Add PFFT parallel FFT package (#2255)

* Add PFFT parallel FFT package

* pfft: fix non-double precision

var/spack/repos/builtin/packages/fftw/package.py

@@ -39,6 +39,9 @@ class Fftw(Package):
     version('3.3.5', '6cc08a3b9c7ee06fdd5b9eb02e06f569')
     version('3.3.4', '2edab8c06b24feeb3b82bbb3ebf3e7b3')
 
+    patch('pfft-3.3.5.patch', when="@3.3.5+pfft_patches", level=0)
+    patch('pfft-3.3.4.patch', when="@3.3.4+pfft_patches", level=0)
+
     variant(
         'float', default=True,
         description='Produces a single precision version of the library')
@@ -51,8 +54,13 @@ class Fftw(Package):
                     '(works only with GCC and libquadmath)')
     variant('openmp', default=False, description="Enable OpenMP support.")
     variant('mpi', default=False, description='Activate MPI support')
+    variant(
+        'pfft_patches', default=False,
+        description='Add extra transpose functions for PFFT compatibility')
 
     depends_on('mpi', when='+mpi')
+    depends_on('automake', type='build', when='+pfft_patches')
+    depends_on('autoconf', type='build', when='+pfft_patches')
 
     # TODO : add support for architecture specific optimizations as soon as
     # targets are supported
@@ -77,6 +85,10 @@ def install(self, spec, prefix):
         if '+mpi' in spec:
             options.append('--enable-mpi')
 
+        if '+pfft_patches' in spec:
+            autoreconf = which('autoreconf')
+            autoreconf('-ifv')
+
         configure(*options)
         make()
         if self.run_tests:

var/spack/repos/builtin/packages/pfft/package.py

+##############################################################################
+# Copyright (c) 2013-2016, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/llnl/spack
+# Please also see the LICENSE file for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program 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 terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack import *
+
+
+class Pfft(AutotoolsPackage):
+    """PFFT is a software library for computing massively parallel,
+       fast Fourier transformations on distributed memory architectures.
+       PFFT can be understood as a generalization of FFTW-MPI to
+       multidimensional data decomposition."""
+
+    homepage = "https://www-user.tu-chemnitz.de/~potts/workgroup/pippig/software.php.en"
+    url      = "https://www-user.tu-chemnitz.de/~potts/workgroup/pippig/software/pfft-1.0.8-alpha.tar.gz"
+
+    version('1.0.8-alpha', '46457fbe8e38d02ff87d439b63dc0709')
+
+    depends_on('fftw+mpi+pfft_patches')
+    depends_on('mpi')
+
+    def install(self, spec, prefix):
+        options = ['--prefix={0}'.format(prefix)]
+        if not self.compiler.f77 or not self.compiler.fc:
+            options.append("--disable-fortran")
+
+        configure(*options)
+        make()
+        if self.run_tests:
+            make("check")
+        make("install")
+
+        if '+float' in spec['fftw']:
+            configure('--enable-float', *options)
+            make()
+            if self.run_tests:
+                make("check")
+            make("install")
+        if '+long_double' in spec['fftw']:
+            configure('--enable-long-double', *options)
+            make()
+            if self.run_tests:
+                make("check")
+            make("install")