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- Title
Open MPI:: A High Performance, Flexible Implementation of MPI Point-to-Point Communications.
- Authors
Graham, Richard L.; Barrett, Brian W.; Shipman, Galen M.; Woodall, Timothy S.; Bosilca, George
- Abstract
Open MPI's point-to-point communications abstractions, described in this paper, handle several different communications scenarios, with a portable, high-performance design and implementation. These abstractions support two types of low-level communication protocols – general purpose point-to-point communications, like the OpenIB interface, and MPI-like interfaces, such as Myricom's MX library. Support for the first type of protocols makes use of all communications resources available to a given application run, with optional support for communications error recovery. The latter provides a interface layer, relying on the communications library to guarantee correct MPI message ordering and matching. This paper describes the three point-to-point communications protocols currently supported in the Open MPI implementation, supported with performance data. This includes comparisons with other MPI implementations using the OpenIB, MX, and GM communications libraries.
- Subjects
PPP (Computer network protocol); COMPUTER network architectures; COMPUTER networks; PARALLEL programming; DATA transmission systems; PARALLEL processing
- Publication
Parallel Processing Letters, 2007, Vol 17, Issue 1, p79
- ISSN
0129-6264
- Publication type
Article
- DOI
10.1142/S0129626407002880