Protocol-based verification of message-passing parallel programs

Author:

López Hugo A.1,Marques Eduardo R. B.2,Martins Francisco2,Ng Nicholas3,Santos César2,Vasconcelos Vasco Thudichum2,Yoshida Nobuko3

Affiliation:

1. DTU, Denmark

2. University of Lisbon, Portugal

3. Imperial College London, UK

Abstract

We present ParTypes, a type-based methodology for the verification of Message Passing Interface (MPI) programs written in the C programming language. The aim is to statically verify programs against protocol specifications, enforcing properties such as fidelity and absence of deadlocks. We develop a protocol language based on a dependent type system for message-passing parallel programs, which includes various communication operators, such as point-to-point messages, broadcast, reduce, array scatter and gather. For the verification of a program against a given protocol, the protocol is first translated into a representation read by VCC, a software verifier for C. We successfully verified several MPI programs in a running time that is independent of the number of processes or other input parameters. This contrasts with alternative techniques, notably model checking and runtime verification, that suffer from the state-explosion problem or that otherwise depend on parameters to the program itself. We experimentally evaluated our approach against state-of-the-art tools for MPI to conclude that our approach offers a scalable solution.

Funder

Fundação para a Ciência e a Tecnologia

Engineering and Physical Sciences Research Council

Danmarks Grundforskningsfond

European Cooperation in Science and Technology

Seventh Framework Programme

Publisher

Association for Computing Machinery (ACM)

Subject

Computer Graphics and Computer-Aided Design,Software

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