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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 *


class Minivite(MakefilePackage):
    """miniVite is a proxy application that implements a single phase of
       Louvain method in distributed memory for graph community detection.
    """
    tags = ['proxy-app', 'ecp-proxy-app']

    homepage = "http://hpc.pnl.gov/people/hala/grappolo.html"
    git      = "https://github.com/Exa-Graph/miniVite.git"

    version('develop', branch='master')
    version('1.0', tag='v1.0')

    variant('openmp', default=True, description='Build with OpenMP support')
    variant('opt', default=True, description='Optimization flags')

    depends_on('mpi')

    @property
    def build_targets(self):
        targets = []
        cxxflags = ['-std=c++11 -g -DCHECK_NUM_EDGES -DPRINT_EXTRA_NEDGES']
        ldflags = []

        if '+openmp' in self.spec:
            cxxflags.append(self.compiler.openmp_flag)
            ldflags.append(self.compiler.openmp_flag)
        if '+opt' in self.spec:
            cxxflags.append(' -O3 ')

        targets.append('CXXFLAGS={0}'.format(' '.join(cxxflags)))
        targets.append('OPTFLAGS={0}'.format(' '.join(ldflags)))
        targets.append('CXX={0}'.format(self.spec['mpi'].mpicxx))

        return targets

    def install(self, spec, prefix):
        mkdirp(prefix.bin)
        install('dspl', prefix.bin)