text: # 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 Legion(CMakePackage):
      """Legion is a data-centric parallel programming system for writing
         portable high performance programs targeted at distributed heterogeneous
         architectures. Legion presents abstractions which allow programmers to
         describe properties of program data (e.g. independence, locality). By
         making the Legion programming system aware of the structure of program
         data, it can automate many of the tedious tasks programmers currently
         face, including correctly extracting task- and data-level parallelism
         and moving data around complex memory hierarchies. A novel mapping
         interface provides explicit programmer controlled placement of data in
         the memory hierarchy and assignment of tasks to processors in a way
         that is orthogonal to correctness, thereby enabling easy porting and
         tuning of Legion applications to new architectures.
      """
      homepage = "http://legion.stanford.edu/"
      url      = "https://github.com/StanfordLegion/legion/tarball/legion-17.02.0"
      git      = "https://github.com/StanfordLegion/legion.git"
  
      version('develop', branch='master')
      version('ctrl-rep', commit='177584e77036c9913d8a62e33b55fa784748759c')
      version('19.06.0', sha256='31cd97e9264c510ab83b1f9e8e1e6bf72021a0c6ee4a028966fce08736e39fbf')
      version('19.04.0', sha256='279bbc8dcdab4c75be570318989a9fc9821178143e9db9c3f62e58bf9070b5ac')
      version('18.12.0', sha256='71f2c409722975c0ad92f2caffcc9eaa9260f7035e2b55b731d819eb6a94016c')
      version('18.09.0', sha256='58c5a3072d2b5086225982563c23524692ca5758cbfda8d0f0a4f00ef17b3b8d')
      version('18.05.0', 'ab5ac8cd4aa4c91e6187bf1333a031bf')
      version('18.02.0', '14937b386100347b051a5fc514636353')
      version('17.10.0', 'ebfc974dc82a9d7f3ba53242ecae62e1')
      version('17.08.0', 'acc1ea8c564c4a382a015e0c9cf94574')
      version('17.02.0', '31ac3004e2fb0996764362d2b6f6844a')
  
      variant('mpi', default=True,
              description='Build on top of mpi conduit for mpi inoperability')
      variant('ibv', default=False,
              description='Build on top of ibv conduit for InfiniBand support')
      variant('shared', default=True, description='Build shared libraries')
      variant('hdf5', default=True, description='Enable HDF5 support')
      variant('build_type', default='Release', values=('Debug', 'Release'),
              description='The build type to build')
  
      depends_on("cmake@3.1:", type='build')
      depends_on("gasnet~aligned-segments~pshm segment-mmap-max='16GB'", when='~mpi')
      depends_on("gasnet~aligned-segments~pshm segment-mmap-max='16GB' +mpi", when='+mpi')
      depends_on("gasnet~aligned-segments~pshm segment-mmap-max='16GB' +ibv", when='+ibv')
      depends_on("hdf5~mpi", when='+hdf5')
  
      def cmake_args(self):
          cmake_cxx_flags = [
              '-DPRIVILEGE_CHECKS',
              '-DBOUNDS_CHECKS',
              '-DENABLE_LEGION_TLS']
  
          options = [
              '-DLegion_USE_GASNet=ON',
              '-DLEGION_USE_CUDA=OFF',
              '-DLEGION_USE_OPENMP=OFF',
              '-DLegion_BUILD_EXAMPLES=ON',
              '-DBUILD_SHARED_LIBS=%s' % ('+shared' in self.spec)]
  
          if self.spec.variants['build_type'].value == 'Debug':
              cmake_cxx_flags.append('-DDEBUG_REALM', '-DDEBUG_LEGION', '-ggdb')
  
          options.append('-DCMAKE_CXX_FLAGS=%s' % (" ".join(cmake_cxx_flags)))
  
          if '+mpi' in self.spec:
              options.append('-DGASNet_CONDUIT=mpi')
  
          if '+hdf5' in self.spec:
              options.append('-DLegion_USE_HDF5=ON')
          else:
              options.append('-DLegion_USE_HDF5=OFF')
  
          return options
  