{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,7]],"date-time":"2026-06-07T04:13:33Z","timestamp":1780805613268,"version":"3.54.1"},"reference-count":3,"publisher":"World Scientific Pub Co Pte Lt","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Parallel Process. Lett."],"published-print":{"date-parts":[[2007,3]]},"abstract":"<jats:p> 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 \u2013 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. <\/jats:p>","DOI":"10.1142\/s0129626407002880","type":"journal-article","created":{"date-parts":[[2007,4,11]],"date-time":"2007-04-11T11:10:57Z","timestamp":1176289857000},"page":"79-88","source":"Crossref","is-referenced-by-count":11,"title":["Open MPI: A High Performance, Flexible Implementation of MPI Point-to-Point Communications"],"prefix":"10.1142","volume":"17","author":[{"given":"Richard L.","family":"Graham","sequence":"first","affiliation":[{"name":"National Center for Computational Sciences, Oak Ridge National Laboratory, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian W.","family":"Barrett","sequence":"additional","affiliation":[{"name":"Advanced Computing Laboratory, Los Alamos National Laboratory, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Galen M.","family":"Shipman","sequence":"additional","affiliation":[{"name":"Advanced Computing Laboratory, Los Alamos National Laboratory, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Timothy S.","family":"Woodall","sequence":"additional","affiliation":[{"name":"Advanced Computing Laboratory, Los Alamos National Laboratory, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"George","family":"Bosilca","sequence":"additional","affiliation":[{"name":"Innovative Computing Laboratory, University of Tennessee, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"219","published-online":{"date-parts":[[2011,11,21]]},"reference":[{"key":"rf5","volume":"31","author":"Graham R. L.","journal-title":"International Journal of Parallel Programming"},{"key":"rf6","doi-asserted-by":"publisher","DOI":"10.1016\/0167-8191(96)00024-5"},{"key":"rf7","doi-asserted-by":"publisher","DOI":"10.1023\/B:GRID.0000024071.12177.91"}],"container-title":["Parallel Processing Letters"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S0129626407002880","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,6]],"date-time":"2019-08-06T16:14:25Z","timestamp":1565108065000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S0129626407002880"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,3]]},"references-count":3,"journal-issue":{"issue":"01","published-online":{"date-parts":[[2011,11,21]]},"published-print":{"date-parts":[[2007,3]]}},"alternative-id":["10.1142\/S0129626407002880"],"URL":"https:\/\/doi.org\/10.1142\/s0129626407002880","relation":{},"ISSN":["0129-6264","1793-642X"],"issn-type":[{"value":"0129-6264","type":"print"},{"value":"1793-642X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,3]]}}}