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##############################################################################
# Copyright (c) 2013-2017, 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/spack/spack
# Please also see the NOTICE and LICENSE files 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 Zfp(MakefilePackage):
"""zfp is an open source C library for compressed floating-point arrays
that supports very high throughput read and write random acces,
target error bounds or bit rates. Although bit-for-bit lossless
compression is not always possible, zfp is usually accurate to
within machine epsilon in near-lossless mode, and is often orders
of magnitude more accurate than other lossy compressors. Versions
of zfp 0.5.1 or newer also support compression of integer data.
"""
homepage = 'http://computation.llnl.gov/projects/floating-point-compression'
url = 'http://computation.llnl.gov/projects/floating-point-compression/download/zfp-0.5.1.tar.gz'
version('0.5.1', '0ed7059a9b480635e0dd33745e213d17')
version('0.5.0', '2ab29a852e65ad85aae38925c5003654')
variant('bsws',
default='64',
values=('8', '16', '32', '64'),
multi=False,
description='Bit stream word size: use smaller for finer ' \
'rate granularity. Use 8 for H5Z-ZFP filter.')
variant('shared', default=True,
description='Build shared versions of the library')
def edit(self, spec, prefix):
config_file = FileFilter('Config')
config_file.filter(
'^\s*#\s*DEFS\s*\+=\s*-DBIT_STREAM_WORD_TYPE\s*=\s*uint8',
'DEFS += -DBIT_STREAM_WORD_TYPE=uint%s' %
spec.variants['bsws'].value)
def build(self, spec, prefix):
with working_dir('src'):
if '~shared' in spec:
make('static')
else:
make('shared')
def install(self, spec, prefix):
incdir = 'include' if spec.satisfies('@0.5.1:') else 'inc'
# Note: ZFP package does not provide an install target
mkdirp(prefix.lib)
mkdirp(prefix.include)
# Note: ZFP package builds .so files even on OSX
if '~shared' in spec:
install('lib/libzfp.a', prefix.lib)
else:
install('lib/libzfp.so', prefix.lib)
install('%s/zfp.h' % incdir, prefix.include)
install('%s/bitstream.h' % incdir, prefix.include)
if spec.satisfies('@0.5.1:'):
mkdirp('%s/zfp' % prefix.include)
install('%s/zfp/system.h' % incdir, '%s/zfp' % prefix.include)
install('%s/zfp/types.h' % incdir, '%s/zfp' % prefix.include)
else:
install('%s/types.h' % incdir, prefix.include)
install('%s/system.h' % incdir, prefix.include)
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