{"title":"Guaranteeing deadlines in MAFT","authors":"M. C. McElvany","doi":"10.1109/REAL.1988.51109","DOIUrl":null,"url":null,"abstract":"The author discusses scheduling in the multicomputer architecture for fault-tolerance (MAFT), a distributed system designed to provide extremely reliable computation in real-time control systems. Scheduling in MAFT is based on a fault-tolerant variation of a priority-list schedule. The threading delay associated with agreement on task completions can cause schedules to experience Richards' anomalies, in which legitimate run-time behavior can cause tasks to miss deadlines. The author develops theory to stabilize the fault-tolerant priority list. She gives an algorithm that stabilizes a restricted class of task workloads and discusses extensions of her results to other workloads.<<ETX>>","PeriodicalId":116211,"journal":{"name":"Proceedings. Real-Time Systems Symposium","volume":"207 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings. Real-Time Systems Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/REAL.1988.51109","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 15
Abstract
The author discusses scheduling in the multicomputer architecture for fault-tolerance (MAFT), a distributed system designed to provide extremely reliable computation in real-time control systems. Scheduling in MAFT is based on a fault-tolerant variation of a priority-list schedule. The threading delay associated with agreement on task completions can cause schedules to experience Richards' anomalies, in which legitimate run-time behavior can cause tasks to miss deadlines. The author develops theory to stabilize the fault-tolerant priority list. She gives an algorithm that stabilizes a restricted class of task workloads and discusses extensions of her results to other workloads.<>
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