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
|
//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include "LayerVisitorBase.hpp"
#include "StaticRangeVisitor.hpp"
#include <armnn/INetwork.hpp>
#include <armnn/Types.hpp>
#include <armnn/INetworkQuantizer.hpp>
#include <unordered_map>
namespace armnn
{
// Forward declaration
class StaticRangeVisitor;
/// Visitor object for quantizing layers in a network
class QuantizerVisitor : public LayerVisitorBase<VisitorNoThrowPolicy>
{
public:
QuantizerVisitor(const StaticRangeVisitor* staticRangeVisitor);
~QuantizerVisitor() = default;
/// Functions to quantize the individual layers, overridden from ILayerVisitor
void VisitInputLayer(const IConnectableLayer* layer, LayerBindingId id, const char* name = nullptr) override;
void VisitAdditionLayer(const IConnectableLayer* layer, const char* name = nullptr) override;
void VisitActivationLayer(const IConnectableLayer* layer,
const ActivationDescriptor& activationDescriptor,
const char* name = nullptr) override;
void VisitOutputLayer(const IConnectableLayer* layer, LayerBindingId id, const char* name = nullptr) override;
void VisitBatchNormalizationLayer(const IConnectableLayer* layer,
const BatchNormalizationDescriptor& desc,
const ConstTensor& mean,
const ConstTensor& variance,
const ConstTensor& beta,
const ConstTensor& gamma,
const char* name = nullptr) override;
void VisitFullyConnectedLayer(const IConnectableLayer *layer,
const FullyConnectedDescriptor&,
const ConstTensor&,
const char *name = nullptr) override;
void VisitFullyConnectedLayer(const IConnectableLayer *layer,
const FullyConnectedDescriptor&,
const ConstTensor&,
const ConstTensor&,
const char *name = nullptr) override;
// Extract the quantized network
void VisitConvolution2dLayer(const IConnectableLayer* layer,
const Convolution2dDescriptor& convolution2dDescriptor,
const ConstTensor& weights,
const char* name = nullptr) override;
void VisitConvolution2dLayer(const IConnectableLayer* layer,
const Convolution2dDescriptor& convolution2dDescriptor,
const ConstTensor& weights,
const ConstTensor& biases,
const char* name = nullptr) override;
/// Extract the quantized network
INetworkPtr RetrieveFinalNetwork() { return std::move(m_QuantizedNetwork); }
private:
/// Connects the layer to preceeding layers and sets the quantization parameters based on recorded ranges
void SetQuantizedInputConnections(const IConnectableLayer* srcLayer, IConnectableLayer* quantizedLayer);
/// Record the guids so we can easily find the layers later
void RecordLayer(const IConnectableLayer* srcLayer, IConnectableLayer* qLayer);
/// Reference to the static range visitor used to retrieve the quantization ranges
const StaticRangeVisitor* m_StaticRangeVisitor;
/// Quantized version of the model we are building up
INetworkPtr m_QuantizedNetwork;
/// Mapping from input network guids to quantized network guids
std::unordered_map<LayerGuid, LayerGuid> m_OriginalToQuantizedGuidMap;
/// Mapping from guid to layer in quantized network
std::unordered_map<LayerGuid, IConnectableLayer*> m_QuantizedGuidToLayerMap;
};
} //namespace armnn
|
