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docs: mention cuda multi-arch capability (#36321)

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Leopold Talirz 2023-03-22 21:52:53 +01:00 committed by GitHub
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lib/spack/docs/build_systems/cudapackage.rst
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@ -28,11 +28,14 @@ This package provides the following variants:
* **cuda_arch**
This variant supports the optional specification of the architecture.
This variant supports the optional specification of one or multiple architectures.
Valid values are maintained in the ``cuda_arch_values`` property and
are the numeric character equivalent of the compute capability version
(e.g., '10' for version 1.0). Each provided value affects associated
``CUDA`` dependencies and compiler conflicts.
The variant builds both PTX code for the _virtual_ architecture
(e.g. ``compute_10``) and binary code for the _real_ architecture (e.g. ``sm_10``).
GPUs and their compute capability versions are listed at
https://developer.nvidia.com/cuda-gpus .