eea786f4e8
- remove the old LGPL license headers from all files in Spack - add SPDX headers to all files - core and most packages are (Apache-2.0 OR MIT) - a very small number of remaining packages are LGPL-2.1-only
44 lines
1.4 KiB
ReStructuredText
44 lines
1.4 KiB
ReStructuredText
.. Copyright 2013-2018 Lawrence Livermore National Security, LLC and other
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Spack Project Developers. See the top-level COPYRIGHT file for details.
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SPDX-License-Identifier: (Apache-2.0 OR MIT)
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.. _cudapackage:
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-----------
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CudaPackage
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-----------
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Different from other packages, ``CudaPackage`` does not represent a build
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system. Instead its goal is to simplify and unify usage of ``CUDA`` in other
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packages.
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Provided variants and dependencies
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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``CudaPackage`` provides ``cuda`` variant (default to ``off``) to enable/disable
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``CUDA``, and ``cuda_arch`` variant to optionally specify the architecture.
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It also declares dependencies on the ``CUDA`` package ``depends_on('cuda@...')``
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based on the architecture as well as specifies conflicts for certain compiler versions.
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^^^^^
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Usage
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^^^^^
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In order to use it, just add another base class to your package, for example:
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.. code-block:: python
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class MyPackage(CMakePackage, CudaPackage):
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...
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def cmake_args(self):
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spec = self.spec
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if '+cuda' in spec:
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options.append('-DWITH_CUDA=ON')
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cuda_arch = spec.variants['cuda_arch'].value
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if cuda_arch is not None:
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options.append('-DCUDA_FLAGS=-arch=sm_{0}'.format(cuda_arch[0]))
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else:
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options.append('-DWITH_CUDA=OFF')
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