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An algebraic theory for behavioral modeling and protocol synthesis in system design. (English) Zbl 1099.68501

Summary: The design productivity gap has been recognized by the semiconductor industry as one of the major threats to the continued growth of system-on-chips and embedded systems. Ad-hoc system-level design methodologies, that lifts modeling to higher levels of abstraction, and the concept of intellectual property, that promotes reuse of existing components, are essential steps to manage design complexity. However, the issue of compositional correctness arises with these steps. Given components from different manufacturers, designed with heterogeneous models, at different levels of abstraction, assembling them in a correct-by-construction manner is a difficult challenge. We address this challenge by proposing a process algebraic model to support system design with a formal model of computation and serve as a type system to capture the behavior of system components at the interface level. The proposed algebra is conceptually minimal, equipped with a formal semantics defined in a synchronous model of computation. It supports a scalable notion and a flexible degree of abstraction. We demonstrate its benefits by considering the type-based synthesis of latency-insensitive protocols, showing that the synthesis of component wrappers can be optimized by behavioral information carried by interface type descriptions and yield minimized stalls and maximized throughput.

MSC:

68M07 Mathematical problems of computer architecture
68Q85 Models and methods for concurrent and distributed computing (process algebras, bisimulation, transition nets, etc.)
68Q10 Modes of computation (nondeterministic, parallel, interactive, probabilistic, etc.)
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