open_compute_deviceT_open_compute_deviceOpenComputeDeviceOpenComputeDevice (Operator)

Name

open_compute_deviceT_open_compute_deviceOpenComputeDeviceOpenComputeDevice — Open a compute device.

Signature

open_compute_device( : : DeviceIdentifier : DeviceHandle)

Herror T_open_compute_device(const Htuple DeviceIdentifier, Htuple* DeviceHandle)

void OpenComputeDevice(const HTuple& DeviceIdentifier, HTuple* DeviceHandle)

void HComputeDevice::HComputeDevice(Hlong DeviceIdentifier)

void HComputeDevice::OpenComputeDevice(Hlong DeviceIdentifier)

static void HOperatorSet.OpenComputeDevice(HTuple deviceIdentifier, out HTuple deviceHandle)

public HComputeDevice(int deviceIdentifier)

void HComputeDevice.OpenComputeDevice(int deviceIdentifier)

Description

open_compute_deviceopen_compute_deviceOpenComputeDeviceOpenComputeDeviceOpenComputeDevice opens the compute device referenced by DeviceIdentifierDeviceIdentifierDeviceIdentifierDeviceIdentifierdeviceIdentifier and returns DeviceHandleDeviceHandleDeviceHandleDeviceHandledeviceHandle. Enable computation on DeviceHandleDeviceHandleDeviceHandleDeviceHandledeviceHandle via activate_compute_deviceactivate_compute_deviceActivateComputeDeviceActivateComputeDeviceActivateComputeDevice.

DeviceIdentifierDeviceIdentifierDeviceIdentifierDeviceIdentifierdeviceIdentifier must be obtained by query_available_compute_devicesquery_available_compute_devicesQueryAvailableComputeDevicesQueryAvailableComputeDevicesQueryAvailableComputeDevices.

Execution Information

This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.

Parameters

DeviceIdentifierDeviceIdentifierDeviceIdentifierDeviceIdentifierdeviceIdentifier (input_control)  integer HTupleHTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Compute device Identifier.

DeviceHandleDeviceHandleDeviceHandleDeviceHandledeviceHandle (output_control)  compute_device HComputeDevice, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Compute device handle.

Result

open_compute_deviceopen_compute_deviceOpenComputeDeviceOpenComputeDeviceOpenComputeDevice returns the value 2 (H_MSG_TRUE) if DeviceIdentifierDeviceIdentifierDeviceIdentifierDeviceIdentifierdeviceIdentifier is valid. Otherwise an exception will be raised.

Possible Predecessors

query_available_compute_devicesquery_available_compute_devicesQueryAvailableComputeDevicesQueryAvailableComputeDevicesQueryAvailableComputeDevices

Possible Successors

activate_compute_deviceactivate_compute_deviceActivateComputeDeviceActivateComputeDeviceActivateComputeDevice, init_compute_deviceinit_compute_deviceInitComputeDeviceInitComputeDeviceInitComputeDevice

Module

Foundation