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-rw-r--r--lib/spack/spack/build_systems/cuda.py88
1 files changed, 88 insertions, 0 deletions
diff --git a/lib/spack/spack/build_systems/cuda.py b/lib/spack/spack/build_systems/cuda.py
new file mode 100644
index 0000000000..874b30f679
--- /dev/null
+++ b/lib/spack/spack/build_systems/cuda.py
@@ -0,0 +1,88 @@
+##############################################################################
+# Copyright (c) 2013-2017, Lawrence Livermore National Security, LLC.
+# Produced at the Lawrence Livermore National Laboratory.
+#
+# This file is part of Spack.
+# Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
+# LLNL-CODE-647188
+#
+# For details, see https://github.com/spack/spack
+# Please also see the NOTICE and LICENSE files for our notice and the LGPL.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License (as
+# published by the Free Software Foundation) version 2.1, February 1999.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
+# conditions of the GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##############################################################################
+from spack.package import Package
+from spack.directives import depends_on, variant, conflicts
+import platform
+
+
+class CudaPackage(Package):
+ """Auxiliary class which contains CUDA variant, dependencies and conflicts
+ and is meant to unify and facilitate its usage.
+ """
+
+ # FIXME: keep cuda and cuda_arch separate to make usage easier untill
+ # Spack has depends_on(cuda, when='cuda_arch!=None') or alike
+ variant('cuda', default=False,
+ description='Build with CUDA')
+ # see http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html#gpu-feature-list
+ # https://developer.nvidia.com/cuda-gpus
+ variant('cuda_arch', default=None,
+ description='CUDA architecture',
+ values=('20', '30', '32', '35', '50', '52', '53', '60', '61',
+ '62', '70'),
+ multi=True)
+
+ # see http://docs.nvidia.com/cuda/cuda-compiler-driver-nvcc/index.html#nvcc-examples
+ # and http://llvm.org/docs/CompileCudaWithLLVM.html#compiling-cuda-code
+ @staticmethod
+ def cuda_flags(arch_list):
+ return [('--generate-code arch=compute_{0},code=sm_{0} '
+ '--generate-code arch=compute_{0},code=compute_{0}').format(s)
+ for s in arch_list]
+
+ depends_on("cuda@7:", when='+cuda')
+
+ # CUDA version vs Architecture
+ depends_on("cuda@8:", when='cuda_arch=60')
+ depends_on("cuda@8:", when='cuda_arch=61')
+ depends_on("cuda@8:", when='cuda_arch=62')
+ depends_on("cuda@9:", when='cuda_arch=70')
+
+ depends_on('cuda@:8.99', when='cuda_arch=20')
+
+ # Compiler conflicts:
+ # https://gist.github.com/ax3l/9489132
+ conflicts('%gcc@5:', when='+cuda ^cuda@:7.5')
+ conflicts('%gcc@6:', when='+cuda ^cuda@:8.99')
+ conflicts('%gcc@7:', when='+cuda ^cuda@:9.99')
+ if (platform.system() != "Darwin"):
+ conflicts('%clang@:3.4,3.7:', when='+cuda ^cuda@7.5')
+ conflicts('%clang@:3.7,4:', when='+cuda ^cuda@8:9')
+ conflicts('%intel@:14,16:', when='+cuda ^cuda@7.5')
+ conflicts('%intel@:14,17:', when='+cuda ^cuda@8.0.44')
+ conflicts('%intel@:14,18:', when='+cuda ^cuda@8.0.61:9')
+
+ # Make sure cuda_arch can not be used without +cuda
+ conflicts('~cuda', when='cuda_arch=20')
+ conflicts('~cuda', when='cuda_arch=30')
+ conflicts('~cuda', when='cuda_arch=32')
+ conflicts('~cuda', when='cuda_arch=35')
+ conflicts('~cuda', when='cuda_arch=50')
+ conflicts('~cuda', when='cuda_arch=52')
+ conflicts('~cuda', when='cuda_arch=53')
+ conflicts('~cuda', when='cuda_arch=60')
+ conflicts('~cuda', when='cuda_arch=61')
+ conflicts('~cuda', when='cuda_arch=62')
+ conflicts('~cuda', when='cuda_arch=70')