Design, implementation, and performance evaluation of MPI 3.0 on portals 4.0

Authors:
Amin Hassani;Anthony Skjellum;Ron Brightwell;Brian W. Barrett
Affiliations:
University of Alabama at Birmingham, Birmingham, AL;University of Alabama at Birmingham, Birmingham, AL;Sandia National Laboratories, Albuquerque, NM;Sandia National Laboratories, Albuquerque, NM
Venue:
Proceedings of the 20th European MPI Users' Group Meeting
Year:
2013

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Abstract

The latest version of the Portals interconnect programming interface contains several improvements intended for MPI point-to-point and one-sided communication operations, including new functionality defined in MPI-3. This paper discusses the rationale for these improvements to Portals and describes how they can be used in an MPI implementation. We provide preliminary micro-benchmark performance results using a reference implementation of Portals over InfiniBand Verbs and the Open MPI implementation.