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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 Simplemoc(MakefilePackage):
    """The purpose of this mini-app is to demonstrate the performance
        characterterics and viability of the Method of Characteristics (MOC)
        for 3D neutron transport calculations in the context of full scale
        light water reactor simulation."""

    homepage = "https://github.com/ANL-CESAR/SimpleMOC/"
    url = "https://github.com/ANL-CESAR/SimpleMOC/archive/v4.tar.gz"

    version('4', sha256='a39906014fdb234c43bf26e1919bdc8a13097788812e0b353a492b8e568816a6')

    tags = ['proxy-app']

    variant('mpi', default=True, description='Build with MPI support')

    depends_on('mpi', when='+mpi')

    build_directory = 'src'

    @property
    def build_targets(self):

        targets = []

        cflags = '-std=gnu99'
        ldflags = '-lm'

        if self.compiler.name == 'gcc' or self.compiler.name == 'intel':
            cflags += ' ' + self.compiler.openmp_flag
        if '+mpi' in self.spec:
            targets.append('CC={0}'.format(self.spec['mpi'].mpicc))

        targets.append('CFLAGS={0}'.format(cflags))
        targets.append('LDFLAGS={0}'.format(ldflags))

        return targets

    def install(self, spec, prefix):
        mkdir(prefix.bin)
        install('src/SimpleMOC', prefix.bin)