Sciweavers

Share
PPL
2007

Open MPI: a High Performance, Flexible Implementation of MPI Point-to-Point Communications

9 years 7 months ago
Open MPI: a High Performance, Flexible Implementation of MPI Point-to-Point Communications
’s point-to-point communications abstractions, described in this paper, handle several different communications scenarios, with a portable, high-performance design and tation. 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.
Richard L. Graham, Brian Barrett, Galen M. Shipman
Added 27 Dec 2010
Updated 27 Dec 2010
Type Journal
Year 2007
Where PPL
Authors Richard L. Graham, Brian Barrett, Galen M. Shipman, Timothy S. Woodall, George Bosilca
Comments (0)
books