cuda::experimental::device_ref
Defined in /home/runner/work/cccl/cccl/cudax/include/cuda/experimental/__device/device_ref.cuh
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class device_ref
A non-owning representation of a CUDA device.
Subclassed by cuda::experimental::device
Public Functions
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inline constexpr device_ref(int __id) noexcept
Create a
device_ref
object from a native device ordinal.
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inline constexpr int get() const noexcept
Retrieve the native ordinal of the
device_ref
- Returns
int The native device ordinal held by the
device_ref
object
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inline constexpr bool operator==(device_ref __lhs, device_ref __rhs) noexcept
Compares two
device_ref
s for equality.Note
Allows comparison with
int
due to implicit conversion todevice_ref
.- Parameters
__lhs – The first
device_ref
to compare__rhs – The second
device_ref
to compare
- Returns
true if
lhs
andrhs
refer to the same device ordinal
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template<typename _Attr>
inline auto attr(_Attr __attr) const Retrieve the specified attribute for the device.
See also
device::attrs
- Parameters
__attr – The attribute to query. See
device::attrs
for the available attributes.- Throws
cuda_error – if the attribute query fails
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template<::cudaDeviceAttr _Attr>
inline auto attr() const This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
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inline const arch_traits_t &arch_traits() const
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inline constexpr device_ref(int __id) noexcept