cuda::experimental::pinned_memory_resource

Defined in include/cuda/experimental/__memory_resource/pinned_memory_resource.cuh

class pinned_memory_resource : public cuda::experimental::__memory_resource_base

Stream ordered memory resource

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

Warning

pinned_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 pinned_memory_resource.

Public Functions

inline pinned_memory_resource()

Default constructs the pinned_memory_resource using the default cudaMemPool_t for host pinned memory.

Throws

cuda_error – if retrieving the default cudaMemPool_t fails.

inline explicit pinned_memory_resource(::cudaMemPool_t __pool) noexcept

Constructs the pinned_memory_resource from a cudaMemPool_t.

Parameters

__pool – The cudaMemPool_t used to allocate memory.

inline explicit pinned_memory_resource(pinned_memory_pool &__pool) noexcept

Constructs the pinned_memory_resource from a pinned_memory_pool by calling get().

Parameters

__pool – The pinned_memory_pool used to allocate memory.