
doi:10.1371/journal.pone.0229825 pmid:32142534 fatcat:vkwbu32e7fa2zgzzaxnbrxkyxi

An industrial view on the common academic understanding of mixed-criticality systems

Alexandre Esper, Geoffrey Nelissen, Vincent Nélis, Eduardo Tovar
2018 Real-time systems  
However, those standards are not, in most cases, freely available, and do not always clearly and explicitly specify the requirements for mixed-criticality systems.  ...  Such integrated systems are commonly referred to as mixed-criticality systems (MCS).  ...  Acknowledgements This work was partially supported by National Funds through FCT/MEC (Portuguese Foundation for Science and Technology) and when applicable, co-financed by ERDF (European Regional Development  ... 
doi:10.1007/s11241-018-9308-9 fatcat:uygieaggbrdnzctbpjbkjijk2y

External Risk Effect in Infrastructure Design-Build Projects with Lump Sum Contracts

2020 International Journal of Engineering and Advanced Technology  
The increase of fast completion and cost certainty demands of construction projects were encouraging the Provincial Government of DKI Jakarta to use the design-build as a project delivery system.  ...  a lump-sum contract system.  ...  Fly Over Kuningan 0 10 Fly Over Permata Hijau 0 11 Fly Over Pancoran 105 12 Fly Over Cipinang 60 13 Fly Over Bintaro 60 14 Underpass Pondok Indah 30 15 Underpass Matraman 90 16 Underpass Kuningan 15 Source  ... 
doi:10.35940/ijeat.c5533.029320 fatcat:u2lm4n4wtjb4la4oi3baq5f3mm

Spatial and temporal variability of heat, water vapor, carbon dioxide, and momentum air-sea exchange in a coastal environment

Timothy L. Crawford, Robert T. McMillen, Tilden P. Meyers, Bruce B. Hicks
1993 Journal of Geophysical Research  
The flux tower was operated on the windward beach of Florida's Bahia Honda Key, while the boat was stationed upwind between 1 and 15 km offshore.  ...  The flux measurements were made using new instrument systems, including new CO2 and H20 sensors, low-flow distortion packages, and careful sensor motion correction systems.  ...  The authors thank Billy Causey and other personnel of the Looe Key National Marine Sanctuary for making experimental logistics a joy, which could have been difficult.  ... 
doi:10.1029/93jd00628 fatcat:fu5yotfwpjhn5i5wdkoopuspmu

Information Systems Development at Internet Speed : A New Paradigm In The Making!

Richard L. Baskerville, Jan Pries-Heje
2002 European Conference on Information Systems  
The new kind of methodology implements amethodical emergent systems development as a new package of practices.  ...  Two studies from 2000-2001 -in U.S. and Denmark -have revealed that the nature of IS development has changed with the coming of Internet Speed.  ...  INTRODUCTION The Software world celebrates the Silver Anniversary of the Software Crisis where schedule and budget overruns are typical, often coupled with low quality and functionality.  ... 
dblp:conf/ecis/BaskervilleP02 fatcat:oju6j3srm5aibbbnicatyundne

EVAL: Utilizing processors with variation-induced timing errors

Smruti Sarangi, Brian Greskamp, Abhishek Tiwari, Josep Torrellas
2008 2008 41st IEEE/ACM International Symposium on Microarchitecture  
The results show that our best configuration increases processor frequency by 56% on average, allowing the processor to cycle 21% faster than without variation.  ...  For efficiency, the technique is implemented using a machinelearning algorithm.  ...  On chips where the RAM structure falls on a fast region, the whole structure is kept (Large design).  ... 
doi:10.1109/micro.2008.4771810 dblp:conf/micro/SarangiGTT08 fatcat:5wylble6wjagtbeb4skesuzjda

Restructuring the U.S. Defense Industry

Eugene Gholz, Harvey M. Sapolsky
2000 International Security  
Military Industrial Base for helpful comments on earlier drafts.  ...  Group on Consolidation, Downsizing, and Conversion in the U.S.  ...  burden on the federal budget than the current production-based system.  ... 
doi:10.1162/016228899560220 fatcat:2ebjrh56yrejjk3wkpi56sf4y4

Countering the Counterspace – Doctrinal and Operational Aspects of Preserving Space Capabilities

Attila Horváth
2019 Hadmérnök  
Ellenállás a világűrben -az űrképességek megőrzésének doktrinális és műveleti aspektusai This paper presents the outer space as a military operational domain, describes the various means an adversary could  ...  In a complex architecture of "system of systems" space capabilities, I recommend adding a fourth element to the mix, namely the service segment.  ...  However, it can be protected directly, when the diversity of the space system portfolio allows for a successful attack on one space system or asset, because the service can be provided from a different  ... 
doi:10.32567/hm.2019.3.8 fatcat:gorx2zpvkrbpzcwe6fnryf3zz4

PhD Thesis: Beyond the Traditional Analyses and Resource Management in Real-Time Systems

Federico Reghenzani, William Fornaciari
2021 Zenodo  
In addition, unconventional exploitations of probabilistic real-time are proposed for mixed-criticality, high performance computing, and energy-constrained systems.  ...  Unfortunately, the current status of probabilistic real-time is far to be acceptable for certification purposes of safety-critical systems.  ...  Most of the existing papers on MC systems adopt the system mode switch effect, i.e., dropping LO-criticality tasks when a HI-criticality task overruns its C LO i .  ... 
doi:10.5281/zenodo.5994532 fatcat:lojywt5janemfpp6lyqsphax44

Accounting, Experiential Learning and Change

Akhila Chawla
2019 Journal of Comparative International Management  
This paper aims to report on how accounting practices are framed and implicated in experiential learning, adaptation and change processes at the micro level in one of the biggest publicly delivered social  ...  They are known to be not only be the change but also be the provider of the preconditions for change.  ...  I also acknowledge support from the Ministry of Rural Development, Government of India as well as various Indian state governments, who allowed me access to conduct field research for this project in India  ... 
doi:10.7202/1062485ar fatcat:wwe4dvq2jrg65oeyo5m4algdmi

Downsizing the Federal Government

Chris Edwards
2004 Social Science Research Network  
For example, major procurements and construction projects-from highways to weapon systems-routinely have large cost overruns.  ...  Bush's first budget director, Mitch Daniels, was critical of corporate welfare.  ... 
doi:10.2139/ssrn.1461697 fatcat:47txt52l7bcg3jign454h3i6qu
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