openvino/samples/python/hello_query_device/README.md

Hello Query Device Python* Sample

This sample demonstrates how to show OpenVINO™ Runtime devices and print their metrics with default configuration values, using the Query Device API feature. Source code for this application is also available on GitHub.

The following Python API is used in the application:

Feature	API	Description
Basic	[openvino.runtime.Core]	Common API
Query Device	[openvino.runtime.Core.available_devices], [openvino.runtime.Core.get_metric], [openvino.runtime.Core.get_config]	Get device properties

Options	Values
Supported devices	All
Other language realization	C++

How It Works

The sample queries all available OpenVINO™ Runtime devices and prints their supported metrics and plugin configuration parameters.

Running

The sample has no command-line parameters. To see the report, run the following command:

python hello_query_device.py

Sample Output

The application prints all available devices with their supported metrics and default values for configuration parameters. For example:

[ INFO ] Available devices:
[ INFO ] CPU :
[ INFO ]        SUPPORTED_METRICS:
[ INFO ]                AVAILABLE_DEVICES:
[ INFO ]                FULL_DEVICE_NAME: Intel(R) Core(TM) i5-8350U CPU @ 1.70GHz
[ INFO ]                OPTIMIZATION_CAPABILITIES: FP32, FP16, INT8, BIN
[ INFO ]                RANGE_FOR_ASYNC_INFER_REQUESTS: 1, 1, 1
[ INFO ]                RANGE_FOR_STREAMS: 1, 8
[ INFO ]                IMPORT_EXPORT_SUPPORT: True
[ INFO ]
[ INFO ]        SUPPORTED_CONFIG_KEYS (default values):
[ INFO ]                CACHE_DIR:
[ INFO ]                CPU_BIND_THREAD: NO
[ INFO ]                CPU_THREADS_NUM: 0
[ INFO ]                CPU_THROUGHPUT_STREAMS: 1
[ INFO ]                DUMP_EXEC_GRAPH_AS_DOT:
[ INFO ]                DYN_BATCH_ENABLED: NO
[ INFO ]                DYN_BATCH_LIMIT: 0
[ INFO ]                ENFORCE_BF16: NO
[ INFO ]                EXCLUSIVE_ASYNC_REQUESTS: NO
[ INFO ]                PERFORMANCE_HINT:
[ INFO ]                PERFORMANCE_HINT_NUM_REQUESTS: 0
[ INFO ]                PERF_COUNT: NO
[ INFO ]
[ INFO ] GNA :
[ INFO ]        SUPPORTED_METRICS:
[ INFO ]                AVAILABLE_DEVICES: GNA_SW
[ INFO ]                OPTIMAL_NUMBER_OF_INFER_REQUESTS: 1
[ INFO ]                FULL_DEVICE_NAME: GNA_SW
[ INFO ]                GNA_LIBRARY_FULL_VERSION: 3.0.0.1455
[ INFO ]                IMPORT_EXPORT_SUPPORT: True
[ INFO ]
[ INFO ]        SUPPORTED_CONFIG_KEYS (default values):
[ INFO ]                EXCLUSIVE_ASYNC_REQUESTS: NO
[ INFO ]                GNA_COMPACT_MODE: YES
[ INFO ]                GNA_COMPILE_TARGET:
[ INFO ]                GNA_DEVICE_MODE: GNA_SW_EXACT
[ INFO ]                GNA_EXEC_TARGET:
[ INFO ]                GNA_FIRMWARE_MODEL_IMAGE:
[ INFO ]                GNA_FIRMWARE_MODEL_IMAGE_GENERATION:
[ INFO ]                GNA_LIB_N_THREADS: 1
[ INFO ]                GNA_PRECISION: I16
[ INFO ]                GNA_PWL_MAX_ERROR_PERCENT: 1.000000
[ INFO ]                GNA_PWL_UNIFORM_DESIGN: NO
[ INFO ]                GNA_SCALE_FACTOR: 1.000000
[ INFO ]                GNA_SCALE_FACTOR_0: 1.000000
[ INFO ]                LOG_LEVEL: LOG_NONE
[ INFO ]                PERF_COUNT: NO
[ INFO ]                SINGLE_THREAD: YES

See Also

• Using OpenVINO™ Toolkit Samples