Functions
magma_int_t	magma_getdevice_arch ()
	Returns CUDA architecture capability for the current device.

void	magma_getdevices (magma_device_t devices, magma_int_t size, magma_int_t num_dev)
	Fills in devices array with the available devices.

void	magma_getdevice (magma_device_t *device)
	Get the current device.

void	magma_setdevice (magma_device_t device)
	Set the current device.

magma_int_t	magma_getdevice_multiprocessor_count ()
	Returns the multiprocessor count for the current device.

magma_int_t	magma_getdevice_num_threads_block ()
	Returns the maximum number of threads per block for the current device.

magma_int_t	magma_getdevice_num_threads_multiprocessor ()
	Returns the maximum number of threads per multiprocessor for the current device.

size_t	magma_getdevice_shmem_block ()
	Returns the maximum shared memory per block (in bytes) for the current device.

size_t	magma_getdevice_shmem_block_optin ()
	Returns the maximum shared memory per block (in bytes) with a special opt-in for the current device.

size_t	magma_getdevice_shmem_multiprocessor ()
	Returns the maximum shared memory multiprocessor (in bytes) for the current device.

void	magma_device_sync ()

Detailed Description

Function Documentation

◆ magma_getdevice_arch()

magma_int_t magma_getdevice_arch ( )

Returns CUDA architecture capability for the current device.

This requires magma_init() to be called first to cache the information. Version is an integer xyz, where x is major, y is minor, and z is micro, the same as CUDA_ARCH. Thus for architecture 1.3.0 it returns 130.

Returns: CUDA_ARCH for the current device.

◆ magma_getdevices()

void magma_getdevices	(	magma_device_t *	devices,
		magma_int_t	size,
		magma_int_t *	num_dev )

Fills in devices array with the available devices.

(This makes much more sense in OpenCL than in CUDA.)

Parameters

[out]	devices	Array of dimension (size). On output, devices[0, ..., num_dev-1] contain device IDs. Entries >= num_dev are not touched.
[in]	size	Dimension of the array devices.
[out]	num_dev	Number of devices, limited to size.

◆ magma_getdevice()

void magma_getdevice ( magma_device_t * device )

Get the current device.

Parameters

[out] device On output, device ID of the current device. Each thread has its own current device.

◆ magma_setdevice()

void magma_setdevice ( magma_device_t device )

Set the current device.

Parameters

[in] device Device ID to set as the current device. Each thread has its own current device.