DeviceStreamMap Class Reference

map from a device ID to an associated cuda stream. Useful for multi-GPU applications. More...

#include <nanovdb/cuda/DeviceStreamMap.h>

Public Types
enum	DeviceType { Any = 0 , PeerToPeer = 1 , Unified = 3 }

Public Member Functions
	DeviceStreamMap (DeviceType t=DeviceType::Unified, std::vector< int > exclude={}, int verbose=0)
	Initiates a map between CUDA device IDs and corresponding streams that satisfy certain constraints. All devices should be able to access memory on all the other devices!
	~DeviceStreamMap ()
	Destructor.
size_t	getMinPageSize () const
	returns the minimum page size of all the devices in this map
void	printDevInfo (std::FILE *file=stdout) const
	Print information about all the devices included in this map.
int	deviceCount () const
	Returns the number of device associated with this map.

Detailed Description

map from a device ID to an associated cuda stream. Useful for multi-GPU applications.

Member Enumeration Documentation

DeviceType

enum DeviceType

Enumerator
Any
PeerToPeer
Unified

Constructor & Destructor Documentation

DeviceStreamMap()

DeviceStreamMap	(	DeviceType	t = DeviceType::Unified,
		std::vector< int >	exclude = {},
		int	verbose = 0 )

Initiates a map between CUDA device IDs and corresponding streams that satisfy certain constraints. All devices should be able to access memory on all the other devices!

Parameters

t	Type of device to include in map. Any means all available devices, PeerToPeer means only devices that access all another devices are included, and Unified means all devices support unified memory, concurrent access, and can be access by all other devices.
exclude	optional list of device IDs to exclude from the map
verbose	0 means quiet, 1 means print if a device is ignores and 2 means print is a device is included

~DeviceStreamMap()

~DeviceStreamMap

(

)

Destructor.

Member Function Documentation

deviceCount()

int deviceCount ( ) const

inline

Returns the number of device associated with this map.

getMinPageSize()

size_t getMinPageSize ( ) const

inline

returns the minimum page size of all the devices in this map

printDevInfo()

void printDevInfo ( std::FILE * file = stdout ) const

inline

Print information about all the devices included in this map.