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# Copyright 2013-2018 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 *
import re
import os
import glob
class Zoltan(Package):
"""The Zoltan library is a toolkit of parallel combinatorial algorithms
for parallel, unstructured, and/or adaptive scientific
applications. Zoltan's largest component is a suite of dynamic
load-balancing and partitioning algorithms that increase
applications' parallel performance by reducing idle time. Zoltan
also has graph coloring and graph ordering algorithms, which are
useful in task schedulers and parallel preconditioners.
"""
homepage = "http://www.cs.sandia.gov/zoltan"
url = "http://www.cs.sandia.gov/~kddevin/Zoltan_Distributions/zoltan_distrib_v3.83.tar.gz"
version('3.83', '1ff1bc93f91e12f2c533ddb01f2c095f')
version('3.8', '9d8fba8a990896881b85351d4327c4a9')
version('3.6', '9cce794f7241ecd8dbea36c3d7a880f9')
version('3.3', '5eb8f00bda634b25ceefa0122bd18d65')
variant('debug', default=False, description='Builds a debug version of the library.')
variant('shared', default=True, description='Builds a shared version of the library.')
variant('fortran', default=True, description='Enable Fortran support.')
variant('mpi', default=True, description='Enable MPI support.')
variant('parmetis', default=False, description='Enable ParMETIS support.')
depends_on('mpi', when='+mpi')
depends_on('parmetis@4:', when='+parmetis')
depends_on('metis', when='+parmetis')
conflicts('+parmetis', when='~mpi')
def install(self, spec, prefix):
# FIXME: The older Zoltan versions fail to compile the F90 MPI wrappers
# because of some complicated generic type problem.
if spec.satisfies('@:3.6+fortran+mpi'):
raise RuntimeError(('Cannot build Zoltan v{0} with +fortran and '
'+mpi; please disable one of these features '
'or upgrade versions.').format(self.version))
config_args = [
self.get_config_flag('f90interface', 'fortran'),
self.get_config_flag('mpi', 'mpi'),
]
config_cflags = [
'-O0' if '+debug' in spec else '-O3',
'-g' if '+debug' in spec else '',
]
if '+shared' in spec:
config_args.append('RANLIB=echo')
config_args.append('--with-ar=$(CXX) -shared $(LDFLAGS) -o')
config_cflags.append(self.compiler.pic_flag)
if spec.satisfies('%gcc'):
config_args.append('--with-libs=-lgfortran')
if spec.satisfies('%intel'):
config_args.append('--with-libs=-lifcore')
if '+parmetis' in spec:
config_args.append('--with-parmetis')
config_args.append('--with-parmetis-libdir={0}'
.format(spec['parmetis'].prefix.lib))
config_args.append('--with-parmetis-incdir={0}'
.format(spec['parmetis'].prefix.include))
config_args.append('--with-incdirs=-I{0}'
.format(spec['metis'].prefix.include))
config_args.append('--with-ldflags=-L{0}'
.format(spec['metis'].prefix.lib))
if '+mpi' in spec:
config_args.append('CC={0}'.format(spec['mpi'].mpicc))
config_args.append('CXX={0}'.format(spec['mpi'].mpicxx))
config_args.append('FC={0}'.format(spec['mpi'].mpifc))
config_args.append('--with-mpi={0}'.format(spec['mpi'].prefix))
mpi_libs = self.get_mpi_libs()
# NOTE: Some external mpi installations may have empty lib
# directory (e.g. bg-q). In this case we need to explicitly
# pass empty library name.
if mpi_libs:
mpi_libs = ' -l'.join(mpi_libs)
config_args.append('--with-mpi-libs=-l{0}'.format(mpi_libs))
else:
config_args.append('--with-mpi-libs= ')
# NOTE: Early versions of Zoltan come packaged with a few embedded
# library packages (e.g. ParMETIS, Scotch), which messes with Spack's
# ability to descend directly into the package's source directory.
source_directory = self.stage.source_path
if spec.satisfies('@:3.6'):
zoltan_directory = 'Zoltan_v{0}'.format(self.version)
source_directory = join_path(source_directory, zoltan_directory)
build_directory = join_path(source_directory, 'build')
with working_dir(build_directory, create=True):
config = Executable(join_path(source_directory, 'configure'))
config(
'--prefix={0}'.format(prefix),
'--with-cflags={0}'.format(' '.join(config_cflags)),
'--with-cxxflags={0}'.format(' '.join(config_cflags)),
'--with-fcflags={0}'.format(' '.join(config_cflags)),
*config_args
)
# NOTE: Earlier versions of Zoltan cannot be built in parallel
# because they contain nested Makefile dependency bugs.
make(parallel=not spec.satisfies('@:3.6+fortran'))
make('install')
# NOTE: Unfortunately, Zoltan doesn't provide any configuration
# options for the extension of the output library files, so this
# script must change these extensions as a post-processing step.
if '+shared' in spec:
for lib_path in glob.glob(join_path(prefix, 'lib', '*.a')):
lib_static_name = os.path.basename(lib_path)
lib_shared_name = re.sub(r'\.a$', '.{0}'.format(dso_suffix),
lib_static_name)
move(lib_path, join_path(prefix, 'lib', lib_shared_name))
def get_config_flag(self, flag_name, flag_variant):
flag_pre = 'en' if '+{0}'.format(flag_variant) in self.spec else 'dis'
return '--{0}able-{1}'.format(flag_pre, flag_name)
# NOTE: Zoltan assumes that it's linking against an MPI library that can
# be found with '-lmpi,' which isn't the case for many MPI packages. This
# function finds the names of the actual libraries for Zoltan's MPI dep.
def get_mpi_libs(self):
mpi_libs = set()
for lib_path in glob.glob(join_path(self.spec['mpi'].prefix.lib, '*')):
mpi_lib_match = re.match(
r'^(lib)((\w*)mpi(\w*))\.((a)|({0}))$'.format(dso_suffix),
os.path.basename(lib_path))
if mpi_lib_match:
mpi_libs.add(mpi_lib_match.group(2))
return list(mpi_libs)
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