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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.
Examples
^^^^^^^^
.. code-block:: cmake
cmake_minimum_required(VERSION)
if(NOT DEFINED CMAKE_CUDA_ARCHITECTURES)
set(CMAKE_CUDA_ARCHITECTURES 75)
endif()
project(example LANGUAGES CUDA)
``CMAKE_CUDA_ARCHITECTURES`` will default to ``75`` unless overridden by the user.