S+Net: extending functional coordination with extra-functional semantics. Poss, R., Verstraaten, M., Penczek, F., Grelck, C., Kirner, R., & Shafarenko, A. Technical Report arXiv:1306.2743v1 [cs.PL], University of Amsterdam and University of Hertfordshire, June, 2013.
S+Net: extending functional coordination with extra-functional semantics [link]Paper  S+Net: extending functional coordination with extra-functional semantics [pdf]Local  abstract   bibtex   
This technical report introduces S+Net, a compositional coordination language for streaming networks with extra-functional semantics. Compositionality simplifies the specification of complex parallel and distributed applications; extra-functional semantics allow the application designer to reason about and control resource usage, performance and fault handling. The key feature of S+Net is that functional and extra-functional semantics are defined orthogonally from each other. S+Net can be seen as a simultaneous simplification and extension of the existing coordination language S-Net, that gives control of extra-functional behavior to the S-Net programmer. S+Net can also be seen as a transitional research step between S-Net and AstraKahn, another coordination language currently being designed at the University of Hertfordshire. In contrast with AstraKahn which constitutes a re-design from the ground up, S+Net preserves the basic operational semantics of S-Net and thus provides an incremental introduction of extra-functional control in an existing language.

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