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authorAdam J. Stewart <ajstewart426@gmail.com>2022-01-17 02:40:38 -0600
committerGitHub <noreply@github.com>2022-01-17 09:40:38 +0100
commit5c4a250bf9ce2197b01b49cd73a0f9b6af1eb92d (patch)
tree14826b33ad5958883b331d0c083772f2821c749c
parent5e595586a77dd7a8de25169dfc6cd45cb4cd3a5d (diff)
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NCCL: specify cuda_arch (#28433)
-rw-r--r--var/spack/repos/builtin/packages/nccl/package.py11
1 files changed, 10 insertions, 1 deletions
diff --git a/var/spack/repos/builtin/packages/nccl/package.py b/var/spack/repos/builtin/packages/nccl/package.py
index d7498b8893..c784fd0127 100644
--- a/var/spack/repos/builtin/packages/nccl/package.py
+++ b/var/spack/repos/builtin/packages/nccl/package.py
@@ -45,10 +45,19 @@ class Nccl(MakefilePackage, CudaPackage):
patch('so_reuseport.patch', when='@2.3.7-1:2.4.8-1')
conflicts('~cuda', msg='NCCL requires CUDA')
+ conflicts('cuda_arch=none',
+ msg='Must specify CUDA compute capabilities of your GPU, see '
+ 'https://developer.nvidia.com/cuda-gpus')
@property
def build_targets(self):
- return ['CUDA_HOME={0}'.format(self.spec['cuda'].prefix)]
+ cuda_arch = self.spec.variants['cuda_arch'].value
+ cuda_gencode = ' '.join(self.cuda_flags(cuda_arch))
+
+ return [
+ 'CUDA_HOME={0}'.format(self.spec['cuda'].prefix),
+ 'NVCC_GENCODE={0}'.format(cuda_gencode),
+ ]
@property
def install_targets(self):