Type-Based Verification of Message-Passing Parallel Programs

• Main Author: Vasconcelos, Vasco T.
• Publication Date: 2014
• Other Authors: Martins, Francisco, Marques, Eduardo R. B., López, Hugo A., Santos, César, Yoshida, Nobuko
• Format: Report
• Language: eng
• Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
• Download full: http://hdl.handle.net/10451/14194
• topic: session types; message passing; type-based verification; parallel programs

We present a type-based approach to the verification of the communication structure of parallel programs. We model parallel imperative programs where a fixed number of processes, each equipped with its local memory, communicates via a rich diversity of primitives, including point-to-point messages, broadcast, reduce, and array scatter and gather. The paper proposes a decidable dependent type system incorporating abstractions for the various communication operators, a form of primitive recursion, and collective choice. Term types may refer to values in the programming language, including integer, floating point and arrays. The paper further introduces a core programming language for imperative, message-passing, parallel programming, and shows that the language enjoys progress.