cuda::experimental::device_memory_resource#

class device_memory_resource : public cuda::experimental::__memory_resource_base#

Stream ordered memory resource#

device_memory_resource uses cudaMallocFromPoolAsync / cudaFreeAsync for allocation/deallocation. A device_memory_resource is a thin wrapper around a c cudaMemPool_t.

Warning

device_memory_resource does not own the pool and it is the responsibility of the user to ensure that the lifetime of the pool exceeds the lifetime of the device_memory_resource.

Public Types

using default_queries = properties_list<device_accessible>#

Public Functions

inline explicit device_memory_resource(::cuda::device_ref __device)#

Constructs a device_memory_resource using the default cudaMemPool_t of a given device.

Throws:

cuda_error – if retrieving the default cudaMemPool_t fails.

device_memory_resource(int) = delete#
device_memory_resource(::cuda::std::nullptr_t) = delete#
inline explicit device_memory_resource(
::cudaMemPool_t __pool,
) noexcept#

Constructs the device_memory_resource from a cudaMemPool_t.

Parameters:

__pool – The cudaMemPool_t used to allocate memory.

inline explicit device_memory_resource(
device_memory_pool &__pool,
) noexcept#

Constructs the device_memory_resource from a device_memory_pool by calling get().

Parameters:

__pool – The device_memory_pool used to allocate memory.

inline friend constexpr void get_property(
device_memory_resource const&,
device_accessible,
) noexcept#

Enables the device_accessible property for device_memory_resource.