unique_region.hpp File Reference

A smart pointer for CUDA device- and host-side memory, similar to the standard library's ::std::unique_ptr. More...

#include "memory.hpp"
#include <cassert>

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Classes
class	cuda::memory::unique_region< Deleter >
	A class for holding a region_t of memory owned "uniquely" by its creator - similar to how ::std::unique_ptr holds a uniquely- owned pointer. More...

Namespaces
	cuda
	Definitions and functionality wrapping CUDA APIs.
	cuda::memory
	Representation, allocation and manipulation of CUDA-related memory, of different.
	cuda::memory::device
	CUDA-Device-global memory on a single device (not accessible from the host)
	cuda::memory::host
	Host-side (= system) memory which is "pinned", i.e.
	cuda::memory::managed
	Paged memory accessible in both device-side and host-side code by triggering transfers of pages between physical system memory and physical device memory.

Typedefs
using	cuda::memory::device::unique_region = memory::unique_region< detail_::deleter >
	A unique region of device-global memory.
using	cuda::memory::host::unique_region = memory::unique_region< detail_::deleter >
	A unique region of pinned host memory.
using	cuda::memory::managed::unique_region = memory::unique_region< detail_::deleter >
	A unique region of managed memory, see cuda::memory::managed.

Functions
unique_region	cuda::memory::device::make_unique_region (const context_t &context, size_t num_bytes)
	Allocate a region in device-global memory. More...
unique_region	cuda::memory::device::make_unique_region (const device_t &device, size_t num_elements)
	Create a variant of ::std::unique_pointer for an array in device-global memory. More...
unique_region	cuda::memory::device::make_unique_region (size_t num_elements)
	Create a variant of ::std::unique_pointer for an array in device-global memory on the current device. More...
device::unique_region	cuda::memory::make_unique_region (const context_t &context, size_t num_elements)
	See device::make_unique_region(const context_t& context, size_t num_elements)
device::unique_region	cuda::memory::make_unique_region (const device_t &device, size_t num_elements)
	See device::make_unique_region(const device_t& device, size_t num_elements)
unique_region	cuda::memory::host::make_unique_region (size_t num_bytes)
	Allocate a physical-address-pinned region of system memory. More...
unique_region	cuda::memory::managed::make_unique_region (const context_t &context, size_t num_bytes, initial_visibility_t initial_visibility)
	Allocate a region of managed memory, accessible both from CUDA devices and from the CPU. More...
unique_region	cuda::memory::managed::make_unique_region (const device_t &device, size_t num_bytes, initial_visibility_t initial_visibility)
	Allocate a region of managed memory, accessible both from CUDA devices and from the CPU. More...
unique_region	cuda::memory::managed::make_unique_region (size_t num_bytes)
	Allocate a region of managed memory, accessible both from CUDA devices and from the CPU. More...

Detailed Description

A smart pointer for CUDA device- and host-side memory, similar to the standard library's ::std::unique_ptr.

Note

Unique pointers, like any (wrapped) memory allocations, do not extend the lifetime of contexts (primary or otherwise). In particular, they do not increase primary context refcounts.