Paper by Erik D. Demaine
- Erik D. Demaine, Ian Foster, Carl Kesselman, and Marc Snir, “Generalized Communicators in the Message Passing Interface”, IEEE Transactions on Parallel and Distributed Systems, volume 12, number 6, June 2001, pages 610–616.
We propose extensions to the Message Passing Interface (MPI) that generalize
the MPI communicator concept to allow multiple communication endpoints per
process, dynamic creation of endpoints, and the transfer of endpoints between
processes. The generalized communicator construct can be used to express a
wide range of interesting communication structures, including collective
communication operations involving multiple threads per process, communications
between dynamically created threads or processes, and object-oriented
applications in which communications are directed to specific objects.
Furthermore, this enriched functionality can be provided in a manner that
preserves backward compatibility with MPI. We describe the proposed
extensions, illustrate their use with examples, and describe a prototype
implementation in the popular MPI implementation MPICH.
- The paper is \copyright 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
- The paper is 19 pages.
- The paper is available in PostScript (221k).
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