A Type Discipline for Message Passing Parallel Programs

Vasco T. Vasconcelos, Francisco Martins, Hugo Andrés López, Nobuko Yoshida

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Abstract

We present ParTypes, a type discipline for parallel programs. The model we have in mind comprises a fixed number of processes running in parallel and communicating via collective operations or point-to-point synchronous message exchanges. A type describes a protocol to be followed by each processes in a given program. We present the type theory, a core imperative programming language and its operational semantics, and prove that type checking is decidable (up to decidability of semantic entailment) and that well-typed programs do not deadlock and always terminate. The article is accompanied by a large number of examples drawn from the literature on parallel programming.

OriginalsprogEngelsk
Artikelnummer26
TidsskriftACM Transactions on Programming Languages and Systems
Vol/bind44
Udgave nummer4
Antal sider55
ISSN0164-0925
DOI
StatusUdgivet - 2022

Bibliografisk note

Funding Information:
This work was supported by FCT through project Advanced Type Systems for Multicore Programming (PTDC/EIA-CCO/122547) and the LASIGE Research Unit (UID/CEC/00408/2019), EC Cost Action EUTypes (CA15123), EPSRC (EPSRC (EP/T006544/1, EP/K011715/1, EP/K034413/1, EP/L00058X/1, EP/N027833/1, EP/N028201/1, EP/T006544/1, EP/T014709/1, EP/V000462/1, and EP/X015955/1), NCSS/EPSRC VeTSS, the Innovation Fund Denmark project EcoKnow.org (7050-00034A), and the European Union Marie Sklodowska-Curie grant agreement BehAPI (778233).

Publisher Copyright:
© 2022 Copyright held by the owner/author(s).

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