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CMake/Help/variable/CMAKE_CUDA_ARCHITECTURES.rst
Raul Tambre c4ae9384ff CUDA: Initialize CMAKE_CUDA_ARCHITECTURES using $ENV{CUDAARCHS}
NVCC's default architecture may be newer than the one supported by the
machine's GPU.
In such cases it's useful to have an environment variable for initializing
CMAKE_CUDA_ARCHITECTURES to avoid specifying it for every invocation.
2020-11-30 17:57:11 +02:00

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CMAKE_CUDA_ARCHITECTURES
------------------------
.. versionadded:: 3.18
Default value for :prop_tgt:`CUDA_ARCHITECTURES` property of targets.
Initialized by the :envvar:`CUDAARCHS` environment variable if set.
Otherwise as follows depending on :variable:`CMAKE_CUDA_COMPILER_ID <CMAKE_<LANG>_COMPILER_ID>`:
- For ``Clang``: the oldest architecture that works.
- For ``NVIDIA``: the default architecture chosen by the compiler.
See policy :policy:`CMP0104`.
Users are encouraged to override this, as the default varies across compilers
and compiler versions.
This variable is used to initialize the :prop_tgt:`CUDA_ARCHITECTURES` property
on all targets. See the target property for additional information.