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[platform/upstream/armnn.git] / samples / DynamicSample.cpp
1 //
2 // Copyright © 2020 Arm Ltd. All rights reserved.
3 // SPDX-License-Identifier: MIT
4 //
5 #include <armnn/INetwork.hpp>
6 #include <armnn/IRuntime.hpp>
7 #include <armnn/Utils.hpp>
8 #include <armnn/Descriptors.hpp>
9
10 #include <iostream>
11
12 /// A simple example of using the ArmNN SDK API. In this sample, the users single input number is multiplied by 1.0f
13 /// using a fully connected layer with a single neuron to produce an output number that is the same as the input.
14 int main()
15 {
16     using namespace armnn;
17
18     // Construct ArmNN network
19     armnn::NetworkId networkIdentifier;
20     INetworkPtr myNetwork = INetwork::Create();
21
22     IConnectableLayer* input0 = myNetwork->AddInputLayer(0);
23     IConnectableLayer* input1 = myNetwork->AddInputLayer(1);
24     IConnectableLayer* add    = myNetwork->AddAdditionLayer();
25     IConnectableLayer* output = myNetwork->AddOutputLayer(0);
26
27     input0->GetOutputSlot(0).Connect(add->GetInputSlot(0));
28     input1->GetOutputSlot(0).Connect(add->GetInputSlot(1));
29     add->GetOutputSlot(0).Connect(output->GetInputSlot(0));
30
31     TensorInfo tensorInfo(TensorShape({2, 1}), DataType::Float32);
32     input0->GetOutputSlot(0).SetTensorInfo(tensorInfo);
33     input1->GetOutputSlot(0).SetTensorInfo(tensorInfo);
34     add->GetOutputSlot(0).SetTensorInfo(tensorInfo);
35
36     // Create ArmNN runtime
37     IRuntime::CreationOptions options; // default options
38     armnn::IRuntimePtr run(armnn::IRuntime::Create(options));
39
40     // Optimise ArmNN network
41     armnn::IOptimizedNetworkPtr optNet = Optimize(*myNetwork, {"SampleDynamic"}, run->GetDeviceSpec());
42     if (!optNet)
43     {
44         // This shouldn't happen for this simple sample, with reference backend.
45         // But in general usage Optimize could fail if the hardware at runtime cannot
46         // support the model that has been provided.
47         std::cerr << "Error: Failed to optimise the input network." << std::endl;
48         return 1;
49     }
50
51     // Load graph into runtime
52     run->LoadNetwork(networkIdentifier, std::move(optNet));
53
54     // input data
55     std::vector<float> input0Data
56         {
57             5.0f, 3.0f
58         };
59     std::vector<float> input1Data
60         {
61             10.0f, 8.0f
62         };
63     std::vector<float> outputData(2);
64
65     InputTensors inputTensors
66         {
67             {0,armnn::ConstTensor(run->GetInputTensorInfo(networkIdentifier, 0), input0Data.data())},
68             {1,armnn::ConstTensor(run->GetInputTensorInfo(networkIdentifier, 0), input1Data.data())}
69         };
70     OutputTensors outputTensors
71         {
72             {0,armnn::Tensor(run->GetOutputTensorInfo(networkIdentifier, 0), outputData.data())}
73         };
74
75     // Execute network
76     run->EnqueueWorkload(networkIdentifier, inputTensors, outputTensors);
77
78     std::cout << "Addition operator result is {" << outputData[0] << "," << outputData[1] << "}" << std::endl;
79     return 0;
80 }