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//
// Copyright © 2017 Arm Ltd and Contributors. All rights reserved.
// SPDX-License-Identifier: MIT
//
#pragma once
#include <armnn/BackendOptions.hpp>
#include <armnn/Deprecated.hpp>
#include <armnn/DescriptorsFwd.hpp>
#include <armnn/ILayerVisitor.hpp>
#include <armnn/IStrategy.hpp>
#include <armnn/NetworkFwd.hpp>
#include <armnn/Optional.hpp>
#include <armnn/TensorFwd.hpp>
#include <armnn/Logging.hpp>
#include <armnn/backends/TensorHandle.hpp>
#include <memory>
#include <vector>
namespace armnn
{
/// @brief An input connection slot for a layer.
/// The input slot can be connected to an output slot of the preceding layer in the graph.
/// Only one connection to the input slot is allowed.
class IInputSlot
{
public:
virtual const IOutputSlot* GetConnection() const = 0;
virtual IOutputSlot* GetConnection() = 0;
virtual const IConnectableLayer& GetOwningIConnectableLayer() const = 0;
protected:
/// Not user deletable.
~IInputSlot() {}
};
/// @brief An output connection slot for a layer.
/// The output slot may be connected to 1 or more input slots of subsequent layers in the graph.
class IOutputSlot
{
public:
virtual unsigned int GetNumConnections() const = 0;
virtual const IInputSlot* GetConnection(unsigned int index) const = 0;
virtual IInputSlot* GetConnection(unsigned int outputindex) = 0;
virtual void SetTensorInfo(const TensorInfo& tensorInfo) = 0;
virtual const TensorInfo& GetTensorInfo() const = 0;
virtual bool IsTensorInfoSet() const = 0;
virtual int Connect(IInputSlot& destination) = 0;
virtual void Disconnect(IInputSlot& slot) = 0;
virtual unsigned int CalculateIndexOnOwner() const = 0;
virtual LayerGuid GetOwningLayerGuid() const = 0;
virtual const IConnectableLayer& GetOwningIConnectableLayer() const = 0;
protected:
/// Not user deletable.
~IOutputSlot() {}
};
/// @brief Interface for a layer that is connectable to other layers via InputSlots and OutputSlots.
class IConnectableLayer
{
public:
/// Returns the name of the layer
virtual const char* GetName() const = 0;
/// Returns the number of connectable input slots
virtual unsigned int GetNumInputSlots() const = 0;
/// Returns the number of connectable output slots
virtual unsigned int GetNumOutputSlots() const = 0;
/// Get a const input slot handle by slot index
virtual const IInputSlot& GetInputSlot(unsigned int index) const = 0;
/// Get the input slot handle by slot index
virtual IInputSlot& GetInputSlot(unsigned int index) = 0;
/// Get the const output slot handle by slot index
virtual const IOutputSlot& GetOutputSlot(unsigned int index) const = 0;
/// Get the output slot handle by slot index
virtual IOutputSlot& GetOutputSlot(unsigned int index) = 0;
/// Infer the shape of the output(s) based on the provided input shape(s)
virtual std::vector<TensorShape> InferOutputShapes(const std::vector<TensorShape>& inputShapes) const = 0;
/// Returns the unique id of the layer
virtual LayerGuid GetGuid() const = 0;
// The Accept function needs to be wrapped in a no warn macro to avoid deprecation warnings from
// the deprecated ILayerVisitor which is used in the function.
ARMNN_NO_DEPRECATE_WARN_BEGIN
/// Apply a visitor to this layer
ARMNN_DEPRECATED_MSG_REMOVAL_DATE("Accept is deprecated. The ILayerVisitor that works in conjunction with this "
"Accept function is deprecated. Use IStrategy in combination with "
"ExecuteStrategy instead, which is an ABI/API stable version of the "
"visitor pattern.",
"22.05")
virtual void Accept(ILayerVisitor& visitor) const = 0;
ARMNN_NO_DEPRECATE_WARN_END
/// Apply a visitor to this layer
virtual void ExecuteStrategy(IStrategy& strategy) const = 0;
/// Provide a hint for the optimizer as to which backend to prefer for this layer
virtual void BackendSelectionHint(Optional<BackendId> backend) = 0;
/// Returns the armnn::LayerType of this layer
virtual LayerType GetType() const = 0;
/// If the layer has a descriptor return it.
/// The base descriptor can then be cast to the correct descriptor class.
/// If the layer has no associated descriptor a struct of type NullDescriptor will be returned.
/// Note: NullDescriptors can be detected because they return true when
/// the BaseDescriptor IsNull function is invoked.
virtual const BaseDescriptor& GetParameters() const = 0;
using ConstantTensors = std::vector<std::reference_wrapper<std::shared_ptr<ConstTensorHandle>>>;
// Returns ConstantTensors of this Layer if it has any, otherwise returns empty vector.
virtual ConstantTensors GetConstantTensorsByRef() = 0;
protected:
/// Objects are not deletable via the handle
~IConnectableLayer() {}
};
/// ArmNN performs an optimization on each model/network before it gets loaded for execution. OptimizerOptions provides
/// a set of features that allows the user to customize this optimization on a per model basis.
struct OptimizerOptions
{
OptimizerOptions()
: m_ReduceFp32ToFp16(false)
, m_Debug(false)
, m_ReduceFp32ToBf16(false)
, m_shapeInferenceMethod(armnn::ShapeInferenceMethod::ValidateOnly)
, m_ImportEnabled(false)
, m_ModelOptions()
, m_ProfilingEnabled(false)
{}
OptimizerOptions(bool reduceFp32ToFp16, bool debug, bool reduceFp32ToBf16, bool importEnabled,
ModelOptions modelOptions = {})
: m_ReduceFp32ToFp16(reduceFp32ToFp16)
, m_Debug(debug)
, m_ReduceFp32ToBf16(reduceFp32ToBf16)
, m_shapeInferenceMethod(armnn::ShapeInferenceMethod::ValidateOnly)
, m_ImportEnabled(importEnabled)
, m_ModelOptions(modelOptions)
, m_ProfilingEnabled(false)
{
if (m_ReduceFp32ToFp16 && m_ReduceFp32ToBf16)
{
throw InvalidArgumentException("BFloat16 and Float16 optimization cannot be enabled at the same time.");
}
}
OptimizerOptions(bool reduceFp32ToFp16, bool debug, bool reduceFp32ToBf16 = false,
ShapeInferenceMethod shapeInferenceMethod = armnn::ShapeInferenceMethod::ValidateOnly,
bool importEnabled = false, ModelOptions modelOptions = {})
: m_ReduceFp32ToFp16(reduceFp32ToFp16)
, m_Debug(debug)
, m_ReduceFp32ToBf16(reduceFp32ToBf16)
, m_shapeInferenceMethod(shapeInferenceMethod)
, m_ImportEnabled(importEnabled)
, m_ModelOptions(modelOptions)
, m_ProfilingEnabled(false)
{
if (m_ReduceFp32ToFp16 && m_ReduceFp32ToBf16)
{
throw InvalidArgumentException("BFloat16 and Float16 optimization cannot be enabled at the same time.");
}
}
const std::string ToString() const
{
std::stringstream stream;
stream << "OptimizerOptions: \n";
stream << "\tReduceFp32ToFp16: " << m_ReduceFp32ToFp16 << "\n";
stream << "\tReduceFp32ToBf16: " << m_ReduceFp32ToBf16 << "\n";
stream << "\tDebug: " << m_Debug << "\n";
stream << "\tShapeInferenceMethod: " <<
(m_shapeInferenceMethod == ShapeInferenceMethod::ValidateOnly ? "ValidateOnly" : "InferAndValidate") << "\n";
stream << "\tImportEnabled: " << m_ImportEnabled << "\n";
stream << "\tProfilingEnabled: " << m_ProfilingEnabled << "\n";
stream << "\tModelOptions: \n";
for (auto optionsGroup : m_ModelOptions)
{
for (size_t i=0; i < optionsGroup.GetOptionCount(); i++)
{
const armnn::BackendOptions::BackendOption option = optionsGroup.GetOption(i);
stream << "\t\tBackend: " << optionsGroup.GetBackendId() << "\n"
<< "\t\t\tOption: " << option.GetName() << "\n"
<< "\t\t\tValue: " << std::string(option.GetValue().ToString()) << "\n";
}
}
return stream.str();
}
/// Reduces all Fp32 operators in the model to Fp16 for faster processing.
/// @Note This feature works best if all operators of the model are in Fp32. ArmNN will add conversion layers
/// between layers that weren't in Fp32 in the first place or if the operator is not supported in Fp16.
/// The overhead of these conversions can lead to a slower overall performance if too many conversions are
/// required.
bool m_ReduceFp32ToFp16;
// Add debug data for easier troubleshooting
bool m_Debug;
/// Reduces all Fp32 operators in the model to Bf16 for faster processing.
/// @Note This feature works best if all operators of the model are in Fp32. ArmNN will add conversion layers
/// between layers that weren't in Fp32 in the first place or if the operator is not supported in Bf16.
/// The overhead of these conversions can lead to a slower overall performance if too many conversions are
/// required.
bool m_ReduceFp32ToBf16;
// Infer output size when not available
ShapeInferenceMethod m_shapeInferenceMethod;
// Enable Import
bool m_ImportEnabled;
// Enable Model Options
ModelOptions m_ModelOptions;
// Enable profiling dump of the optimizer phase
bool m_ProfilingEnabled;
};
class IWorkloadFactory;
class NetworkImpl;
using INetworkPtr = std::unique_ptr<INetwork, void(*)(INetwork* network)>;
using IOptimizedNetworkPtr = std::unique_ptr<IOptimizedNetwork, void(*)(IOptimizedNetwork* network)>;
using CompiledBlobDeleter = std::function<void(const void*)>;
using CompiledBlobPtr = std::unique_ptr<void, CompiledBlobDeleter>;
/// Main network class which provides the interface for building up a neural network.
/// This object is subsequently required by the IRuntime::Load() method.
class INetwork
{
public:
static INetwork* CreateRaw(NetworkOptions networkOptions = {});
static INetworkPtr Create(NetworkOptions networkOptions = {});
static void Destroy(INetwork* network);
Status PrintGraph();
/// Adds an input layer to the network.
/// @param id - User generated id to uniquely identify a particular input. The same id needs to be specified.
/// when passing the inputs to the IRuntime::EnqueueWorkload() function.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddInputLayer(LayerBindingId id, const char* name = nullptr);
/// Adds an ArgMinMax layer to the network.
/// @param desc - Parameters for the L2 normalization operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddArgMinMaxLayer(const ArgMinMaxDescriptor& desc,
const char* name = nullptr);
/// Adds a cast layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddCastLayer(const char* name = nullptr);
/// Add a Comparison layer to the network.
/// @param name - Optional name for the layer.
/// @param desc - Descriptor for the comparison operation.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddComparisonLayer(const ComparisonDescriptor& comparisonDescriptor,
const char* name = nullptr);
/// Adds a concatenation layer to the network.
/// @param concatDescriptor - ConcatDescriptor (synonym for OriginsDescriptor) to configure the concatenation
/// process. Number of Views must be equal to the number of inputs, and their order
/// must match - e.g. first view corresponds to the first input, second view to the
/// second input, etc....
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddConcatLayer(const ConcatDescriptor& concatDescriptor,
const char* name = nullptr);
/// Adds a 2D convolution layer to the network.
/// @param convolution2dDescriptor - Description of the 2D convolution layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddConvolution2dLayer(const Convolution2dDescriptor& convolution2dDescriptor,
const char* name = nullptr);
/// Adds a 2D convolution layer to the network.
/// @param convolution2dDescriptor - Description of the 2D convolution layer.
/// @param weights - Tensor for the weights data.
/// @param biases - Optional tensor for the bias data. If specified, must match the output tensor shape.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
ARMNN_DEPRECATED_MSG_REMOVAL_DATE("This AddConvolution2dLayer overload is deprecated", "22.08")
IConnectableLayer* AddConvolution2dLayer(const Convolution2dDescriptor& convolution2dDescriptor,
const ConstTensor& weights,
const Optional<ConstTensor>& biases,
const char* name = nullptr);
ARMNN_DEPRECATED_MSG_REMOVAL_DATE("This AddConvolution2dLayer overload is deprecated", "22.08")
IConnectableLayer* AddConvolution2dLayer(const Convolution2dDescriptor& convolution2dDescriptor,
const ConstTensor& weights,
const char* name = nullptr);
ARMNN_DEPRECATED_MSG_REMOVAL_DATE("This AddConvolution2dLayer overload is deprecated", "22.08")
IConnectableLayer* AddConvolution2dLayer(const Convolution2dDescriptor& convolution2dDescriptor,
const ConstTensor& weights,
const ConstTensor& biases,
const char* name = nullptr);
/// Adds a 3D convolution layer to the network.
/// @param convolution3dDescriptor - Description of the 3D convolution layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddConvolution3dLayer(const Convolution3dDescriptor& convolution3dDescriptor,
const char* name = nullptr);
/// Adds a depth to space layer to the network.
/// @param depthToSpaceDescriptor - Parameters for the depth to space operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddDepthToSpaceLayer(const DepthToSpaceDescriptor& depthToSpaceDescriptor,
const char* name = nullptr);
/// Adds a 2D depthwise convolution layer to the network.
/// @param convolution2dDescriptor - Description of the 2D depthwise convolution layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddDepthwiseConvolution2dLayer(const DepthwiseConvolution2dDescriptor& convolution2dDescriptor,
const char* name = nullptr);
/// Adds a 2D depthwise convolution layer to the network.
/// @param convolution2dDescriptor - Description of the 2D depthwise convolution layer.
/// @param weights - Tensor for the weights. Expected format: [channelMultiplier, inputChannels, height, width].
/// @param biases Optional tensor for the bias data. If specified, must match the output tensor shape.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
ARMNN_DEPRECATED_MSG("This AddDepthwiseConvolution2dLayer overload is deprecated")
IConnectableLayer* AddDepthwiseConvolution2dLayer(
const DepthwiseConvolution2dDescriptor& convolution2dDescriptor,
const ConstTensor& weights,
const Optional<ConstTensor>& biases,
const char* name = nullptr);
/// Adds a Dequantize layer to the network.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddDequantizeLayer(const char* name = nullptr);
/// Adds a Detection PostProcess layer to the network.
/// @param descriptor - Description of the Detection PostProcess layer.
/// @param anchors - Tensor for anchors.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddDetectionPostProcessLayer(
const DetectionPostProcessDescriptor& descriptor,
const ConstTensor& anchors,
const char* name = nullptr);
/// Add an ElementwiseUnary layer to the network.
/// @param name - Optional name for the layer.
/// @param desc - Descriptor for the elementwiseUnary operation.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddElementwiseUnaryLayer(const ElementwiseUnaryDescriptor& elementwiseUnaryDescriptor,
const char* name = nullptr);
/// Add an Fill layer to the network.
/// @param name - Optional name for the layer.
/// @param fillDescriptor - Descriptor for the fill operation.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddFillLayer(const FillDescriptor& fillDescriptor,
const char* name = nullptr);
/// Adds a fully connected layer to the network.
/// @param fullyConnectedDescriptor - Description of the fully connected layer.
/// @return - Interface for configuring the layer.
///
/// @note Weights and biases are passed in as inputs. If they are constant tensors you can simply store
/// them in a ConstantLayer as seen below. A full example can be found in samples/SimpleSample.cpp.
///
/// @code
/// // Make sure the IsConstant flag is set on the weightsInfo before passing it to the ConstTensor.
/// ConstTensor weights(weightsInfo, weightsData);
///
/// // Constant layer that now holds weights data for FullyConnected
/// IConnectableLayer* const constantWeightsLayer = myNetwork->AddConstantLayer(weights, "weights");
///
/// FullyConnectedDescriptor fullyConnectedDesc;
/// IConnectableLayer* const fullyConnectedLayer = myNetwork->AddFullyConnectedLayer(fullyConnectedDesc,
/// "fully connected");
/// IConnectableLayer* InputLayer = myNetwork->AddInputLayer(0);
/// InputLayer->GetOutputSlot(0).Connect(fullyConnectedLayer->GetInputSlot(0));
/// constantWeightsLayer->GetOutputSlot(0).Connect(fullyConnectedLayer->GetInputSlot(1));
/// @endcode
IConnectableLayer* AddFullyConnectedLayer(const FullyConnectedDescriptor& fullyConnectedDescriptor,
const char* name = nullptr);
/// Adds a permute layer to the network.
/// @param permuteDescriptor - PermuteDescriptor to configure the permute.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddPermuteLayer(const PermuteDescriptor& permuteDescriptor,
const char* name = nullptr);
/// Adds a batch to space ND layer to the network.
/// @param batchToSpaceNdDescriptor - Description of the layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddBatchToSpaceNdLayer(const BatchToSpaceNdDescriptor& batchToSpaceNdDescriptor,
const char* name = nullptr);
/// Adds a 2D pooling layer to the network.
/// @param pooling2dDescriptor - Pooling2dDescriptor to configure the pooling.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddPooling2dLayer(const Pooling2dDescriptor& pooling2dDescriptor,
const char* name = nullptr);
/// Adds a 3D pooling layer to the network.
/// @param pooling3dDescriptor - Pooling3dDescriptor to configure the pooling.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddPooling3dLayer(const Pooling3dDescriptor& pooling3dDescriptor,
const char* name = nullptr);
/// Adds a Precompiled layer to the network.
/// Method use is for backend users.
/// @param preCompiledDescriptor - PreCompiledDescriptor contains parameters for the Precompiled layer.
/// @param compiledBlobPtr - CompiledBlobPtr pre-compiled object set for the Precompiled layer.
/// @param backend - optional BackendId set for the Precompiled layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddPrecompiledLayer(const PreCompiledDescriptor& preCompiledDescriptor,
CompiledBlobPtr compiledBlobPtr,
const Optional<BackendId>& backend,
const char* name = nullptr);
/// Adds an activation layer to the network.
/// @param activationDescriptor - ActivationDescriptor to configure the activation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddActivationLayer(const ActivationDescriptor& activationDescriptor,
const char* name = nullptr);
/// Adds a normalization layer to the network.
/// @param normalizationDescriptor - NormalizationDescriptor to configure the normalization.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddNormalizationLayer(const NormalizationDescriptor& normalizationDescriptor,
const char* name = nullptr);
/// Adds a slice layer to the network.
/// @param sliceDescriptor - SliceDescriptor to configure the slice operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSliceLayer(const SliceDescriptor& sliceDescriptor, const char* name = nullptr);
/// Adds a softmax layer to the network.
/// If the data type is QAsymm8, then the output quantization parameters
/// must have a scale of 1/256 and an offset of 0
/// @param softmaxDescriptor - SoftmaxDescriptor to configure the softmax.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSoftmaxLayer(const SoftmaxDescriptor& softmaxDescriptor,
const char* name = nullptr);
/// Adds a splitter layer to the network.
/// @param splitterDescriptor - ViewsDescriptor to configure the splitting process.
/// Number of Views must be equal to the number of outputs,
/// and their order must match - e.g. first view corresponds to
/// the first output, second view to the second output, etc....
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSplitterLayer(const ViewsDescriptor& splitterDescriptor,
const char* name = nullptr);
/// Adds a merge layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddMergeLayer(const char* name = nullptr);
/// Adds an addition layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddAdditionLayer(const char* name = nullptr);
/// Adds a multiplication layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddMultiplicationLayer(const char* name = nullptr);
/// Adds a batch normalization layer to the network.
/// @param mean - Pre-calculated mean for each channel.
/// @param variance - Pre-calculated variance for each channel.
/// @param beta - Per-channel additive factor.
/// @param gamma - Per-channel multiplicative factor.
/// @return - Interface for configuring the layer.
/// @param name - Optional name for the layer.
IConnectableLayer* AddBatchNormalizationLayer(const BatchNormalizationDescriptor& desc,
const ConstTensor& mean,
const ConstTensor& variance,
const ConstTensor& beta,
const ConstTensor& gamma,
const char* name = nullptr);
/// Adds a rank layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddRankLayer(const char* name = nullptr);
/// Adds a resize layer to the network.
/// @param resizeDescriptor - Parameters for the resize operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddResizeLayer(const ResizeDescriptor& resizeDescriptor,
const char* name = nullptr);
/// Adds a reduce layer to the network.
/// @param ReduceDescriptor - Parameters for the reduce operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddReduceLayer(const ReduceDescriptor& reduceDescriptor,
const char* name = nullptr);
/// Adds an instance normalization layer to the network.
/// @param desc - Parameters for the instance normalization operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddInstanceNormalizationLayer(const InstanceNormalizationDescriptor& desc,
const char* name = nullptr);
/// Adds an L2 normalization layer to the network.
/// Normalization is performed along dimension 1, but requires a 4d input.
/// @param desc - Parameters for the L2 normalization operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddL2NormalizationLayer(const L2NormalizationDescriptor& desc,
const char* name = nullptr);
/// Adds a log softmax layer to the network.
/// @param logSoftmaxDescriptor - LogSoftmaxDescriptor to configure the log softmax.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddLogSoftmaxLayer(const LogSoftmaxDescriptor& logSoftmaxDescriptor,
const char* name = nullptr);
/// Adds a layer with no inputs and a single output, which always corresponds to
/// the passed in constant tensor.
/// @param input - Tensor to be provided as the only output of the layer. The layer will maintain
/// its own copy of the tensor data, meaning the memory referenced by @a input can
/// be freed or reused after this function is called.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddConstantLayer(const ConstTensor& input,
const char* name = nullptr);
/// Adds a reshape layer to the network.
/// @param reshapeDescriptor - Parameters for the reshape operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddReshapeLayer(const ReshapeDescriptor& reshapeDescriptor,
const char* name = nullptr);
/// Adds a shape layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddShapeLayer(const char* name = nullptr);
/// Adds a space to batch layer to the network.
/// @param spaceToBatchNdDescriptor - Parameters for the space to batch operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSpaceToBatchNdLayer(const SpaceToBatchNdDescriptor& spaceToBatchNdDescriptor,
const char* name = nullptr);
/// Adds a space to depth layer to the network.
/// @param spaceToDepthDescriptor - Parameters for the space to depth operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSpaceToDepthLayer(const SpaceToDepthDescriptor& spaceToDepthDescriptor,
const char* name = nullptr);
/// Adds a floor layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddFloorLayer(const char* name = nullptr);
/// Adds an output layer to the network.
/// @param id - User generated id to uniquely identify a particular output. The same id needs to be specified
/// when passing the outputs to the IRuntime::EnqueueWorkload() function.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddOutputLayer(LayerBindingId id, const char* name = nullptr);
/// Add a Lstm layer to the network
/// @param descriptor - Parameters for the Lstm operation
/// @param params - Weights and biases for the LSTM cell
/// @param name - Optional name for the layer
/// @return - Interface for configuring the layer.
IConnectableLayer* AddLstmLayer(const LstmDescriptor& descriptor,
const LstmInputParams& params,
const char* name = nullptr);
/// Adds a division layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddDivisionLayer(const char* name = nullptr);
/// Adds a subtraction layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSubtractionLayer(const char* name = nullptr);
/// Add a Maximum layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddMaximumLayer(const char* name = nullptr);
/// Add a Mean layer to the network.
/// @param meanDescriptor - Parameters for the mean operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddMeanLayer(const MeanDescriptor& meanDescriptor, const char* name = nullptr);
/// Adds a fully pad layer to the network.
/// @param paddings - n by 2 tensor, where n is the rank of the input tensor,
/// such that paddings[i,0] indicates the amount of padding to add in front of dimonsion i, and
/// paddings[i,1] indicates the amount of padding to add after the end of dimension i
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddPadLayer(const PadDescriptor& padDescriptor,
const char* name = nullptr);
/// Add a quantize layer to the network
///@param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddQuantizeLayer(const char* name = nullptr);
/// Adds a strided slice layer to the network.
/// @param StridedSliceDescriptor - Parameters for the strided slice operation.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddStridedSliceLayer(const StridedSliceDescriptor& stridedSliceDescriptor,
const char* name = nullptr);
/// Add a Minimum layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddMinimumLayer(const char* name = nullptr);
/// Add Gather layer to the network.
/// @param descriptor - Description of the gather layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddGatherLayer(const GatherDescriptor& descriptor,
const char* name = nullptr);
/// Add GatherNd layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddGatherNdLayer(const char* name = nullptr);
/// Adds a switch layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddSwitchLayer(const char* name = nullptr);
/// Adds a PReLU layer to the network.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddPreluLayer(const char* name = nullptr);
/// Adds a 2D transpose convolution layer to the network.
/// @param descriptor - Description of the 2D transpose convolution layer.
/// @param weights - Tensor for the weights data.
/// @param biases - Optional tensor for the bias data.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddTransposeConvolution2dLayer(const TransposeConvolution2dDescriptor& descriptor,
const ConstTensor& weights,
const Optional<ConstTensor>& biases,
const char* name = nullptr);
/// Adds a transpose layer to the network.
/// @param transposeDescriptor - TransposeDescriptor to configure the transpose.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddTransposeLayer(const TransposeDescriptor& transposeDescriptor,
const char* name = nullptr);
/// Adds a stack layer to the network.
/// @param descriptor - Description of the stack layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddStackLayer(const StackDescriptor& descriptor,
const char* name = nullptr);
/// Add a stand-in layer for a type unknown to the Arm NN framework.
/// Note: Due to the nature of this layer, no validation can be performed by the framework.
/// Furthermore, Any model containing this layer cannot make use of dynamic tensors since the
/// tensor sizes cannot be inferred.
/// @descriptor - Descriptor for the StandIn layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddStandInLayer(const StandInDescriptor& descriptor,
const char* name = nullptr);
/// Add a QuantizedLstm layer to the network
/// @param params - The weights and biases for the Quantized LSTM cell
/// @param name - Optional name for the layer
/// @return - Interface for configuring the layer.
IConnectableLayer* AddQuantizedLstmLayer(const QuantizedLstmInputParams& params,
const char* name = nullptr);
/// Add a QLstm layer to the network
/// @param descriptor - Parameters for the QLstm operation
/// @param params - Weights and biases for the layer
/// @param name - Optional name for the layer
/// @return - Interface for configuring the layer.
IConnectableLayer* AddQLstmLayer(const QLstmDescriptor& descriptor,
const LstmInputParams& params,
const char* name = nullptr);
/// Adds a Logical Binary layer to the network.
/// @param descriptor - Description of the Logical Binary layer.
/// @param name - Optional name for the layer.
/// @return - Interface for configuring the layer.
IConnectableLayer* AddLogicalBinaryLayer(const LogicalBinaryDescriptor& descriptor,
const char* name = nullptr);
/// Add a UnidirectionalSequenceLstm layer to the network
/// @param descriptor - Parameters for the UnidirectionalSequenceLstm operation
/// @param params - Weights and biases for the UnidirectionalSequenceLstm
/// @param name - Optional name for the layer
/// @return - Interface for configuring the layer.
IConnectableLayer* AddUnidirectionalSequenceLstmLayer(const UnidirectionalSequenceLstmDescriptor& descriptor,
const LstmInputParams& params,
const char* name = nullptr);
/// Add a ChannelShuffle layer to the network
/// @param descriptor - Parameters for the ChannelShuffle operation
/// @param name - Optional name for the layer
/// @return - Interface for configuring the layer
IConnectableLayer* AddChannelShuffleLayer(const ChannelShuffleDescriptor& descriptor,
const char* name = nullptr);
// The Accept function needs to be wrapped in a no warn macro to avoid deprecation warnings from
// the deprecated ILayerVisitor which is used in the function.
ARMNN_NO_DEPRECATE_WARN_BEGIN
/// Apply a visitor to this layer
ARMNN_DEPRECATED_MSG_REMOVAL_DATE("Accept is deprecated. The ILayerVisitor that works in conjunction with this "
"Accept function is deprecated. Use IStrategy in combination with "
"ExecuteStrategy instead, which is an ABI/API stable version of the "
"visitor pattern.",
"22.05")
void Accept(ILayerVisitor& visitor) const;
ARMNN_NO_DEPRECATE_WARN_END
void ExecuteStrategy(IStrategy& strategy) const;
protected:
~INetwork();
friend void VisitLayersTopologically(const INetwork* inputNetwork, IStrategy& strategy);
friend class TestConnectionPreservation;
friend TensorInfo GetInputTensorInfo(const INetwork* network);
friend IOptimizedNetworkPtr Optimize(const INetwork& network,
const std::vector<BackendId>& backendPreferences,
const IDeviceSpec& deviceSpec,
const OptimizerOptions& options,
Optional<std::vector<std::string>&> messages);
INetwork(NetworkOptions networkOptions = {});
std::unique_ptr<NetworkImpl> pNetworkImpl;
};
namespace experimental
{
class AsyncNetworkImpl;
class WorkingMemHandle;
}
struct BackendSettings;
struct OptimizationResult;
class OptimizedNetworkImpl;
class IProfiler;
class IOptimizedNetwork
{
public:
static void Destroy(IOptimizedNetwork* network);
Status PrintGraph();
Status SerializeToDot(std::ostream& stream) const;
arm::pipe::ProfilingGuid GetGuid() const;
size_t GetNumInputs() const;
size_t GetNumOutputs() const;
// Creates a copy of the IOptimizedNetwork. The IOptimizedNetwork will not be reoptimized,
// the provided ModelOptions will only be used when creating a LoadedNetwork.
IOptimizedNetwork(const IOptimizedNetwork& other, const ModelOptions& modelOptions);
IOptimizedNetwork(std::unique_ptr<Graph> graph);
IOptimizedNetwork(std::unique_ptr<OptimizedNetworkImpl> impl);
~IOptimizedNetwork();
const std::shared_ptr<IProfiler>& GetProfiler() const;
protected:
friend class LoadedNetwork;
friend class experimental::AsyncNetworkImpl;
friend class experimental::WorkingMemHandle;
friend Graph& GetGraphForTesting(IOptimizedNetwork* optNetPtr);
friend ModelOptions& GetModelOptionsForTesting(IOptimizedNetwork* optNetPtr);
friend IOptimizedNetworkPtr Optimize(const INetwork& inNetwork,
const std::vector<BackendId>& backendPreferences,
const IDeviceSpec& deviceSpec,
const OptimizerOptions& options,
Optional<std::vector<std::string>&> messages);
friend IOptimizedNetworkPtr Optimize(const Graph& inGraph,
const std::vector<BackendId>& backendPreferences,
const IDeviceSpec& deviceSpec,
const OptimizerOptions& options,
Optional<std::vector<std::string>&> messages);
IOptimizedNetwork(std::unique_ptr<Graph> graph, const ModelOptions& modelOptions);
std::unique_ptr<OptimizedNetworkImpl> pOptimizedNetworkImpl;
};
/// Create an optimized version of the network
/// @param network INetwork description of the network to be optimized.
/// @param backendPreferences The choice of the backend ordered by user preferences.
/// @param deviceSpec DeviceSpec object as queried from the runtime. See IRuntime::GetDeviceSpec()
/// @param messages If there are failures or warnings a string describing same will be added to the vector
/// @param options OptimizerOptions object with optimizer configuration options
/// @return An IOptimizedNetworkPtr interface to the optimized network, throws an exception derived from
/// armnn::Exception if process fails.
IOptimizedNetworkPtr Optimize(const INetwork& network,
const std::vector<BackendId>& backendPreferences,
const IDeviceSpec& deviceSpec,
const OptimizerOptions& options = OptimizerOptions(),
Optional<std::vector<std::string>&> messages = EmptyOptional());
/// Create an optimized version of the network
/// @param inGraph Graph to be optimized.
/// @param backendPreferences The choice of the backend ordered by user preferences.
/// @param deviceSpec DeviceSpec object as queried from the runtime. See IRuntime::GetDeviceSpec()
/// @param messages If there are failures or warnings a string describing same will be added to the vector
/// @param options OptimizerOptions object with optimizer configuration options
/// @return An IOptimizedNetworkPtr interface to the optimized network, throws an exception derived from
/// armnn::Exception if process fails.
IOptimizedNetworkPtr Optimize(const Graph& inGraph,
const std::vector<BackendId>& backendPreferences,
const IDeviceSpec& deviceSpec,
const OptimizerOptions& options,
Optional<std::vector<std::string>&> messages = EmptyOptional());
} //namespace armnn