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Diffstat (limited to 'lib/spack/docs/build_systems/cudapackage.rst')
| -rw-r--r-- | lib/spack/docs/build_systems/cudapackage.rst | 38 |
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diff --git a/lib/spack/docs/build_systems/cudapackage.rst b/lib/spack/docs/build_systems/cudapackage.rst new file mode 100644 index 0000000000..42ed61e33f --- /dev/null +++ b/lib/spack/docs/build_systems/cudapackage.rst @@ -0,0 +1,38 @@ +.. _cudapackage: + +----------- +CudaPackage +----------- + +Different from other packages, ``CudaPackage`` does not represent a build +system. Instead its goal is to simplify and unify usage of ``CUDA`` in other +packages. + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Provided variants and dependencies +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +``CudaPackage`` provides ``cuda`` variant (default to ``off``) to enable/disable +``CUDA``, and ``cuda_arch`` variant to optionally specify the architecture. +It also declares dependencies on the ``CUDA`` package ``depends_on('cuda@...')`` +based on the architecture as well as specifies conflicts for certain compiler versions. + +^^^^^ +Usage +^^^^^ + +In order to use it, just add another base class to your package, for example: + +.. code-block:: python + + class MyPackage(CMakePackage, CudaPackage): + ... + def cmake_args(self): + spec = self.spec + if '+cuda' in spec: + options.append('-DWITH_CUDA=ON') + cuda_arch = spec.variants['cuda_arch'].value + if cuda_arch is not None: + options.append('-DCUDA_FLAGS=-arch=sm_{0}'.format(cuda_arch[0])) + else: + options.append('-DWITH_CUDA=OFF') |