old_contents: # 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 Nccl(MakefilePackage):
      """Optimized primitives for collective multi-GPU communication."""
  
      homepage = "https://github.com/NVIDIA/nccl"
      url      = "https://github.com/NVIDIA/nccl/archive/v1.3.4-1.tar.gz"
  
      version('2.3.5-5',
              sha256='bac9950b4d3980c25baa8e3e4541d2dfb4d21edf32ad3b89022d04920357142f')
      version('2.2', '5b9ce7fbdce0fde68e0f66318e6ff422')
      version('1.3.4-1', '5b9ce7fbdce0fde68e0f66318e6ff422')
      version('1.3.0-1', 'f6fb1d56913a7d212ca0c300e76f01fb')
  
      depends_on('cuda')
  
      @property
      def build_targets(self):
          return ['CUDA_HOME={0}'.format(self.spec['cuda'].prefix)]
  
      @property
      def install_targets(self):
          if self.version >= Version('2.3.5-5'):
              return ['PREFIX={0}'.format(self.prefix), 'src.install']
          else:
              return ['PREFIX={0}'.format(self.prefix), 'install']
  
new_contents: # 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 Nccl(MakefilePackage):
      """Optimized primitives for collective multi-GPU communication."""
  
      homepage = "https://github.com/NVIDIA/nccl"
      url      = "https://github.com/NVIDIA/nccl/archive/v1.3.4-1.tar.gz"
  
      version('2.3.7-1', sha256='e6eff80d9d2db13c61f8452e1400ca2f098d2dfe42857cb23413ce081c5b9e9b')
      version('2.3.5-5', sha256='bac9950b4d3980c25baa8e3e4541d2dfb4d21edf32ad3b89022d04920357142f')
      version('2.2',     '5b9ce7fbdce0fde68e0f66318e6ff422')
      version('1.3.4-1', '5b9ce7fbdce0fde68e0f66318e6ff422')
      version('1.3.0-1', 'f6fb1d56913a7d212ca0c300e76f01fb')
  
      depends_on('cuda')
  
      @property
      def build_targets(self):
          return ['CUDA_HOME={0}'.format(self.spec['cuda'].prefix)]
  
      @property
      def install_targets(self):
          if self.version >= Version('2.3.5-5'):
              return ['PREFIX={0}'.format(self.prefix), 'src.install']
          else:
              return ['PREFIX={0}'.format(self.prefix), 'install']
  
subject: Add latest version of NCCL (#10194)