QuantizedLstmLayer Class Reference

This layer represents a QuantizedLstm operation. More...

#include <QuantizedLstmLayer.hpp>

Inheritance diagram for QuantizedLstmLayer:

Public Member Functions
virtual std::unique_ptr< IWorkload >	CreateWorkload (const IWorkloadFactory &factory) const override
	Makes a workload for the QuantizedLstm type. More...
QuantizedLstmLayer *	Clone (Graph &graph) const override
	Creates a dynamically-allocated copy of this layer. More...
void	ValidateTensorShapesFromInputs () override
	Check if the input tensor shape(s) will lead to a valid configuration of QuantizedLstmLayer. More...
std::vector< TensorShape >	InferOutputShapes (const std::vector< TensorShape > &inputShapes) const override
	By default returns inputShapes if the number of inputs are equal to number of outputs, otherwise infers the output shapes from given input shapes and layer properties. More...
void	Accept (ILayerVisitor &visitor) const override
	Apply a visitor to this layer. More...
void	ExecuteStrategy (IStrategy &strategy) const override
	Apply a visitor to this layer. More...
Public Member Functions inherited from Layer
	Layer (unsigned int numInputSlots, unsigned int numOutputSlots, LayerType type, const char *name)
	Layer (unsigned int numInputSlots, unsigned int numOutputSlots, LayerType type, DataLayout layout, const char *name)
const std::string &	GetNameStr () const
const OutputHandler &	GetOutputHandler (unsigned int i=0) const
OutputHandler &	GetOutputHandler (unsigned int i=0)
ShapeInferenceMethod	GetShapeInferenceMethod () const
const std::vector< InputSlot > &	GetInputSlots () const
const std::vector< OutputSlot > &	GetOutputSlots () const
std::vector< InputSlot >::iterator	BeginInputSlots ()
std::vector< InputSlot >::iterator	EndInputSlots ()
std::vector< OutputSlot >::iterator	BeginOutputSlots ()
std::vector< OutputSlot >::iterator	EndOutputSlots ()
bool	IsOutputUnconnected ()
void	ResetPriority () const
LayerPriority	GetPriority () const
LayerType	GetType () const override
	Returns the armnn::LayerType of this layer. More...
DataType	GetDataType () const
const BackendId &	GetBackendId () const
void	SetBackendId (const BackendId &id)
virtual void	CreateTensorHandles (const TensorHandleFactoryRegistry &registry, const IWorkloadFactory &factory, const bool IsMemoryManaged=true)
void	VerifyLayerConnections (unsigned int expectedConnections, const CheckLocation &location) const
virtual void	SerializeLayerParameters (ParameterStringifyFunction &fn) const
	Helper to serialize the layer parameters to string. More...
virtual void	ReleaseConstantData ()
template<typename Op >
void	OperateOnConstantTensors (Op op)
const char *	GetName () const override
	Returns the name of the layer. More...
unsigned int	GetNumInputSlots () const override
	Returns the number of connectable input slots. More...
unsigned int	GetNumOutputSlots () const override
	Returns the number of connectable output slots. More...
const InputSlot &	GetInputSlot (unsigned int index) const override
	Get a const input slot handle by slot index. More...
InputSlot &	GetInputSlot (unsigned int index) override
	Get the input slot handle by slot index. More...
const OutputSlot &	GetOutputSlot (unsigned int index=0) const override
	Get the const output slot handle by slot index. More...
OutputSlot &	GetOutputSlot (unsigned int index=0) override
	Get the output slot handle by slot index. More...
void	SetGuid (LayerGuid guid)
LayerGuid	GetGuid () const final
	Returns the unique id of the layer. More...
void	AddRelatedLayerName (const std::string layerName)
const std::list< std::string > &	GetRelatedLayerNames ()
virtual void	Reparent (Graph &dest, std::list< Layer *>::const_iterator iterator)=0
void	BackendSelectionHint (Optional< BackendId > backend) final
	Provide a hint for the optimizer as to which backend to prefer for this layer. More...
Optional< BackendId >	GetBackendHint () const
void	SetShapeInferenceMethod (ShapeInferenceMethod shapeInferenceMethod)
template<typename T >
std::shared_ptr< T >	GetAdditionalInformation () const
void	SetAdditionalInfoForObject (const AdditionalInfoObjectPtr &additionalInfo)

Public Attributes
QuantizedLstmParameters	m_QuantizedLstmParameters

Protected Member Functions
	QuantizedLstmLayer (const char *name)
	Constructor to create a QuantizedLstmLayer. More...
	~QuantizedLstmLayer ()=default
	Default destructor. More...
Layer::ConstantTensors	GetConstantTensorsByRef () override
	Retrieve the handles to the constant values stored by the layer. More...
Protected Member Functions inherited from Layer
virtual	~Layer ()=default
template<typename QueueDescriptor >
void	CollectQueueDescriptorInputs (QueueDescriptor &descriptor, WorkloadInfo &info) const
template<typename QueueDescriptor >
void	CollectQueueDescriptorOutputs (QueueDescriptor &descriptor, WorkloadInfo &info) const
void	ValidateAndCopyShape (const TensorShape &outputShape, const TensorShape &inferredShape, const ShapeInferenceMethod shapeInferenceMethod, const std::string &layerName, const unsigned int outputSlotIndex=0)
void	VerifyShapeInferenceType (const TensorShape &outputShape, ShapeInferenceMethod shapeInferenceMethod)
template<typename QueueDescriptor >
WorkloadInfo	PrepInfoAndDesc (QueueDescriptor &descriptor) const
	Helper function to reduce duplication in *LayerCreateWorkload. More...
template<typename LayerType , typename ... Params>
LayerType *	CloneBase (Graph &graph, Params &&... params) const
void	SetAdditionalInfo (QueueDescriptor &descriptor) const
Protected Member Functions inherited from IConnectableLayer
	~IConnectableLayer ()
	Objects are not deletable via the handle. More...

Additional Inherited Members
Protected Types inherited from Layer
using	ConstantTensors = std::vector< std::reference_wrapper< std::shared_ptr< ConstTensorHandle > >>
Protected Attributes inherited from Layer
AdditionalInfoObjectPtr	m_AdditionalInfoObject
std::vector< OutputHandler >	m_OutputHandlers
ShapeInferenceMethod	m_ShapeInferenceMethod

Detailed Description

This layer represents a QuantizedLstm operation.

Definition at line 45 of file QuantizedLstmLayer.hpp.

Constructor & Destructor Documentation

QuantizedLstmLayer()

QuantizedLstmLayer ( const char *  name )

protected

Constructor to create a QuantizedLstmLayer.

Parameters

[in]

name

Optional name for the layer.

Definition at line 17 of file QuantizedLstmLayer.cpp.

References armnn::QuantizedLstm.

    : Layer(3, 2, LayerType::QuantizedLstm, name)
{
}

~QuantizedLstmLayer()

~QuantizedLstmLayer ( )

protecteddefault

Default destructor.

Member Function Documentation

Accept()

void Accept ( ILayerVisitor &  visitor ) const

overridevirtual

Apply a visitor to this layer.

Implements IConnectableLayer.

Definition at line 172 of file QuantizedLstmLayer.cpp.

References Layer::GetName(), ManagedConstTensorHandle::GetTensorInfo(), QuantizedLstmParameters::m_CellBias, QuantizedLstmInputParams::m_CellBias, QuantizedLstmParameters::m_ForgetGateBias, QuantizedLstmInputParams::m_ForgetGateBias, QuantizedLstmParameters::m_InputGateBias, QuantizedLstmInputParams::m_InputGateBias, QuantizedLstmParameters::m_InputToCellWeights, QuantizedLstmInputParams::m_InputToCellWeights, QuantizedLstmParameters::m_InputToForgetWeights, QuantizedLstmInputParams::m_InputToForgetWeights, QuantizedLstmParameters::m_InputToInputWeights, QuantizedLstmInputParams::m_InputToInputWeights, QuantizedLstmParameters::m_InputToOutputWeights, QuantizedLstmInputParams::m_InputToOutputWeights, QuantizedLstmParameters::m_OutputGateBias, QuantizedLstmInputParams::m_OutputGateBias, QuantizedLstmLayer::m_QuantizedLstmParameters, QuantizedLstmParameters::m_RecurrentToCellWeights, QuantizedLstmInputParams::m_RecurrentToCellWeights, QuantizedLstmParameters::m_RecurrentToForgetWeights, QuantizedLstmInputParams::m_RecurrentToForgetWeights, QuantizedLstmParameters::m_RecurrentToInputWeights, QuantizedLstmInputParams::m_RecurrentToInputWeights, QuantizedLstmParameters::m_RecurrentToOutputWeights, QuantizedLstmInputParams::m_RecurrentToOutputWeights, ManagedConstTensorHandle::Map(), and ILayerVisitor::VisitQuantizedLstmLayer().

{
    QuantizedLstmInputParams inputParams;

    ManagedConstTensorHandle managedInputToInputWeights(m_QuantizedLstmParameters.m_InputToInputWeights);
    ManagedConstTensorHandle managedInputToForgetWeights(m_QuantizedLstmParameters.m_InputToForgetWeights);
    ManagedConstTensorHandle managedInputToCellWeights(m_QuantizedLstmParameters.m_InputToCellWeights);
    ManagedConstTensorHandle managedInputToOutputWeights(m_QuantizedLstmParameters.m_InputToOutputWeights);

    ManagedConstTensorHandle managedRecurrentToInputWeights(m_QuantizedLstmParameters.m_RecurrentToInputWeights);
    ManagedConstTensorHandle managedRecurrentToForgetWeights(m_QuantizedLstmParameters.m_RecurrentToForgetWeights);
    ManagedConstTensorHandle managedRecurrentToCellWeights(m_QuantizedLstmParameters.m_RecurrentToCellWeights);
    ManagedConstTensorHandle managedRecurrentToOutputWeights(m_QuantizedLstmParameters.m_RecurrentToOutputWeights);

    ManagedConstTensorHandle managedInputGateBias(m_QuantizedLstmParameters.m_InputGateBias);
    ManagedConstTensorHandle managedForgetGateBias(m_QuantizedLstmParameters.m_ForgetGateBias);
    ManagedConstTensorHandle managedCellBias(m_QuantizedLstmParameters.m_CellBias);
    ManagedConstTensorHandle managedOutputGateBias(m_QuantizedLstmParameters.m_OutputGateBias);

    // InputToX weight tensors
    ConstTensor inputToInputWeightsTensor;
    if (m_QuantizedLstmParameters.m_InputToInputWeights != nullptr)
    {
        ConstTensor inputToInputWeightsTensorCopy(managedInputToInputWeights.GetTensorInfo(),
                                                  managedInputToInputWeights.Map());
        inputToInputWeightsTensor = inputToInputWeightsTensorCopy;
        inputParams.m_InputToInputWeights = &inputToInputWeightsTensor;
    }

    ConstTensor inputToForgetWeightsTensor;
    if (m_QuantizedLstmParameters.m_InputToForgetWeights != nullptr)
    {
        ConstTensor inputToForgetWeightsTensorCopy(managedInputToForgetWeights.GetTensorInfo(),
                                                   managedInputToForgetWeights.Map());
        inputToForgetWeightsTensor = inputToForgetWeightsTensorCopy;
        inputParams.m_InputToForgetWeights = &inputToForgetWeightsTensor;
    }

    ConstTensor inputToCellWeightsTensor;
    if (m_QuantizedLstmParameters.m_InputToCellWeights != nullptr)
    {
        ConstTensor inputToCellWeightsTensorCopy(managedInputToCellWeights.GetTensorInfo(),
                                                 managedInputToCellWeights.Map());
        inputToCellWeightsTensor = inputToCellWeightsTensorCopy;
        inputParams.m_InputToCellWeights = &inputToCellWeightsTensor;
    }

    ConstTensor inputToOutputWeightsTensor;
    if (m_QuantizedLstmParameters.m_InputToOutputWeights != nullptr)
    {
        ConstTensor inputToOutputWeightsTensorCopy(managedInputToOutputWeights.GetTensorInfo(),
                                                   managedInputToOutputWeights.Map());
        inputToOutputWeightsTensor = inputToOutputWeightsTensorCopy;
        inputParams.m_InputToOutputWeights = &inputToOutputWeightsTensor;
    }

    // RecurrentToX weight tensors
    ConstTensor recurrentToInputWeightsTensor;
    if (m_QuantizedLstmParameters.m_RecurrentToInputWeights != nullptr)
    {
        ConstTensor recurrentToInputWeightsTensorCopy(
                managedRecurrentToInputWeights.GetTensorInfo(),
                managedRecurrentToInputWeights.Map());
        recurrentToInputWeightsTensor = recurrentToInputWeightsTensorCopy;
        inputParams.m_RecurrentToInputWeights = &recurrentToInputWeightsTensor;
    }

    ConstTensor recurrentToForgetWeightsTensor;
    if (m_QuantizedLstmParameters.m_RecurrentToForgetWeights != nullptr)
    {
        ConstTensor recurrentToForgetWeightsTensorCopy(
                managedRecurrentToForgetWeights.GetTensorInfo(),
                managedRecurrentToForgetWeights.Map());
        recurrentToForgetWeightsTensor = recurrentToForgetWeightsTensorCopy;
        inputParams.m_RecurrentToForgetWeights = &recurrentToForgetWeightsTensor;
    }

    ConstTensor recurrentToCellWeightsTensor;
    if (m_QuantizedLstmParameters.m_RecurrentToCellWeights != nullptr)
    {
        ConstTensor recurrentToCellWeightsTensorCopy(
                managedRecurrentToCellWeights.GetTensorInfo(),
                managedRecurrentToCellWeights.Map());
        recurrentToCellWeightsTensor = recurrentToCellWeightsTensorCopy;
        inputParams.m_RecurrentToCellWeights = &recurrentToCellWeightsTensor;
    }

    ConstTensor recurrentToOutputWeightsTensor;
    if (m_QuantizedLstmParameters.m_RecurrentToOutputWeights != nullptr)
    {
        ConstTensor recurrentToOutputWeightsTensorCopy(
                managedRecurrentToOutputWeights.GetTensorInfo(),
                managedRecurrentToOutputWeights.Map());
        recurrentToOutputWeightsTensor = recurrentToOutputWeightsTensorCopy;
        inputParams.m_RecurrentToOutputWeights = &recurrentToOutputWeightsTensor;
    }

    // Bias tensors
    ConstTensor inputGateBiasTensor;
    if (m_QuantizedLstmParameters.m_InputGateBias != nullptr)
    {
        ConstTensor inputGateBiasTensorCopy(managedInputGateBias.GetTensorInfo(),
                                            managedInputGateBias.Map());
        inputGateBiasTensor = inputGateBiasTensorCopy;
        inputParams.m_InputGateBias = &inputGateBiasTensor;
    }

    ConstTensor forgetGateBiasTensor;
    if (m_QuantizedLstmParameters.m_ForgetGateBias != nullptr)
    {
        ConstTensor forgetGateBiasTensorCopy(managedForgetGateBias.GetTensorInfo(),
                                             managedForgetGateBias.Map());
        forgetGateBiasTensor = forgetGateBiasTensorCopy;
        inputParams.m_ForgetGateBias = &forgetGateBiasTensor;
    }

    ConstTensor cellBiasTensor;
    if (m_QuantizedLstmParameters.m_CellBias != nullptr)
    {
        ConstTensor cellBiasTensorCopy(managedCellBias.GetTensorInfo(),
                                       managedCellBias.Map());
        cellBiasTensor = cellBiasTensorCopy;
        inputParams.m_CellBias = &cellBiasTensor;
    }

    ConstTensor outputGateBiasTensor;
    if (m_QuantizedLstmParameters.m_OutputGateBias != nullptr)
    {
        ConstTensor outputGateBiasCopy(managedOutputGateBias.GetTensorInfo(),
                                       managedOutputGateBias.Map());
        outputGateBiasTensor = outputGateBiasCopy;
        inputParams.m_OutputGateBias = &outputGateBiasTensor;
    }

    visitor.VisitQuantizedLstmLayer(this, inputParams, GetName());
}

Clone()

QuantizedLstmLayer * Clone ( Graph &  graph ) const

overridevirtual

Creates a dynamically-allocated copy of this layer.

Parameters

[in]

graph

The graph into which this layer is being cloned.

Implements Layer.

Definition at line 47 of file QuantizedLstmLayer.cpp.

References Layer::GetName(), QuantizedLstmParameters::m_CellBias, QuantizedLstmParameters::m_ForgetGateBias, QuantizedLstmParameters::m_InputGateBias, QuantizedLstmParameters::m_InputToCellWeights, QuantizedLstmParameters::m_InputToForgetWeights, QuantizedLstmParameters::m_InputToInputWeights, QuantizedLstmParameters::m_InputToOutputWeights, QuantizedLstmParameters::m_OutputGateBias, QuantizedLstmLayer::m_QuantizedLstmParameters, QuantizedLstmParameters::m_RecurrentToCellWeights, QuantizedLstmParameters::m_RecurrentToForgetWeights, QuantizedLstmParameters::m_RecurrentToInputWeights, and QuantizedLstmParameters::m_RecurrentToOutputWeights.

{
    auto layer = CloneBase<QuantizedLstmLayer>(graph, GetName());

    layer->m_QuantizedLstmParameters.m_InputToInputWeights = m_QuantizedLstmParameters.m_InputToInputWeights ?
            m_QuantizedLstmParameters.m_InputToInputWeights : nullptr;
    layer->m_QuantizedLstmParameters.m_InputToForgetWeights = m_QuantizedLstmParameters.m_InputToForgetWeights ?
            m_QuantizedLstmParameters.m_InputToForgetWeights : nullptr;
    layer->m_QuantizedLstmParameters.m_InputToCellWeights = m_QuantizedLstmParameters.m_InputToCellWeights ?
            m_QuantizedLstmParameters.m_InputToCellWeights : nullptr;
    layer->m_QuantizedLstmParameters.m_InputToOutputWeights = m_QuantizedLstmParameters.m_InputToOutputWeights ?
            m_QuantizedLstmParameters.m_InputToOutputWeights : nullptr;

    layer->m_QuantizedLstmParameters.m_RecurrentToInputWeights = m_QuantizedLstmParameters.m_RecurrentToInputWeights ?
            m_QuantizedLstmParameters.m_RecurrentToInputWeights : nullptr;
    layer->m_QuantizedLstmParameters.m_RecurrentToForgetWeights = m_QuantizedLstmParameters.m_RecurrentToForgetWeights
            ? m_QuantizedLstmParameters.m_RecurrentToForgetWeights : nullptr;
    layer->m_QuantizedLstmParameters.m_RecurrentToCellWeights = m_QuantizedLstmParameters.m_RecurrentToCellWeights ?
            m_QuantizedLstmParameters.m_RecurrentToCellWeights : nullptr;
    layer->m_QuantizedLstmParameters.m_RecurrentToOutputWeights = m_QuantizedLstmParameters.m_RecurrentToOutputWeights
            ? m_QuantizedLstmParameters.m_RecurrentToOutputWeights : nullptr;

    layer->m_QuantizedLstmParameters.m_InputGateBias = m_QuantizedLstmParameters.m_InputGateBias ?
            m_QuantizedLstmParameters.m_InputGateBias : nullptr;
    layer->m_QuantizedLstmParameters.m_ForgetGateBias = m_QuantizedLstmParameters.m_ForgetGateBias ?
            m_QuantizedLstmParameters.m_ForgetGateBias : nullptr;
    layer->m_QuantizedLstmParameters.m_CellBias = m_QuantizedLstmParameters.m_CellBias ?
            m_QuantizedLstmParameters.m_CellBias : nullptr;
    layer->m_QuantizedLstmParameters.m_OutputGateBias = m_QuantizedLstmParameters.m_OutputGateBias ?
            m_QuantizedLstmParameters.m_OutputGateBias : nullptr;

    return std::move(layer);
}

CreateWorkload()

std::unique_ptr< IWorkload > CreateWorkload ( const IWorkloadFactory &  factory ) const

overridevirtual

Makes a workload for the QuantizedLstm type.

Parameters

[in]	graph	The graph where this layer can be found.
[in]	factory	The workload factory which will create the workload.

Returns

A pointer to the created workload, or nullptr if not created.

Implements Layer.

Definition at line 22 of file QuantizedLstmLayer.cpp.

References IWorkloadFactory::CreateQuantizedLstm(), QuantizedLstmParameters::m_CellBias, QuantizedLstmQueueDescriptor::m_CellBias, QuantizedLstmParameters::m_ForgetGateBias, QuantizedLstmQueueDescriptor::m_ForgetGateBias, QuantizedLstmParameters::m_InputGateBias, QuantizedLstmQueueDescriptor::m_InputGateBias, QuantizedLstmParameters::m_InputToCellWeights, QuantizedLstmQueueDescriptor::m_InputToCellWeights, QuantizedLstmParameters::m_InputToForgetWeights, QuantizedLstmQueueDescriptor::m_InputToForgetWeights, QuantizedLstmParameters::m_InputToInputWeights, QuantizedLstmQueueDescriptor::m_InputToInputWeights, QuantizedLstmParameters::m_InputToOutputWeights, QuantizedLstmQueueDescriptor::m_InputToOutputWeights, QuantizedLstmParameters::m_OutputGateBias, QuantizedLstmQueueDescriptor::m_OutputGateBias, QuantizedLstmLayer::m_QuantizedLstmParameters, QuantizedLstmParameters::m_RecurrentToCellWeights, QuantizedLstmQueueDescriptor::m_RecurrentToCellWeights, QuantizedLstmParameters::m_RecurrentToForgetWeights, QuantizedLstmQueueDescriptor::m_RecurrentToForgetWeights, QuantizedLstmParameters::m_RecurrentToInputWeights, QuantizedLstmQueueDescriptor::m_RecurrentToInputWeights, QuantizedLstmParameters::m_RecurrentToOutputWeights, QuantizedLstmQueueDescriptor::m_RecurrentToOutputWeights, Layer::PrepInfoAndDesc(), and Layer::SetAdditionalInfo().

{
    QuantizedLstmQueueDescriptor descriptor;

    // QuantizedLstmLayer parameters - there are no optional params
    descriptor.m_InputToInputWeights  = m_QuantizedLstmParameters.m_InputToInputWeights.get();
    descriptor.m_InputToForgetWeights = m_QuantizedLstmParameters.m_InputToForgetWeights.get();
    descriptor.m_InputToCellWeights   = m_QuantizedLstmParameters.m_InputToCellWeights.get();
    descriptor.m_InputToOutputWeights = m_QuantizedLstmParameters.m_InputToOutputWeights.get();

    descriptor.m_RecurrentToInputWeights  = m_QuantizedLstmParameters.m_RecurrentToInputWeights.get();
    descriptor.m_RecurrentToForgetWeights = m_QuantizedLstmParameters.m_RecurrentToForgetWeights.get();
    descriptor.m_RecurrentToCellWeights   = m_QuantizedLstmParameters.m_RecurrentToCellWeights.get();
    descriptor.m_RecurrentToOutputWeights = m_QuantizedLstmParameters.m_RecurrentToOutputWeights.get();

    descriptor.m_InputGateBias  = m_QuantizedLstmParameters.m_InputGateBias.get();
    descriptor.m_ForgetGateBias = m_QuantizedLstmParameters.m_ForgetGateBias.get();
    descriptor.m_CellBias       = m_QuantizedLstmParameters.m_CellBias.get();
    descriptor.m_OutputGateBias = m_QuantizedLstmParameters.m_OutputGateBias.get();

    SetAdditionalInfo(descriptor);

    return factory.CreateQuantizedLstm(descriptor, PrepInfoAndDesc(descriptor));
}

ExecuteStrategy()

void ExecuteStrategy ( IStrategy &  strategy ) const

overridevirtual

Apply a visitor to this layer.

Reimplemented from Layer.

Definition at line 309 of file QuantizedLstmLayer.cpp.

References IStrategy::ExecuteStrategy(), Layer::GetName(), ManagedConstTensorHandle::GetTensorInfo(), QuantizedLstmParameters::m_CellBias, QuantizedLstmParameters::m_ForgetGateBias, QuantizedLstmParameters::m_InputGateBias, QuantizedLstmParameters::m_InputToCellWeights, QuantizedLstmParameters::m_InputToForgetWeights, QuantizedLstmParameters::m_InputToInputWeights, QuantizedLstmParameters::m_InputToOutputWeights, QuantizedLstmParameters::m_OutputGateBias, QuantizedLstmLayer::m_QuantizedLstmParameters, QuantizedLstmParameters::m_RecurrentToCellWeights, QuantizedLstmParameters::m_RecurrentToForgetWeights, QuantizedLstmParameters::m_RecurrentToInputWeights, QuantizedLstmParameters::m_RecurrentToOutputWeights, and ManagedConstTensorHandle::Map().

{
    std::vector<ConstTensor> constTensors;

    ManagedConstTensorHandle managedInputToInputWeights(m_QuantizedLstmParameters.m_InputToInputWeights);
    ManagedConstTensorHandle managedInputToForgetWeights(m_QuantizedLstmParameters.m_InputToForgetWeights);
    ManagedConstTensorHandle managedInputToCellWeights(m_QuantizedLstmParameters.m_InputToCellWeights);
    ManagedConstTensorHandle managedInputToOutputWeights(m_QuantizedLstmParameters.m_InputToOutputWeights);

    ManagedConstTensorHandle managedRecurrentToInputWeights(m_QuantizedLstmParameters.m_RecurrentToInputWeights);
    ManagedConstTensorHandle managedRecurrentToForgetWeights(m_QuantizedLstmParameters.m_RecurrentToForgetWeights);
    ManagedConstTensorHandle managedRecurrentToCellWeights(m_QuantizedLstmParameters.m_RecurrentToCellWeights);
    ManagedConstTensorHandle managedRecurrentToOutputWeights(m_QuantizedLstmParameters.m_RecurrentToOutputWeights);

    ManagedConstTensorHandle managedInputGateBias(m_QuantizedLstmParameters.m_InputGateBias);
    ManagedConstTensorHandle managedForgetGateBias(m_QuantizedLstmParameters.m_ForgetGateBias);
    ManagedConstTensorHandle managedCellBias(m_QuantizedLstmParameters.m_CellBias);
    ManagedConstTensorHandle managedOutputGateBias(m_QuantizedLstmParameters.m_OutputGateBias);

    // InputToX weight tensors
    if (m_QuantizedLstmParameters.m_InputToInputWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedInputToInputWeights.GetTensorInfo(),
                                              managedInputToInputWeights.Map()));
    }

    if (m_QuantizedLstmParameters.m_InputToForgetWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedInputToForgetWeights.GetTensorInfo(),
                                              managedInputToForgetWeights.Map()));
    }

    if (m_QuantizedLstmParameters.m_InputToCellWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedInputToCellWeights.GetTensorInfo(),
                                              managedInputToCellWeights.Map()));
    }

    if (m_QuantizedLstmParameters.m_InputToOutputWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedInputToOutputWeights.GetTensorInfo(),
                                              managedInputToOutputWeights.Map()));
    }

    // RecurrentToX weight tensors
    if (m_QuantizedLstmParameters.m_RecurrentToInputWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(
                managedRecurrentToInputWeights.GetTensorInfo(),
                managedRecurrentToInputWeights.Map()));
    }

    if (m_QuantizedLstmParameters.m_RecurrentToForgetWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(
                managedRecurrentToForgetWeights.GetTensorInfo(),
                managedRecurrentToForgetWeights.Map()));
    }

    if (m_QuantizedLstmParameters.m_RecurrentToCellWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(
                managedRecurrentToCellWeights.GetTensorInfo(),
                managedRecurrentToCellWeights.Map()));
    }

    if (m_QuantizedLstmParameters.m_RecurrentToOutputWeights != nullptr)
    {
        constTensors.emplace_back(ConstTensor(
                managedRecurrentToOutputWeights.GetTensorInfo(),
                managedRecurrentToOutputWeights.Map()));
    }

    // Bias tensors
    if (m_QuantizedLstmParameters.m_InputGateBias != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedInputGateBias.GetTensorInfo(),
                                              managedInputGateBias.Map()));
    }

    if (m_QuantizedLstmParameters.m_ForgetGateBias != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedForgetGateBias.GetTensorInfo(),
                                              managedForgetGateBias.Map()));
    }

    if (m_QuantizedLstmParameters.m_CellBias != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedCellBias.GetTensorInfo(),
                                              managedCellBias.Map()));
    }

    if (m_QuantizedLstmParameters.m_OutputGateBias != nullptr)
    {
        constTensors.emplace_back(ConstTensor(managedOutputGateBias.GetTensorInfo(),
                                              managedOutputGateBias.Map()));
    }


    strategy.ExecuteStrategy(this, BaseDescriptor(), constTensors, GetName());
}

GetConstantTensorsByRef()

Layer::ConstantTensors GetConstantTensorsByRef ( )

overrideprotectedvirtual

Retrieve the handles to the constant values stored by the layer.

Returns

A vector of the constant tensors stored by this layer.

Reimplemented from Layer.

Definition at line 151 of file QuantizedLstmLayer.cpp.

References QuantizedLstmParameters::m_CellBias, QuantizedLstmParameters::m_ForgetGateBias, QuantizedLstmParameters::m_InputGateBias, QuantizedLstmParameters::m_InputToCellWeights, QuantizedLstmParameters::m_InputToForgetWeights, QuantizedLstmParameters::m_InputToInputWeights, QuantizedLstmParameters::m_InputToOutputWeights, QuantizedLstmParameters::m_OutputGateBias, QuantizedLstmLayer::m_QuantizedLstmParameters, QuantizedLstmParameters::m_RecurrentToCellWeights, QuantizedLstmParameters::m_RecurrentToForgetWeights, QuantizedLstmParameters::m_RecurrentToInputWeights, and QuantizedLstmParameters::m_RecurrentToOutputWeights.

{
    return
    {
        m_QuantizedLstmParameters.m_InputToInputWeights,
        m_QuantizedLstmParameters.m_InputToForgetWeights,
        m_QuantizedLstmParameters.m_InputToCellWeights,
        m_QuantizedLstmParameters.m_InputToOutputWeights,

        m_QuantizedLstmParameters.m_RecurrentToInputWeights,
        m_QuantizedLstmParameters.m_RecurrentToForgetWeights,
        m_QuantizedLstmParameters.m_RecurrentToCellWeights,
        m_QuantizedLstmParameters.m_RecurrentToOutputWeights,

        m_QuantizedLstmParameters.m_InputGateBias,
        m_QuantizedLstmParameters.m_ForgetGateBias,
        m_QuantizedLstmParameters.m_CellBias,
        m_QuantizedLstmParameters.m_OutputGateBias
    };
}

InferOutputShapes()

std::vector< TensorShape > InferOutputShapes ( const std::vector< TensorShape > &  inputShapes ) const

overridevirtual

By default returns inputShapes if the number of inputs are equal to number of outputs, otherwise infers the output shapes from given input shapes and layer properties.

Parameters

[in]

inputShapes

The input shapes layer has.

Returns

A vector to the inferred output shape.

Reimplemented from Layer.

Definition at line 81 of file QuantizedLstmLayer.cpp.

References ARMNN_ASSERT.

Referenced by QuantizedLstmInferOutputShapeImpl(), and QuantizedLstmLayer::ValidateTensorShapesFromInputs().

{
    ARMNN_ASSERT(inputShapes.size() == 3);

    // Get input values for validation
    unsigned int numBatches = inputShapes[0][0];
    unsigned int outputSize = inputShapes[1][1];

    std::vector<TensorShape> outShapes;
    outShapes.push_back(TensorShape({numBatches, outputSize})); // cellStateOut
    outShapes.push_back(TensorShape({numBatches, outputSize})); // output

    return outShapes;
}

ValidateTensorShapesFromInputs()

void ValidateTensorShapesFromInputs ( )

overridevirtual

Check if the input tensor shape(s) will lead to a valid configuration of QuantizedLstmLayer.

Parameters

[in]

shapeInferenceMethod

Indicates if output shape shall be overwritten or just validated.

Implements Layer.

Definition at line 96 of file QuantizedLstmLayer.cpp.

References ARMNN_ASSERT, ARMNN_ASSERT_MSG, CHECK_LOCATION, InputSlot::GetConnection(), Layer::GetInputSlot(), Layer::GetOutputSlot(), TensorInfo::GetShape(), armnn::GetTensorInfo(), IOutputSlot::GetTensorInfo(), OutputSlot::GetTensorInfo(), QuantizedLstmLayer::InferOutputShapes(), QuantizedLstmParameters::m_CellBias, QuantizedLstmParameters::m_ForgetGateBias, QuantizedLstmParameters::m_InputGateBias, QuantizedLstmParameters::m_InputToCellWeights, QuantizedLstmParameters::m_InputToForgetWeights, QuantizedLstmParameters::m_InputToInputWeights, QuantizedLstmParameters::m_InputToOutputWeights, QuantizedLstmParameters::m_OutputGateBias, QuantizedLstmLayer::m_QuantizedLstmParameters, QuantizedLstmParameters::m_RecurrentToCellWeights, QuantizedLstmParameters::m_RecurrentToForgetWeights, QuantizedLstmParameters::m_RecurrentToInputWeights, QuantizedLstmParameters::m_RecurrentToOutputWeights, Layer::m_ShapeInferenceMethod, Layer::ValidateAndCopyShape(), Layer::VerifyLayerConnections(), and Layer::VerifyShapeInferenceType().

{
    VerifyLayerConnections(3, CHECK_LOCATION());

    const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();

    VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);

    auto inferredShapes = InferOutputShapes(
    {
        GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape(), // input
        GetInputSlot(1).GetConnection()->GetTensorInfo().GetShape(), // previousCellStateIn
        GetInputSlot(2).GetConnection()->GetTensorInfo().GetShape()  // previousOutputIn
    });

    ARMNN_ASSERT(inferredShapes.size() == 2);

    // Check weights and bias for nullptr
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_InputToInputWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_InputToInputWeights should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_InputToForgetWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_InputToForgetWeights should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_InputToCellWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_InputToCellWeights should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_InputToOutputWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_InputToOutputWeights should not be null.");

    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_RecurrentToInputWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_RecurrentToInputWeights should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_RecurrentToForgetWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_RecurrentToForgetWeights should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_RecurrentToCellWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_RecurrentToCellWeights should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_RecurrentToOutputWeights != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_RecurrentToOutputWeights should not be null.");

    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_InputGateBias != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_InputGateBias should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_ForgetGateBias != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_ForgetGateBias should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_CellBias != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_CellBias should not be null.");
    ARMNN_ASSERT_MSG(m_QuantizedLstmParameters.m_OutputGateBias != nullptr,
                     "QuantizedLstmLayer: m_QuantizedLstmParameters.m_OutputGateBias should not be null.");

    // Check output TensorShape(s) match inferred shape
    ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "QuantizedLstmLayer");

    ValidateAndCopyShape(GetOutputSlot(1).GetTensorInfo().GetShape(),
                         inferredShapes[1],
                         m_ShapeInferenceMethod,
                         "QuantizedLstmLayer",
                         1);
}

Member Data Documentation

m_QuantizedLstmParameters

QuantizedLstmParameters m_QuantizedLstmParameters

Definition at line 49 of file QuantizedLstmLayer.hpp.

Referenced by QuantizedLstmLayer::Accept(), NetworkImpl::AddQuantizedLstmLayer(), QuantizedLstmLayer::Clone(), QuantizedLstmLayer::CreateWorkload(), QuantizedLstmLayer::ExecuteStrategy(), QuantizedLstmLayer::GetConstantTensorsByRef(), and QuantizedLstmLayer::ValidateTensorShapesFromInputs().

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The documentation for this class was generated from the following files:

• src/armnn/layers/QuantizedLstmLayer.hpp
• src/armnn/layers/QuantizedLstmLayer.cpp