| 1. |
- Campeanu, Gabriel, et al.
(författare)
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Extending the Rubus Component Model with GPU-Aware Components
- 2016
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Ingår i: Proceedings - 2016 19th International ACM SIGSOFT Symposium on Component-Based Software Engineering, CBSE 2016. - 9781509025695 ; , s. 59-68
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Konferensbidrag (refereegranskat)abstract
- To support the complex functionality expected of modern embedded systems, the trend is to supplement CPUs with Graphical Processing Units (GPUs), thus creating heterogeneous embedded systems. However, taking full advantage of GPUs increases the complexity of the development and requires dedicated support, and no such support exists in the component models currently available. The only solution today is to completely encapsulate all GPU-specific information and operations within the components, which increases the communication overhead and reduces component reusability, thus significantly limiting the applicability of component-based development to heterogeneous embedded systems. In this paper, we propose to extend Rubus, an industrial component model for embedded systems, with dedicated support for GPUs. We introduce new constructs, including GPU ports and automatically generated adapters to facilitate seamless component communication over the heterogeneous processing units, regardless of whether the components use the CPU, GPU, or both. A running example is used for the problem description, the proposed extension, and to evaluate our solution.
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| 2. |
- Crnkovic, Ivica, et al.
(författare)
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On the Use of Component-Based Principles and Practices for Architecting Cyber-Physical Systems
- 2016
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Ingår i: Proceedings - 2016 19th International ACM SIGSOFT Symposium on Component-Based Software Engineering, CBSE 2016. - 9781509025695 ; , s. 23-32
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Konferensbidrag (refereegranskat)abstract
- By focussing on Cyber Physical Systems (CPS), this paper investigates how component-based principles and practices are used and support the activity of architecting CPS. For doing so, by running a systematic process, we selected 49 primary studies from the most important publishers search engines. Those papers have been analyzed and their contents classified according to the Classification Framework for Component Models proposed in our previous work. The results show that the main concerns handled by CPS component models are those of integration, performance, and maintainability. The instruments to satisfy those concerns, while architecting CPS, are ad-hoc software/system architecture, model-based approaches, architectural and component languages, and design. The IEC 61499 standard with its functions block is remarkably used to drive the work on six papers. Java is the most frequently used programming language used for implementing the components. Components are deployed mostly at compile time. Interfaces are almost equally distributed into port-based and operation-based. Overall, the results show a transition of technologies and approaches used in Embedded Systems to CPS, but still lacking methods for integrated architecting, in particular in incremental development.
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| 3. |
- Gaetana, Sapienza, et al.
(författare)
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Extra-Functional Properties Composability for Embedded Systems Partitioning
- 2016
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Ingår i: Proceedings - 2016 19th International ACM SIGSOFT Symposium on Component-Based Software Engineering, CBSE 2016. - 9781509025695 ; , s. 69-78
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Konferensbidrag (refereegranskat)abstract
- Modern embedded systems utilize the advances in heterogeneous platforms that enable implementing functions in software (SW) and hardware (HW) components. A proper configuration of SW and HW components can significantly improve the values of the extra-functional properties such as performance and energy savings. However, due to increasing application complexity, it is difficult to find the best combination of HW and SW components. The problem basically boils down to calculate, for a given architecture, the system properties from the components' ones. In this paper, we address the problem of composability of EFPs at system level. Although in general this is not a solvable problem, we present that, under strictly specified constraints, it is possible to compose the system EFPs starting from the component ones. We start by detailing constraints related to the system architecture, platform and process development and, based on these constraints, we provide composition rules for different types of EFPs. We demonstrate the results through an industrial example.
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| 4. |
- Mubeen, Saad, et al.
(författare)
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Modeling of Legacy Distributed Embedded Systems at Vehicle Abstraction Level
- 2016
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Ingår i: Proceedings - 2016 19th International ACM SIGSOFT Symposium on Component-Based Software Engineering, CBSE 2016. - 9781509025695 ; , s. 7-12
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Konferensbidrag (refereegranskat)abstract
- A large majority of existing software development approaches in the vehicle industrial domain have a limited or no modeling support to fully reuse legacy nodes at the highest abstraction, called the vehicle level. In this paper, we introduce a new technique for model-and component-based development of vehicular distributed embedded systems at the vehicle level. The proposed technique supports not only modeling of crude nodes or Electronic Control Units but also modeling of legacy nodes whose software architectures can be partially or completely reused. As a proof of concept, we implement the modeling technique in an industrial model, the Rubus Component Model. In order to show the usability of our approach, we model a vehicular application using the extended component model and its tool suite.
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