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# Copyright 2013-2021 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 Embree(CMakePackage):
"""Intel Embree High Performance Ray Tracing Kernels"""
homepage = "https://embree.org"
url = "https://github.com/embree/embree/archive/v3.7.0.tar.gz"
maintainers = ['aumuell']
version('3.13.0', sha256='4d86a69508a7e2eb8710d571096ad024b5174834b84454a8020d3a910af46f4f')
version('3.12.1', sha256='0c9e760b06e178197dd29c9a54f08ff7b184b0487b5ba8b8be058e219e23336e')
version('3.12.0', sha256='f3646977c45a9ece1fb0cfe107567adcc645b1c77c27b36572d0aa98b888190c')
version('3.11.0', sha256='2ccc365c00af4389aecc928135270aba7488e761c09d7ebbf1bf3e62731b147d')
version('3.10.0', sha256='f1f7237360165fb8859bf71ee5dd8caec1fe02d4d2f49e89c11d250afa067aff')
version('3.9.0', sha256='53855e2ceb639289b20448ae9deab991151aa5f0bc7f9cc02f2af4dd6199d5d1')
version('3.8.0', sha256='40cbc90640f63c318e109365d29aea00003e4bd14aaba8bb654fc1010ea5753a')
version('3.7.0', sha256='2b6300ebe30bb3d2c6e5f23112b4e21a25a384a49c5e3c35440aa6f3c8d9fe84')
# default to Release, as RelWithDebInfo creates a lot of overhead
variant('build_type', default='Release',
description='CMake build type',
values=('Debug', 'Release', 'RelWithDebInfo', 'MinSizeRel'))
variant('ispc', default=True, description='Enable ISPC support')
depends_on('ispc', when='+ispc', type='build')
depends_on('tbb')
def cmake_args(self):
spec = self.spec
args = [
'-DBUILD_TESTING=OFF',
'-DEMBREE_TUTORIALS=OFF',
'-DEMBREE_IGNORE_CMAKE_CXX_FLAGS=ON',
self.define_from_variant('EMBREE_ISPC_SUPPORT', 'ispc'),
# code selection and defines controlling namespace names are based on
# defines controlled by compiler flags, so disable ISAs below compiler
# flags chosen by spack
self.define('EMBREE_ISA_SSE2', 'sse4_2' not in spec.target),
self.define('EMBREE_ISA_SSE42', 'avx' not in spec.target),
self.define('EMBREE_ISA_AVX', 'avx2' not in spec.target),
self.define('EMBREE_ISA_AVX2', 'avx512' not in spec.target),
self.define('EMBREE_ISA_AVX512SKX', True),
]
if spec.satisfies('%gcc@:7'):
# remove unsupported -mprefer-vector-width=256, otherwise copied
# from common/cmake/gnu.cmake
args.append('-DFLAGS_AVX512SKX=-mavx512f -mavx512dq -mavx512cd'
' -mavx512bw -mavx512vl -mf16c -mavx2 -mfma -mlzcnt'
' -mbmi -mbmi2')
return args
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