Channel-based coordination via constraint satisfaction

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Clarke, D (Author) Other; Proença, J (Author) Other; Lazovik, A (Author) Other; Arbab, F (Author) Other

Journal

Title: Science of Computer Programming

Vol. 76

Pages: 681-710

ISSN: 0167-6423

Publisher: Elsevier

Indexing

Scopus - 27 Citations

Other information

Authenticus ID: P-00A-ADD

DOI: 10.1016/j.scico.2010.05.004

Abstract (EN): Coordination in Reo emerges from the composition of the behavioural constraints of primitives, such as channels, in a component connector. Understanding and implementing Reo, however, has been challenging due to the interaction of the channel metaphor, which is an inherently local notion, and the non-local nature of the constraints imposed by composition. In this paper, the channel metaphor takes a back seat. We focus on the behavioural constraints imposed by the composition of primitives and phrase the semantics of Reo as a constraint satisfaction problem. Not only does this provide a clear description of the behaviour of Reo connectors in terms of synchronisation and data flow constraints, it also paves the way for new implementation techniques based on constraint satisfaction. We also demonstrate that this approach is more efficient than the existing techniques based on connector colouring.

Language: English

Type (Professor's evaluation): Scientific