1 // Copyright (C) 2018-2019 Intel Corporation
2 // SPDX-License-Identifier: Apache-2.0
6 * @brief This is a header file for the ICNNNetwork class
7 * @file ie_icnn_network.hpp
11 #include "ie_common.h"
12 #include "ie_layers.h"
15 #include "details/ie_irelease.hpp"
16 #include "ie_preprocess.hpp"
17 #include "ie_input_info.hpp"
18 #include "ie_icnn_network_stats.hpp"
19 #include "ie_iextension.h"
30 namespace InferenceEngine {
33 * @brief A collection that contains string as key, and Data smart pointer as value
35 using OutputsDataMap = std::map<std::string, DataPtr>;
38 * @brief This is the main interface to describe the NN topology
40 class ICNNNetwork : public details::IRelease {
42 using Ptr = std::shared_ptr<ICNNNetwork>;
45 * @brief Returns constant nGraph function
46 * @return constant nGraph function
48 virtual const std::shared_ptr<ngraph::Function> getFunction() const noexcept = 0;
51 * @brief Returns nGraph function
52 * @return nGraph function
54 virtual std::shared_ptr<ngraph::Function> getFunction() noexcept = 0;
57 * @brief Returns the main network operating precision.
58 * This may be MIXED if not homogeneous.
59 * @return A precision type
61 virtual Precision getPrecision() const noexcept = 0;
64 * @brief Gets the network output Data node information. The received info is stored in the given Data node.
65 * For single and multiple outputs networks.
66 * @param out Reference to the OutputsDataMap object
68 virtual void getOutputsInfo(OutputsDataMap& out) const noexcept = 0;
71 * @brief Gets the network input Data node information. The received info is stored in the given InputsDataMap object.
72 * For single and multiple inputs networks.
73 * This method must be called to find out input names for using them later during filling of a map
74 * of blobs passed later to InferenceEngine::IInferencePlugin::Infer()
75 * @param inputs Reference to InputsDataMap object.
77 virtual void getInputsInfo(InputsDataMap& inputs) const noexcept = 0;
81 * @brief Returns information on certain input pointed by inputName
82 * @param inputName Name of input layer to get info on
83 * @return A smart pointer to the input information
85 virtual InputInfo::Ptr getInput(const std::string& inputName) const noexcept = 0;
88 * @brief Gets the network name. The name is stored in the given pName string.
89 * @param pName - will receive actual network name, specified in IR file,
90 * pName should point to valid memory address before invoking this function
91 * @param len - size in bytes of pName buffer, actual name is trimmed by this size
93 virtual void getName(char* pName, size_t len) const noexcept = 0;
96 * @brief Returns the network name.
97 * @return Network name
99 virtual const std::string& getName() const noexcept = 0;
102 * @brief Returns the number of layers in the network as an integer value
103 * @return The number of layers as an integer value
105 virtual size_t layerCount() const noexcept = 0;
108 * @brief Returns a smart pointer reference to a Data node given its name.
109 * If the Data node is missing, returns reference to a default initialized new empty data pointer with given name.
110 * @param dname Name of the Data node
111 * @return Data node smart pointer
113 virtual DataPtr& getData(const char* dname) noexcept = 0;
116 * @brief Insert a layer into the network. A user is responsible to connect it to other data elements.
117 * @param layer Const reference to a layer smart pointer
119 virtual void addLayer(const CNNLayerPtr& layer) noexcept = 0;
122 * @brief Adds output to the layer
123 * @param layerName Name of the layer
124 * @param outputIndex Index of the output
125 * @param resp Response message
126 * @return Status code of the operation
129 addOutput(const std::string& layerName, size_t outputIndex = 0, ResponseDesc* resp = nullptr) noexcept = 0;
132 * @brief Gets network layer with the given name
133 * @param layerName Given name of the layer
134 * @param out Pointer to the found CNNLayer object with the given name
135 * @param resp Pointer to the response message that holds a description of an error if any occurred
136 * @return Status code of the operation. OK if succeeded
138 virtual StatusCode getLayerByName(const char* layerName, CNNLayerPtr& out, ResponseDesc* resp) const noexcept = 0;
141 * @brief Changes the inference batch size.
142 * @note There are several limitations and it's not recommended to use it. Set batch to the input shape and call ICNNNetwork::reshape.
143 * @param size Size of batch to set
144 * @return Status code of the operation
145 * @note: Current implementation of the function sets batch size to the first dimension of all layers in the networks.
146 * Before calling it make sure that all your layers have batch in the first dimension, otherwise the method works incorrectly.
147 * This limitation is resolved via shape inference feature
148 * by using InferenceEngine::ICNNNetwork::reshape method.
149 * To read more refer to the Shape Inference section in documentation
151 virtual StatusCode setBatchSize(size_t size, ResponseDesc* responseDesc) noexcept = 0;
154 * @brief Gets the inference batch size
155 * @return The size of batch as a size_t value
157 virtual size_t getBatchSize() const noexcept = 0;
160 * @brief Map of pairs: name of corresponding data and its dimension.
162 using InputShapes = std::map<std::string, SizeVector>;
165 * @brief Run shape inference with new input shapes for the network
166 * @param inputShapes - map of pairs: name of corresponding data and its dimension.
167 * @param resp Pointer to the response message that holds a description of an error if any occurred
168 * @return Status code of the operation
170 virtual StatusCode reshape(const InputShapes& /*inputShapes*/, ResponseDesc* /*resp*/) noexcept { return NOT_IMPLEMENTED; };
173 * @brief Registers extension within the plugin
174 * @param extension Pointer to already loaded reader extension with shape propagation implementations
175 * @param resp Pointer to the response message that holds a description of an error if any occurred
176 * @return Status code of the operation. OK if succeeded
179 AddExtension(const IShapeInferExtensionPtr& /*extension*/, ResponseDesc* /*resp*/) noexcept { return NOT_IMPLEMENTED; };
181 virtual StatusCode getStats(ICNNNetworkStats** /*stats*/, ResponseDesc* /*resp*/) const noexcept { return NOT_IMPLEMENTED; };
184 * @brief Serialize network to IR and weights files.
185 * @param xmlPath Path to output IR file.
186 * @param binPath Path to output weights file.
187 * @return Status code of the operation
189 virtual StatusCode serialize(const std::string &xmlPath, const std::string &binPath, ResponseDesc* resp) const noexcept = 0;
191 } // namespace InferenceEngine