7.55. cudaPointerAttributes Struct Reference

[Data types used by CUDA Runtime]

CUDA pointer attributes

Public Variables

int  device
void * devicePointer
void * hostPointer
enumcudaMemoryType type

Variables

int cudaPointerAttributes::device [inherited]

The device against which the memory was allocated or registered. If the memory type is cudaMemoryTypeDevice then this identifies the device on which the memory referred physically resides. If the memory type is cudaMemoryTypeHostor::cudaMemoryTypeManaged then this identifies the device which was current when the memory was allocated or registered (and if that device is deinitialized then this allocation will vanish with that device's state).

void * cudaPointerAttributes::devicePointer [inherited]

The address which may be dereferenced on the current device to access the memory or NULL if no such address exists.

void * cudaPointerAttributes::hostPointer [inherited]

The address which may be dereferenced on the host to access the memory or NULL if no such address exists.

Note:

CUDA doesn't check if unregistered memory is allocated so this field may contain invalid pointer if an invalid pointer has been passed to CUDA.

enumcudaMemoryTypecudaPointerAttributes::type [inherited]