{"title":"Model Checking and Evaluating QoS of Batteries in MPSoC Dataflow Applications via Hybrid Automata","authors":"W. Ahmad, M. Jongerden, M. Stoelinga, J. Pol","doi":"10.1109/ACSD.2016.18","DOIUrl":"https://doi.org/10.1109/ACSD.2016.18","url":null,"abstract":"System lifetime is a major design constraint for battery-powered mobile embedded systems. The increasing gap between the energy demand of portable devices and their battery capacities is further limiting durability of mobile devices. Thus, the guarantees over Quality of Service (QoS) of battery-constrained devices under strict battery capacities are of primary interest for mobile embedded systems' manufacturers and stakeholders. This paper presents a novel approach for deriving QoS of applications modelled as synchronous dataflow (SDF) graphs. We map these applications on heterogeneous multiprocessor platforms that are partitioned into Voltage and Frequency Islands, together with multiple kinetic battery models (KiBaMs). By modelling the whole system as hybrid automata, and applying model-checking, we evaluate, (1) system lifetime, and (2) minimum required initial battery capacities to achieve the desired application performance. We demonstrate that our approach shows a significant improvement in terms of scalability, as compared to a priced timed automata based KiBaM model. This approach also allows early detection of design errors via model checking.","PeriodicalId":334903,"journal":{"name":"2016 16th International Conference on Application of Concurrency to System Design (ACSD)","volume":"224 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127294457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Weaving True-Concurrent Aspects Using Constraint Solvers","authors":"J. Bowles, B. Bordbar, Mohammed Alwanain","doi":"10.1109/ACSD.2016.19","DOIUrl":"https://doi.org/10.1109/ACSD.2016.19","url":null,"abstract":"Large system models usually consist of several simpler models that can be understood more easily. Making changes to the behaviour of a component will likely affect several models and could introduce accidental errors. Aspects address this by modelling new functionality required in several places as an advice, which can be integrated with the original base models by specifying a pointcut. Before checking that the overall outcome is correct, we need to weave the cross-cutting advice into the base models, and obtain new augmented models. Although considerable research has been done to weave models, many such approaches are not fully automated. This paper looks at aspect weaving of scenario-based models, where aspects are given a true-concurrent semantics based on event structures. Our contribution is a novel formal automated technique for weaving aspects using the Z3-SMT solver. We compare the performance of Alloy and Z3 to justify our choice.","PeriodicalId":334903,"journal":{"name":"2016 16th International Conference on Application of Concurrency to System Design (ACSD)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116517540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}