CudaMirroredBuffer

#include <sbio/storage/cuda_device.hh>

struct CudaMirroredBuffer

Defined in src/lib/sbio/storage/cuda_device.hh:74

A GPU device buffer with a pinner replica on the host.

This buffer is intended to be used for staged IO. [ptr()](#ptr-1) gives access to the “real” buffer livingin device memory. IO can write to [host_ptr()](#host_ptr) which is the replica on the host, however.

Public Methods

Return	Name	Description
`void *`	`ptr` `const` `inline`
`std::size_t`	`size` `const` `inline`
`void`	`set_memory` `inline`
`void *`	`host_ptr` `const` `inline`	A pinned replica of device memory buffer on the host.
`void`	`set_host_memory` `inline`
`std::size_t`	`host_stale` `const` `inline`	The number of bytes from start of buffer that need to be copied to host.
`void`	`set_host_stale` `inline`	Indicate how many bytes need to be copied into the host replica.

ptr

const inline

inline void * ptr() const

Defined in src/lib/sbio/storage/cuda_device.hh:77

size

const inline

inline std::size_t size() const

Defined in src/lib/sbio/storage/cuda_device.hh:79

set_memory

inline

inline void set_memory(void * ptr, std::size_t size)

Defined in src/lib/sbio/storage/cuda_device.hh:81

host_ptr

const inline

inline void * host_ptr() const

Defined in src/lib/sbio/storage/cuda_device.hh:89

A pinned replica of device memory buffer on the host.

set_host_memory

inline

inline void set_host_memory(void * host_ptr)

Defined in src/lib/sbio/storage/cuda_device.hh:91

host_stale

const inline

inline std::size_t host_stale() const

Defined in src/lib/sbio/storage/cuda_device.hh:100

The number of bytes from start of buffer that need to be copied to host.

When the data is written to the GPU buffer directly, the host-side replica should be marked as stale by indicating the number of new bytes to copy over.

set_host_stale

inline

inline void set_host_stale(std::size_t nbytes)

Defined in src/lib/sbio/storage/cuda_device.hh:109

Indicate how many bytes need to be copied into the host replica.

When the data is written to the GPU buffer directly, the host-side replica should be marked as stale by indicating the number of new bytes to copy over.

Public Static Methods

Return	Name	Description
constexpr `MemorySpace`	`memory_space` `static` `inline` `constexpr`

memory_space

static inline constexpr

constexpr static inline constexpr MemorySpace memory_space()

Defined in src/lib/sbio/storage/cuda_device.hh:75

Private Attributes

Return	Name	Description
`void *`	`m_ptr`
`void *`	`m_host_ptr`
`std::size_t`	`m_size`
`std::size_t`	`m_host_stale`

m_ptr

void * m_ptr { nullptr }

Defined in src/lib/sbio/storage/cuda_device.hh:112

m_host_ptr

void * m_host_ptr { nullptr }

Defined in src/lib/sbio/storage/cuda_device.hh:113

m_size

std::size_t m_size { 0 }

Defined in src/lib/sbio/storage/cuda_device.hh:114

m_host_stale

std::size_t m_host_stale { 0 }

Defined in src/lib/sbio/storage/cuda_device.hh:115