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CMAKE_CUDA_ARCHITECTURES
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------------------------
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.. versionadded:: 3.18
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Default value for :prop_tgt:`CUDA_ARCHITECTURES` property of targets.
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Initialized by the :envvar:`CUDAARCHS` environment variable if set.
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Otherwise as follows depending on :variable:`CMAKE_CUDA_COMPILER_ID <CMAKE_<LANG>_COMPILER_ID>`:
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- For ``Clang``: the oldest architecture that works.
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- For ``NVIDIA``: the default architecture chosen by the compiler.
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See policy :policy:`CMP0104`.
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Users are encouraged to override this, as the default varies across compilers
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and compiler versions.
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This variable is used to initialize the :prop_tgt:`CUDA_ARCHITECTURES` property
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on all targets. See the target property for additional information.
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Examples
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^^^^^^^^
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.. code-block:: cmake
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cmake_minimum_required(VERSION)
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if(NOT DEFINED CMAKE_CUDA_ARCHITECTURES)
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set(CMAKE_CUDA_ARCHITECTURES 75)
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endif()
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project(example LANGUAGES CUDA)
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``CMAKE_CUDA_ARCHITECTURES`` will default to ``75`` unless overridden by the user.
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