1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include "Serializer.hpp"
#include <armnn/ArmNN.hpp>
#include <iostream>
#include <Schema_generated.h>
#include <flatbuffers/util.h>
using namespace armnn;
namespace fb = flatbuffers;
namespace serializer = armnn::armnnSerializer;
namespace armnnSerializer
{
serializer::DataType GetFlatBufferDataType(DataType dataType)
{
switch (dataType)
{
case DataType::Float32:
return serializer::DataType::DataType_Float32;
case DataType::Float16:
return serializer::DataType::DataType_Float16;
case DataType::Signed32:
return serializer::DataType::DataType_Signed32;
case DataType::QuantisedAsymm8:
return serializer::DataType::DataType_QuantisedAsymm8;
case DataType::Boolean:
return serializer::DataType::DataType_Boolean;
default:
return serializer::DataType::DataType_Float16;
}
}
// Build FlatBuffer for Input Layer
void SerializerVisitor::VisitInputLayer(const IConnectableLayer* layer, LayerBindingId id, const char* name)
{
// Create FlatBuffer BaseLayer
auto flatBufferInputBaseLayer = CreateLayerBase(layer, serializer::LayerType::LayerType_Input);
// Create FlatBuffer BindableBaseLayer
auto flatBufferInputBindableBaseLayer = serializer::CreateBindableLayerBase(m_flatBufferBuilder,
flatBufferInputBaseLayer,
id);
// Push layer Guid to outputIds.
m_inputIds.push_back(layer->GetGuid());
// Create the FlatBuffer InputLayer
auto flatBufferInputLayer = serializer::CreateInputLayer(m_flatBufferBuilder, flatBufferInputBindableBaseLayer);
// Add the AnyLayer to the FlatBufferLayers
CreateAnyLayer(flatBufferInputLayer.o, serializer::Layer::Layer_InputLayer);
}
// Build FlatBuffer for Output Layer
void SerializerVisitor::VisitOutputLayer(const IConnectableLayer* layer, LayerBindingId id, const char* name)
{
// Create FlatBuffer BaseLayer
auto flatBufferOutputBaseLayer = CreateLayerBase(layer, serializer::LayerType::LayerType_Output);
// Create FlatBuffer BindableBaseLayer
auto flatBufferOutputBindableBaseLayer = serializer::CreateBindableLayerBase(m_flatBufferBuilder,
flatBufferOutputBaseLayer,
id);
// Push layer Guid to outputIds.
m_outputIds.push_back(layer->GetGuid());
// Create the FlatBuffer OutputLayer
auto flatBufferOutputLayer = serializer::CreateOutputLayer(m_flatBufferBuilder, flatBufferOutputBindableBaseLayer);
// Add the AnyLayer to the FlatBufferLayers
CreateAnyLayer(flatBufferOutputLayer.o, serializer::Layer::Layer_OutputLayer);
}
// Build FlatBuffer for Addition Layer
void SerializerVisitor::VisitAdditionLayer(const IConnectableLayer* layer, const char* name)
{
// Create FlatBuffer BaseLayer
auto flatBufferAdditionBaseLayer = CreateLayerBase(layer, serializer::LayerType::LayerType_Addition);
// Create the FlatBuffer AdditionLayer
auto flatBufferAdditionLayer = serializer::CreateAdditionLayer(m_flatBufferBuilder, flatBufferAdditionBaseLayer);
// Add the AnyLayer to the FlatBufferLayers
CreateAnyLayer(flatBufferAdditionLayer.o, serializer::Layer::Layer_AdditionLayer);
}
// Build FlatBuffer for Multiplication Layer
void SerializerVisitor::VisitMultiplicationLayer(const IConnectableLayer* layer, const char* name)
{
// Create FlatBuffer BaseLayer
auto flatBufferMultiplicationBaseLayer = CreateLayerBase(layer, serializer::LayerType::LayerType_Multiplication);
// Create the FlatBuffer MultiplicationLayer
auto flatBufferMultiplicationLayer =
serializer::CreateMultiplicationLayer(m_flatBufferBuilder, flatBufferMultiplicationBaseLayer);
// Add the AnyLayer to the FlatBufferLayers
CreateAnyLayer(flatBufferMultiplicationLayer.o, serializer::Layer::Layer_MultiplicationLayer);
}
fb::Offset<serializer::LayerBase> SerializerVisitor::CreateLayerBase(const IConnectableLayer* layer,
const serializer::LayerType layerType)
{
std::vector<fb::Offset<serializer::InputSlot>> inputSlots = CreateInputSlots(layer);
std::vector<fb::Offset<serializer::OutputSlot>> outputSlots = CreateOutputSlots(layer);
return serializer::CreateLayerBase(m_flatBufferBuilder,
layer->GetGuid(),
m_flatBufferBuilder.CreateString(layer->GetName()),
layerType,
m_flatBufferBuilder.CreateVector(inputSlots),
m_flatBufferBuilder.CreateVector(outputSlots));
}
void SerializerVisitor::CreateAnyLayer(const flatbuffers::Offset<void>& layer, const serializer::Layer serializerLayer)
{
auto anyLayer = armnn::armnnSerializer::CreateAnyLayer(m_flatBufferBuilder,
serializerLayer,
layer);
m_serializedLayers.push_back(anyLayer);
}
std::vector<fb::Offset<serializer::InputSlot>> SerializerVisitor::CreateInputSlots(const IConnectableLayer* layer)
{
std::vector<fb::Offset <serializer::InputSlot>> inputSlots;
// Get the InputSlots
for (unsigned int slotIndex = 0; slotIndex<layer->GetNumInputSlots(); ++slotIndex)
{
const IInputSlot& inputSlot = layer->GetInputSlot(slotIndex);
// Get the Connection for the InputSlot
const IOutputSlot* connection = inputSlot.GetConnection();
// Create FlatBuffer Connection
serializer::Connection conn(connection->GetOwningLayerGuid(), connection->CalculateIndexOnOwner());
// Create FlatBuffer InputSlot
inputSlots.push_back(serializer::CreateInputSlot(m_flatBufferBuilder, slotIndex, &conn));
}
return inputSlots;
}
std::vector<fb::Offset<serializer::OutputSlot>> SerializerVisitor::CreateOutputSlots(const IConnectableLayer* layer)
{
std::vector<fb::Offset<serializer::OutputSlot>> outputSlots;
// Get the OutputSlots
for (unsigned int slotIndex = 0; slotIndex < layer->GetNumOutputSlots(); ++slotIndex)
{
const IOutputSlot& outputSlot = layer->GetOutputSlot(slotIndex);
const TensorInfo& tensorInfo = outputSlot.GetTensorInfo();
// Get the dimensions
std::vector<unsigned int> shape;
for(unsigned int dim = 0; dim < tensorInfo.GetShape().GetNumDimensions(); ++dim)
{
shape.push_back(tensorInfo.GetShape()[dim]);
}
// Create FlatBuffer TensorInfo
auto flatBufferTensorInfo = serializer::CreateTensorInfo(m_flatBufferBuilder,
m_flatBufferBuilder.CreateVector(shape),
GetFlatBufferDataType(tensorInfo.GetDataType()),
tensorInfo.GetQuantizationScale(),
tensorInfo.GetQuantizationOffset());
// Create FlatBuffer Outputslot
outputSlots.push_back(serializer::CreateOutputSlot(m_flatBufferBuilder,
slotIndex,
flatBufferTensorInfo));
}
return outputSlots;
}
ISerializer* ISerializer::CreateRaw()
{
return new Serializer();
}
ISerializerPtr ISerializer::Create()
{
return ISerializerPtr(CreateRaw(), &ISerializer::Destroy);
}
void ISerializer::Destroy(ISerializer* serializer)
{
delete serializer;
}
void Serializer::Serialize(const INetwork& inNetwork)
{
// Iterate through to network
inNetwork.Accept(m_SerializerVisitor);
flatbuffers::FlatBufferBuilder& fbBuilder = m_SerializerVisitor.GetFlatBufferBuilder();
// Create FlatBuffer SerializedGraph
auto serializedGraph = serializer::CreateSerializedGraph(
fbBuilder,
fbBuilder.CreateVector(m_SerializerVisitor.GetSerializedLayers()),
fbBuilder.CreateVector(m_SerializerVisitor.GetInputIds()),
fbBuilder.CreateVector(m_SerializerVisitor.GetOutputIds()));
// Serialize the graph
fbBuilder.Finish(serializedGraph);
}
bool Serializer::SaveSerializedToStream(std::ostream& stream)
{
flatbuffers::FlatBufferBuilder& fbBuilder = m_SerializerVisitor.GetFlatBufferBuilder();
auto bytesToWrite = boost::numeric_cast<std::streamsize>(fbBuilder.GetSize());
stream.write(reinterpret_cast<const char*>(fbBuilder.GetBufferPointer()), bytesToWrite);
return !stream.bad();
}
} //nameespace armnnSerializer
|
