Fix device/host call issues in CUDA (when not using relaxed constexpr workaround)

kokkos / mdspan

Reference implementation of mdspan targeting C++23

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Closed nmm0 closed 1 month ago

nmm0 commented 1 month ago

This includes code that Christian wrote and will be included into Kokkos in https://github.com/kokkos/kokkos/pull/7396

This addresses warnings for calling constexpr device code inside of Kokkos with BasicView

nmm0 commented 1 month ago

[x] Move device_support to utility
[x] Make construct_sub_strides use a custom c-array like type instead of std::array
[x] Remove fake-tuple type access
[x] Make std::array constructors for layout_stride non-device