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diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm
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+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2014 Eric Bavier <bavier@member.fsf.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages mpi)
+  #:use-module (guix packages)
+  #:use-module (guix licenses)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages gcc)
+  #:use-module (srfi srfi-1))
+
+(define-public openmpi
+  (package
+    (name "openmpi")
+    (version "1.8.1")
+    (source
+     (origin
+      (method url-fetch)
+      (uri (string-append "http://www.open-mpi.org/softawre/ompi/v"
+                          (string-join (take (string-split version #\.) 2)
+                                       ".")
+                          "/downloads/openmpi-" version ".tar.bz2"))
+      (sha256
+       (base32
+        "13z1q69f3qwmmhpglarfjminfy2yw4rfqr9jydjk5507q3mjf50p"))))
+    (build-system gnu-build-system)
+    (propagated-inputs
+     `(("gfortran" ,gfortran-4.8)))
+    (arguments
+     `(#:configure-flags '("--enable-static"
+                           "--enable-oshmem"
+                           ;; Thread support causes some applications to hang
+                           ;; "--enable-event-thread-support"
+                           ;; "--enable-opal-multi-threads"
+                           ;; "--enable-orte-progress-threads"
+                           ;; "--enable-mpi-thread-multiple"
+                           "--enable-mpi-ext=all"
+                           "--with-devel-headers")))
+    (home-page "http://www.open-mpi.org")
+    (synopsis "Open source MPI-2 implementation")
+    (description
+     "The Open MPI Project is an open source MPI-2 implementation that is
+developed and maintained by a consortium of academic, research, and industry
+partners.  Open MPI is therefore able to combine the expertise, technologies,
+and resources from all across the High Performance Computing community in
+order to build the best MPI library available.  Open MPI offers advantages for
+system and software vendors, application developers and computer science
+researchers.")
+    ;; See file://LICENSE
+    (license bsd-2)))