Initalization and Information

Collaboration diagram for Initalization and Information:

Classes
class	cv::cuda::DeviceInfo
	Class providing functionality for querying the specified GPU properties. More...
class	cv::cuda::TargetArchs
	Class providing a set of static methods to check what NVIDIA* card architecture the CUDA module was built for. More...

Enumerations
enum	cv::cuda::FeatureSet {   cv::cuda::FEATURE_SET_COMPUTE_10 = 10,   cv::cuda::FEATURE_SET_COMPUTE_11 = 11,   cv::cuda::FEATURE_SET_COMPUTE_12 = 12,   cv::cuda::FEATURE_SET_COMPUTE_13 = 13,   cv::cuda::FEATURE_SET_COMPUTE_20 = 20,   cv::cuda::FEATURE_SET_COMPUTE_21 = 21,   cv::cuda::FEATURE_SET_COMPUTE_30 = 30,   cv::cuda::FEATURE_SET_COMPUTE_32 = 32,   cv::cuda::FEATURE_SET_COMPUTE_35 = 35,   cv::cuda::FEATURE_SET_COMPUTE_50 = 50,   cv::cuda::GLOBAL_ATOMICS = FEATURE_SET_COMPUTE_11,   cv::cuda::SHARED_ATOMICS = FEATURE_SET_COMPUTE_12,   cv::cuda::NATIVE_DOUBLE = FEATURE_SET_COMPUTE_13,   cv::cuda::WARP_SHUFFLE_FUNCTIONS = FEATURE_SET_COMPUTE_30,   cv::cuda::DYNAMIC_PARALLELISM = FEATURE_SET_COMPUTE_35 }
	Enumeration providing CUDA computing features. More...

Functions
void	cv::cuda::convertFp16 (InputArray _src, OutputArray _dst, Stream &stream=Stream::Null())
	Converts an array to half precision floating number. More...
bool	cv::cuda::deviceSupports (FeatureSet feature_set)
	checks whether current device supports the given feature More...
int	cv::cuda::getCudaEnabledDeviceCount ()
	Returns the number of installed CUDA-enabled devices. More...
int	cv::cuda::getDevice ()
	Returns the current device index set by cuda::setDevice or initialized by default. More...
void	cv::cuda::printCudaDeviceInfo (int device)
void	cv::cuda::printShortCudaDeviceInfo (int device)
void	cv::cuda::resetDevice ()
	Explicitly destroys and cleans up all resources associated with the current device in the current process. More...
void	cv::cuda::setDevice (int device)
	Sets a device and initializes it for the current thread. More...

Detailed Description

Enumeration Type Documentation

enum cv::cuda::FeatureSet

#include <core/include/opencv2/core/cuda.hpp>

Enumeration providing CUDA computing features.

Enumerator
FEATURE_SET_COMPUTE_10
FEATURE_SET_COMPUTE_11
FEATURE_SET_COMPUTE_12
FEATURE_SET_COMPUTE_13
FEATURE_SET_COMPUTE_20
FEATURE_SET_COMPUTE_21
FEATURE_SET_COMPUTE_30
FEATURE_SET_COMPUTE_32
FEATURE_SET_COMPUTE_35
FEATURE_SET_COMPUTE_50
GLOBAL_ATOMICS
SHARED_ATOMICS
NATIVE_DOUBLE
WARP_SHUFFLE_FUNCTIONS
DYNAMIC_PARALLELISM

Function Documentation

void cv::cuda::convertFp16	(	InputArray	_src,
		OutputArray	_dst,
		Stream &	stream = Stream::Null()
	)

#include <core/include/opencv2/core/cuda.hpp>

Converts an array to half precision floating number.

Parameters

_src	input array.
_dst	output array.
stream	Stream for the asynchronous version.

See also

convertFp16

bool cv::cuda::deviceSupports

(

FeatureSet

feature_set

)

#include <core/include/opencv2/core/cuda.hpp>

checks whether current device supports the given feature

Referenced by cv::cudev::gridHistogram_(), and cv::cudev::Texture< T >::Texture().

Here is the caller graph for this function:

int cv::cuda::getCudaEnabledDeviceCount

(

)

#include <core/include/opencv2/core/cuda.hpp>

Returns the number of installed CUDA-enabled devices.

Use this function before any other CUDA functions calls. If OpenCV is compiled without CUDA support, this function returns 0.

int cv::cuda::getDevice

(

)

#include <core/include/opencv2/core/cuda.hpp>

Returns the current device index set by cuda::setDevice or initialized by default.

void cv::cuda::printCudaDeviceInfo

(

int

device

)

#include <core/include/opencv2/core/cuda.hpp>

void cv::cuda::printShortCudaDeviceInfo

(

int

device

)

#include <core/include/opencv2/core/cuda.hpp>

void cv::cuda::resetDevice

(

)

#include <core/include/opencv2/core/cuda.hpp>

Explicitly destroys and cleans up all resources associated with the current device in the current process.

Any subsequent API call to this device will reinitialize the device.

void cv::cuda::setDevice

(

int

device

)

#include <core/include/opencv2/core/cuda.hpp>

Sets a device and initializes it for the current thread.

Parameters

device

System index of a CUDA device starting with 0.

If the call of this function is omitted, a default device is initialized at the fist CUDA usage.