Hello Query Device Sample#
This sample demonstrates how to show OpenVINO™ Runtime devices and prints their metrics and default configuration values using Query Device API feature. To build the sample, use instructions available at Build the Sample Applications section in “Get Started with Samples” guide.
How It Works#
The sample queries all available OpenVINO™ Runtime devices and prints their supported metrics and plugin configuration parameters.
#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright (C) 2018-2024 Intel Corporation
# SPDX-License-Identifier: Apache-2.0
import logging as log
import sys
import openvino as ov
def param_to_string(parameters) -> str:
"""Convert a list / tuple of parameters returned from OV to a string."""
if isinstance(parameters, (list, tuple)):
return ', '.join([str(x) for x in parameters])
else:
return str(parameters)
def main():
log.basicConfig(format='[ %(levelname)s ] %(message)s', level=log.INFO, stream=sys.stdout)
# --------------------------- Step 1. Initialize OpenVINO Runtime Core --------------------------------------------
core = ov.Core()
# --------------------------- Step 2. Get metrics of available devices --------------------------------------------
log.info('Available devices:')
for device in core.available_devices:
log.info(f'{device} :')
log.info('\tSUPPORTED_PROPERTIES:')
for property_key in core.get_property(device, 'SUPPORTED_PROPERTIES'):
if property_key not in ('SUPPORTED_PROPERTIES'):
try:
property_val = core.get_property(device, property_key)
except TypeError:
property_val = 'UNSUPPORTED TYPE'
log.info(f'\t\t{property_key}: {param_to_string(property_val)}')
log.info('')
# -----------------------------------------------------------------------------------------------------------------
return 0
if __name__ == '__main__':
sys.exit(main())
// Copyright (C) 2018-2024 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//
#include <cstdlib>
#include <iomanip>
#include <memory>
#include <set>
#include <string>
#include <tuple>
#include <vector>
// clang-format off
#include "openvino/openvino.hpp"
#include "samples/common.hpp"
#include "samples/slog.hpp"
// clang-format on
/**
* @brief Print OV Parameters
* @param reference on OV Parameter
* @return void
*/
void print_any_value(const ov::Any& value) {
if (value.empty()) {
slog::info << "EMPTY VALUE" << slog::endl;
} else {
std::string stringValue = value.as<std::string>();
slog::info << (stringValue.empty() ? "\"\"" : stringValue) << slog::endl;
}
}
int main(int argc, char* argv[]) {
try {
// -------- Get OpenVINO runtime version --------
slog::info << ov::get_openvino_version() << slog::endl;
// -------- Parsing and validation of input arguments --------
if (argc != 1) {
std::cout << "Usage : " << argv[0] << std::endl;
return EXIT_FAILURE;
}
// -------- Step 1. Initialize OpenVINO Runtime Core --------
ov::Core core;
// -------- Step 2. Get list of available devices --------
std::vector<std::string> availableDevices = core.get_available_devices();
// -------- Step 3. Query and print supported metrics and config keys --------
slog::info << "Available devices: " << slog::endl;
for (auto&& device : availableDevices) {
slog::info << device << slog::endl;
// Query supported properties and print all of them
slog::info << "\tSUPPORTED_PROPERTIES: " << slog::endl;
auto supported_properties = core.get_property(device, ov::supported_properties);
for (auto&& property : supported_properties) {
if (property != ov::supported_properties.name()) {
slog::info << "\t\t" << (property.is_mutable() ? "Mutable: " : "Immutable: ") << property << " : "
<< slog::flush;
print_any_value(core.get_property(device, property));
}
}
slog::info << slog::endl;
}
} catch (const std::exception& ex) {
std::cerr << std::endl << "Exception occurred: " << ex.what() << std::endl << std::flush;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
Running#
The sample has no command-line parameters. To see the report, run the following command:
python hello_query_device.py
hello_query_device
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_PROPERTIES:
[ 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 ] CACHE_DIR:
[ INFO ] ENABLE_CPU_PINNING: NO
[ INFO ] INFERENCE_NUM_THREADS: 0
[ INFO ] NUM_STREAMS: 1
[ INFO ] DUMP_EXEC_GRAPH_AS_DOT:
[ INFO ] INFERENCE_PRECISION_HINT: f32
[ INFO ] EXCLUSIVE_ASYNC_REQUESTS: NO
[ INFO ] PERFORMANCE_HINT:
[ INFO ] PERFORMANCE_HINT_NUM_REQUESTS: 0
[ INFO ] PERF_COUNT: NO
[ INFO ] OpenVINO Runtime version ......... <version>
[ INFO ] Build ........... <build>
[ INFO ]
[ INFO ] Available devices:
[ INFO ] CPU
[ INFO ] SUPPORTED_PROPERTIES:
[ 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 ] CACHE_DIR : ""
[ INFO ] ENABLE_CPU_PINNING : NO
[ INFO ] INFERENCE_NUM_THREADS : 0
[ INFO ] NUM_STREAMS : 1
[ INFO ] DUMP_EXEC_GRAPH_AS_DOT : ""
[ INFO ] INFERENCE_PRECISION_HINT : f32
[ INFO ] EXCLUSIVE_ASYNC_REQUESTS : NO
[ INFO ] PERFORMANCE_HINT : ""
[ INFO ] PERFORMANCE_HINT_NUM_REQUESTS : 0
[ INFO ] PERF_COUNT : NO