NeonTensorHandleFactory Class Reference

#include <NeonTensorHandleFactory.hpp>

Inheritance diagram for NeonTensorHandleFactory:

Collaboration diagram for NeonTensorHandleFactory:

Public Member Functions
	NeonTensorHandleFactory (std::weak_ptr< NeonMemoryManager > mgr)
std::unique_ptr< ITensorHandle >	CreateSubTensorHandle (ITensorHandle &parent, const TensorShape &subTensorShape, const unsigned int *subTensorOrigin) const override
std::unique_ptr< ITensorHandle >	CreateTensorHandle (const TensorInfo &tensorInfo) const override
std::unique_ptr< ITensorHandle >	CreateTensorHandle (const TensorInfo &tensorInfo, DataLayout dataLayout) const override
std::unique_ptr< ITensorHandle >	CreateTensorHandle (const TensorInfo &tensorInfo, const bool IsMemoryManaged) const override
	Utility Functions for backends which require TensorHandles to have unmanaged memory.
std::unique_ptr< ITensorHandle >	CreateTensorHandle (const TensorInfo &tensorInfo, DataLayout dataLayout, const bool IsMemoryManaged=true) const override
const FactoryId &	GetId () const override
bool	SupportsInPlaceComputation () const override
bool	SupportsSubTensors () const override
MemorySourceFlags	GetExportFlags () const override
MemorySourceFlags	GetImportFlags () const override
std::vector< Capability >	GetCapabilities (const IConnectableLayer *layer, const IConnectableLayer *connectedLayer, CapabilityClass capabilityClass) override
Public Member Functions inherited from ITensorHandleFactory
virtual	~ITensorHandleFactory ()
	Some TensorHandleFactory decisions are deferred to run-time.
virtual bool	SupportsMapUnmap () const

Static Public Member Functions
static const FactoryId &	GetIdStatic ()

Additional Inherited Members
Public Types inherited from ITensorHandleFactory
using	FactoryId = std::string
Static Public Attributes inherited from ITensorHandleFactory
static const FactoryId	LegacyFactoryId = "armnn_legacy_factory"
static const FactoryId	DeferredFactoryId = "armnn_deferred_factory"
	Use the workload factory to create the tensor handle.

Detailed Description

Definition at line 34 of file NeonTensorHandleFactory.hpp.

Constructor & Destructor Documentation

NeonTensorHandleFactory()

NeonTensorHandleFactory ( std::weak_ptr< NeonMemoryManager > mgr )

inline

Definition at line 37 of file NeonTensorHandleFactory.hpp.

                            : m_MemoryManager(mgr),
                              m_ImportFlags(static_cast<MemorySourceFlags>(MemorySource::Malloc)),
                              m_ExportFlags(static_cast<MemorySourceFlags>(MemorySource::Malloc))
    {}

References armnn::Malloc.

Member Function Documentation

CreateSubTensorHandle()

std::unique_ptr< ITensorHandle > CreateSubTensorHandle ( ITensorHandle & parent, const TensorShape & subTensorShape, const unsigned int * subTensorOrigin ) const

overridevirtual

Implements ITensorHandleFactory.

Definition at line 20 of file NeonTensorHandleFactory.cpp.

{
    const arm_compute::TensorShape shape = armcomputetensorutils::BuildArmComputeTensorShape(subTensorShape);
 
    arm_compute::Coordinates coords;
    coords.set_num_dimensions(subTensorShape.GetNumDimensions());
    for (unsigned int i = 0; i < subTensorShape.GetNumDimensions(); ++i)
    {
        // Arm compute indexes tensor coords in reverse order.
        unsigned int revertedIndex = subTensorShape.GetNumDimensions() - i - 1;
        coords.set(i, armnn::numeric_cast<int>(subTensorOrigin[revertedIndex]));
    }
 
    const arm_compute::TensorShape parentShape = armcomputetensorutils::BuildArmComputeTensorShape(parent.GetShape());
 
    if (!::arm_compute::error_on_invalid_subtensor(__func__, __FILE__, __LINE__, parentShape, coords, shape))
    {
        return nullptr;
    }
 
    return std::make_unique<NeonSubTensorHandle>(
            PolymorphicDowncast<IAclTensorHandle*>(&parent), shape, coords);
}

References TensorShape::GetNumDimensions(), ITensorHandle::GetShape(), armnn::numeric_cast(), and armnn::PolymorphicDowncast().

CreateTensorHandle() [1/4]

std::unique_ptr< ITensorHandle > CreateTensorHandle ( const TensorInfo & tensorInfo ) const

overridevirtual

Implements ITensorHandleFactory.

Definition at line 47 of file NeonTensorHandleFactory.cpp.

{
    return NeonTensorHandleFactory::CreateTensorHandle(tensorInfo, true);
}

References CreateTensorHandle().

Referenced by CreateTensorHandle(), and CreateTensorHandle().

CreateTensorHandle() [2/4]

std::unique_ptr< ITensorHandle > CreateTensorHandle ( const TensorInfo & tensorInfo, const bool IsMemoryManaged ) const

overridevirtual

Utility Functions for backends which require TensorHandles to have unmanaged memory.

These should be overloaded if required to facilitate direct import of input tensors and direct export of output tensors.

Reimplemented from ITensorHandleFactory.

Definition at line 58 of file NeonTensorHandleFactory.cpp.

{
    auto tensorHandle = std::make_unique<NeonTensorHandle>(tensorInfo);
    if (IsMemoryManaged)
    {
        tensorHandle->SetMemoryGroup(m_MemoryManager->GetInterLayerMemoryGroup());
    }
    // If we are not Managing the Memory then we must be importing
    tensorHandle->SetImportEnabledFlag(!IsMemoryManaged);
    tensorHandle->SetImportFlags(GetImportFlags());
 
    return tensorHandle;
}

References GetImportFlags().

CreateTensorHandle() [3/4]

std::unique_ptr< ITensorHandle > CreateTensorHandle ( const TensorInfo & tensorInfo, DataLayout dataLayout ) const

overridevirtual

Implements ITensorHandleFactory.

Definition at line 52 of file NeonTensorHandleFactory.cpp.

{
    return NeonTensorHandleFactory::CreateTensorHandle(tensorInfo, dataLayout, true);
}

References CreateTensorHandle().

CreateTensorHandle() [4/4]

std::unique_ptr< ITensorHandle > CreateTensorHandle ( const TensorInfo & tensorInfo, DataLayout dataLayout, const bool IsMemoryManaged = true ) const

overridevirtual

Reimplemented from ITensorHandleFactory.

Definition at line 73 of file NeonTensorHandleFactory.cpp.

{
    auto tensorHandle = std::make_unique<NeonTensorHandle>(tensorInfo, dataLayout);
    if (IsMemoryManaged)
    {
        tensorHandle->SetMemoryGroup(m_MemoryManager->GetInterLayerMemoryGroup());
    }
    // If we are not Managing the Memory then we must be importing
    tensorHandle->SetImportEnabledFlag(!IsMemoryManaged);
    tensorHandle->SetImportFlags(GetImportFlags());
 
    return tensorHandle;
}

References GetImportFlags().

GetCapabilities()

std::vector< Capability > GetCapabilities ( const IConnectableLayer * layer, const IConnectableLayer * connectedLayer, CapabilityClass capabilityClass )

overridevirtual

Reimplemented from ITensorHandleFactory.

Definition at line 120 of file NeonTensorHandleFactory.cpp.

{
    IgnoreUnused(connectedLayer);
    std::vector<Capability> capabilities;
    if (capabilityClass == CapabilityClass::PaddingRequired)
    {
        auto search = paddingRequiredLayers.find((PolymorphicDowncast<const Layer*>(layer))->GetType());
        if ( search != paddingRequiredLayers.end())
        {
            Capability paddingCapability(CapabilityClass::PaddingRequired, true);
            capabilities.push_back(paddingCapability);
        }
    }
    return capabilities;
}

References armnn::IgnoreUnused(), armnn::PaddingRequired, armnn::paddingRequiredLayers, and armnn::PolymorphicDowncast().

GetExportFlags()

MemorySourceFlags GetExportFlags ( ) const

overridevirtual

Reimplemented from ITensorHandleFactory.

Definition at line 110 of file NeonTensorHandleFactory.cpp.

{
    return m_ExportFlags;
}

GetId()

const FactoryId & GetId ( ) const

overridevirtual

Implements ITensorHandleFactory.

Definition at line 95 of file NeonTensorHandleFactory.cpp.

{
    return GetIdStatic();
}

References GetIdStatic().

GetIdStatic()

const FactoryId & GetIdStatic ( )

static

Definition at line 89 of file NeonTensorHandleFactory.cpp.

{
    static const FactoryId s_Id(NeonTensorHandleFactoryId());
    return s_Id;
}

References armnn::NeonTensorHandleFactoryId().

Referenced by NeonBackend::GetHandleFactoryPreferences(), and GetId().

GetImportFlags()

MemorySourceFlags GetImportFlags ( ) const

overridevirtual

Reimplemented from ITensorHandleFactory.

Definition at line 115 of file NeonTensorHandleFactory.cpp.

{
    return m_ImportFlags;
}

Referenced by CreateTensorHandle(), and CreateTensorHandle().

SupportsInPlaceComputation()

bool SupportsInPlaceComputation ( ) const

overridevirtual

Reimplemented from ITensorHandleFactory.

Definition at line 100 of file NeonTensorHandleFactory.cpp.

{
    return true;
}

SupportsSubTensors()

bool SupportsSubTensors ( ) const

overridevirtual

Implements ITensorHandleFactory.

Definition at line 105 of file NeonTensorHandleFactory.cpp.

{
    return false;
}

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

• src/backends/neon/NeonTensorHandleFactory.hpp
• src/backends/neon/NeonTensorHandleFactory.cpp