Automatic Distributed Code Generation from Formal Models of Asynchronous Concurrent Processes
2015 23rd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing
Formal process languages inheriting the concurrency and communication features of process algebras are convenient formalisms to model distributed applications, especially when they are equipped with formal verification tools (e.g., modelcheckers) to help hunting for bugs early in the development process. However, even starting from a fully verified formal model, bugs are likely to be introduced while translating (generally by hand) the concurrent model -which relies on high-level and expressive
... communication primitives-into the distributed implementation -which often relies on low-level communication primitives. In this paper, we present DLC, a compiler that enables distributed code to be generated from models written in a formal process language called LNT, which is equipped with a rich verification toolbox named CADP. The generated code can be either executed in an autonomous way (i.e., without requiring additional code to be defined by the user), or connected to external software through user-modifiable C functions. We present an experiment where DLC generates a distributed implementation from the LNT model of the Raft consensus algorithm. This work was partly funded by the French Fonds national pour la Société Numérique (FSN), Pôles Minalogic, Systematic and SCS (project OpenCloudware). Experiments presented in this paper were carried out using the Grid'5000 testbed, supported by a scientific interest group hosted by Inria and including CNRS, RENATER and several Universities as well as other organizations (see https://www.grid5000.fr).