openvino/docs/OV_Runtime_UG/supported_plugins/MYRIAD.md

MYRIAD Device

The OpenVINO Runtime MYRIAD plugin has been developed for inference of neural networks on Intel® Neural Compute Stick 2.

Configuring the MYRIAD Plugin

To configure your Intel® Vision Accelerator Design With Intel® Movidius™ on supported operating systems, refer to the installation guide.

Note

: The HDDL and MYRIAD plugins may cause conflicts when used at the same time. To ensure proper operation in such a case, the number of booted devices needs to be limited in the hddl_autoboot.config file. Otherwise, the HDDL plugin will boot all available Intel® Movidius™ Myriad™ X devices.

Supported Configuration Parameters

For information on the VPU common configuration parameters, see the VPU Plugins. When specifying key values as raw strings (when using the Python API), omit the KEY_ prefix.

In addition to common parameters, the MYRIAD plugin accepts the following options:

Parameter Name	Parameter Values	Default	Description
KEY_VPU_MYRIAD_PROTOCOL	empty string/VPU_MYRIAD_USB/VPU_MYRIAD_PCIE	empty string	If set, the plugin will use a device with specific protocol to allocate a network.
KEY_VPU_MYRIAD_FORCE_RESET	YES/NO	NO	Enables force reset of all booted devices when new ExecutableNetwork is created. This is a plugin scope option and must be used with the plugin's SetConfig method only. See Device allocation section for details.
KEY_VPU_FORCE_RESET	YES/NO	NO	Deprecated Use KEY_VPU_MYRIAD_FORCE_RESET instead. Enables force reset of all booted devices when new ExecutableNetwork is created. This is a plugin scope option and must be used with the plugin's SetConfig method only. See Device allocation section for details.

Device allocation  

Each IExecutableNetwork instance tries to allocate new device on InferenceEngine::Core::LoadNetwork, but if all available devices are already allocated it will use the one with the minimal number of uploaded networks. The maximum number of networks a single device can handle depends on device memory capacity and the size of the networks.

If the KEY_VPU_MYRIAD_FORCE_RESET option is set to YES, the plugin will reset all VPU devices in the system.

Single device cannot be shared across multiple processes.

See Also

• Supported Devices
• VPU Plugins
• Intel® Neural Compute Stick 2 Get Started