GNU bug report logs - #33059
[PATCH 00/10] Add the FEniCS Project

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From: Paul Garlick <pgarlick <at> tourbillion-technology.com>
To: 33059 <at> debbugs.gnu.org
Cc: Paul Garlick <pgarlick <at> tourbillion-technology.com>
Subject: [bug#33059] [PATCH 01/10] gnu: Add python-mpi4py.
Date: Tue, 16 Oct 2018 10:31:15 +0100

* gnu/packages/simulation.scm (python-mpi4py): New variable.
---
 gnu/packages/simulation.scm | 45 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/simulation.scm b/gnu/packages/simulation.scm
index a5b661e..857d856 100644
--- a/gnu/packages/simulation.scm
+++ b/gnu/packages/simulation.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2017 Paul Garlick <pgarlick <at> tourbillion-technology.com>
+;;; Copyright © 2017, 2018 Paul Garlick <pgarlick <at> tourbillion-technology.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -36,6 +36,7 @@
   #:use-module (gnu packages multiprecision)
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages readline)
+  #:use-module (gnu packages ssh)
   #:use-module (gnu packages tls)
   #:use-module (gnu packages version-control)
   #:use-module (gnu packages xml)
@@ -43,6 +44,7 @@
   #:use-module (guix download)
   #:use-module (guix build utils)
   #:use-module (guix build-system gnu)
+  #:use-module (guix build-system python)
   #:use-module ((guix licenses) #:prefix license:)
   #:use-module (guix packages)
   #:use-module (guix utils)
@@ -221,3 +223,44 @@ with gas/liquid interfaces.  Large problems may be split into smaller, connected
 problems for efficient solution on parallel systems.")
     (license license:gpl3+)
     (home-page "https://openfoam.org")))
+
+(define-public python-mpi4py
+  (package
+    (name "python-mpi4py")
+    (version "3.0.0")
+    (source
+      (origin
+        (method url-fetch)
+        (uri (pypi-uri "mpi4py" version))
+        (sha256
+          (base32
+            "1mzgd26dfv4vwbci8gq77ss9f0x26i9aqzq9b9vs9ndxhlnv0mxl"))))
+    (build-system python-build-system)
+    (arguments
+     `(#:phases
+       (modify-phases %standard-phases
+         (add-after 'build 'mpi-setup
+           ,%openmpi-setup)
+         (add-before 'check 'pre-check
+           (lambda _
+             ;; Skip BaseTestSpawn class (causes error 'ompi_dpm_dyn_init()
+             ;; failed --> Returned "Unreachable"' in chroot environment).
+             (substitute* "test/test_spawn.py"
+               (("unittest.skipMPI\\('openmpi\\(<3.0.0\\)'\\)")
+                "unittest.skipMPI('openmpi')"))
+             #t)))))
+    (inputs
+     `(("openmpi" ,openmpi)))
+    (home-page
+      "https://bitbucket.org/mpi4py/mpi4py/")
+    (synopsis "Python bindings for the Message Passing Interface standard")
+    (description "MPI for Python (mpi4py) provides bindings of the Message
+Passing Interface (MPI) standard for the Python programming language, allowing
+any Python program to exploit multiple processors.
+
+mpi4py is constructed on top of the MPI-1/MPI-2 specification and provides an
+object oriented interface which closely follows MPI-2 C++ bindings.  It
+supports point-to-point and collective communications of any picklable Python
+object as well as optimized communications of Python objects (such as NumPy
+arrays) that expose a buffer interface.")
+    (license license:bsd-3)))
-- 
1.8.3.1

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