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##############################################################################
# Copyright (c) 2013, Lawrence Livermore National Security, LLC.
# Produced at the Lawrence Livermore National Laboratory.
#
# This file is part of Spack.
# Written 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 General Public License (as published by
# the Free Software Foundation) version 2.1 dated 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 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 Fftw(Package):
"""
FFTW is a C subroutine library for computing the discrete Fourier transform (DFT) in one or more dimensions, of
arbitrary input size, and of both real and complex data (as well as of even/odd data, i.e. the discrete cosine/sine
transforms or DCT/DST). We believe that FFTW, which is free software, should become the FFT library of choice for
most applications.
"""
homepage = "http://www.fftw.org"
url = "http://www.fftw.org/fftw-3.3.4.tar.gz"
version('3.3.4', '2edab8c06b24feeb3b82bbb3ebf3e7b3')
variant('float', default=True, description='Produces a single precision version of the library')
variant('long_double', default=True, description='Produces a long double precision version of the library')
variant('quad', default=False, description='Produces a quad precision version of the library (works only with GCC and libquadmath)')
variant('openmp', default=False, description="Enable OpenMP support.")
variant('mpi', default=False, description='Activate MPI support')
depends_on('mpi', when='+mpi')
# TODO : add support for architecture specific optimizations as soon as targets are supported
def install(self, spec, prefix):
options = ['--prefix=%s' % prefix,
'--enable-shared',
'--enable-threads']
# Add support for OpenMP
if '+openmp' in spec:
# Note: Apple's Clang does not support OpenMP.
if spec.satisfies('%clang'):
ver = str(self.compiler.version)
if ver.endswith('-apple'):
raise InstallError("Apple's clang does not support OpenMP")
options.append('--enable-openmp')
if not self.compiler.f77 or not self.compiler.fc:
options.append("--disable-fortran")
if '+mpi' in spec:
options.append('--enable-mpi')
configure(*options)
make()
make("install")
if '+float' in spec:
configure('--enable-float', *options)
make()
make("install")
if '+long_double' in spec:
configure('--enable-long-double', *options)
make()
make("install")
if '+quad' in spec:
configure('--enable-quad-precision', *options)
make()
make("install")
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