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# Copyright 2013-2019 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from spack import *
class Libflame(AutotoolsPackage):
"""libflame is a portable library for dense matrix computations,
providing much of the functionality present in LAPACK, developed
by current and former members of the Science of High-Performance
Computing (SHPC) group in the Institute for Computational
Engineering and Sciences at The University of Texas at Austin.
libflame includes a compatibility layer, lapack2flame, which
includes a complete LAPACK implementation."""
homepage = "https://www.cs.utexas.edu/~flame/web/libFLAME.html"
url = "https://github.com/flame/libflame/archive/5.1.0.tar.gz"
git = "https://github.com/flame/libflame.git"
version('master', branch='master')
version('5.1.0', sha256='e7189b750890bd781fe773f366b374518dd1d89a6513d3d6261bf549826384d1')
provides('lapack', when='+lapack2flame')
variant('lapack2flame', default=True,
description='Map legacy LAPACK routine invocations'
' to their corresponding native C implementations'
' in libflame.')
variant('threads', default='no',
description='Multithreading support',
values=('pthreads', 'openmp', 'no'),
multi=False)
variant('static', default=True,
description='Build static library')
variant('shared', default=True,
description='Build shared library')
variant('debug', default=False,
description='Build with debugging support')
# TODO: Libflame prefers to defer to an external
# LAPACK library for small problems. Is this to be
# implemented in spack ?
# There is a known issue with the makefile :
# https://groups.google.com/forum/#!topic/libflame-discuss/lQKEfjyudOY
patch('Makefile_5.1.0.patch', when='@5.1.0')
def flag_handler(self, name, flags):
# -std=gnu99 at least required, old versions of GCC default to -std=c90
if self.spec.satisfies('%gcc@:5.1') and name == 'cflags':
flags.append('-std=gnu99')
return (flags, None, None)
def configure_args(self):
config_args = []
if '+lapack2flame' in self.spec:
config_args.append("--enable-lapack2flame")
else:
config_args.append("--disable-lapack2flame")
if '+static' in self.spec:
config_args.append("--enable-static-build")
else:
config_args.append("--disable-static-build")
if '+shared' in self.spec:
config_args.append("--enable-dynamic-build")
else:
config_args.append("--disable-dynamic-build")
if '+debug' in self.spec:
config_args.append("--enable-debug")
else:
config_args.append("--disable-debug")
config_args.append('--enable-multithreading='
+ self.spec.variants['threads'].value)
if 'no' != self.spec.variants['threads'].value:
config_args.append("--enable-supermatrix")
else:
config_args.append("--disable-supermatrix")
# https://github.com/flame/libflame/issues/21
config_args.append("--enable-max-arg-list-hack")
return config_args
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