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from spack import *
class NetlibLapack(Package):
"""
LAPACK version 3.X is a comprehensive FORTRAN library that does linear algebra operations including matrix
inversions, least squared solutions to linear sets of equations, eigenvector analysis, singular value
decomposition, etc. It is a very comprehensive and reputable package that has found extensive use in the
scientific community.
"""
homepage = "http://www.netlib.org/lapack/"
url = "http://www.netlib.org/lapack/lapack-3.5.0.tgz"
version('3.6.0', 'f2f6c67134e851fe189bb3ca1fbb5101')
version('3.5.0', 'b1d3e3e425b2e44a06760ff173104bdf')
version('3.4.2', '61bf1a8a4469d4bdb7604f5897179478')
version('3.4.1', '44c3869c38c8335c2b9c2a8bb276eb55')
version('3.4.0', '02d5706ec03ba885fc246e5fa10d8c70')
version('3.3.1', 'd0d533ec9a5b74933c2a1e84eedc58b4')
variant('debug', default=False, description='Activates the Debug build type')
variant('shared', default=True, description="Build shared library version")
variant('external-blas', default=False, description='Build lapack with an external blas')
variant('lapacke', default=True, description='Activates the build of the LAPACKE C interface')
# virtual dependency
provides('blas', when='~external-blas')
provides('lapack')
depends_on('cmake')
depends_on('blas', when='+external-blas')
def patch(self):
# Fix cblas CMakeLists.txt -- has wrong case for subdirectory name.
if self.spec.satisfies('@3.6.0:'):
filter_file('${CMAKE_CURRENT_SOURCE_DIR}/CMAKE/',
'${CMAKE_CURRENT_SOURCE_DIR}/cmake/', 'CBLAS/CMakeLists.txt', string=True)
def install_one(self, spec, prefix, shared):
cmake_args = ['-DBUILD_SHARED_LIBS:BOOL=%s' % ('ON' if shared else 'OFF'),
'-DCMAKE_BUILD_TYPE:STRING=%s' % ('Debug' if '+debug' in spec else 'Release'),
'-DLAPACKE:BOOL=%s' % ('ON' if '+lapacke' in spec else 'OFF')]
if spec.satisfies('@3.6.0:'):
cmake_args.extend(['-DCBLAS=ON']) # always build CBLAS
if '+external-blas' in spec:
# TODO : the mechanism to specify the library should be more general,
# TODO : but this allows to have an hook to an external blas
cmake_args.extend([
'-DUSE_OPTIMIZED_BLAS:BOOL=ON',
'-DBLAS_LIBRARIES:PATH=%s' % join_path(spec['blas'].prefix.lib, 'libblas.a')
])
cmake_args.extend(std_cmake_args)
build_dir = 'spack-build' + ('-shared' if shared else '-static')
with working_dir(build_dir, create=True):
cmake('..', *cmake_args)
make()
make("install")
def install(self, spec, prefix):
# Always build static libraries.
self.install_one(spec, prefix, False)
# Build shared libraries if requested.
if '+shared' in spec:
self.install_one(spec, prefix, True)
def setup_dependent_package(self, module, dspec):
# This is WIP for a prototype interface for virtual packages.
# We can update this as more builds start depending on BLAS/LAPACK.
libdir = find_library_path('libblas.a', self.prefix.lib64, self.prefix.lib)
self.spec.blas_static_lib = join_path(libdir, 'libblas.a')
self.spec.lapack_static_lib = join_path(libdir, 'liblapack.a')
if '+shared' in self.spec:
self.spec.blas_shared_lib = join_path(libdir, 'libblas.%s' % dso_suffix)
self.spec.lapack_shared_lib = join_path(libdir, 'liblapack.%s' % dso_suffix)
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