RefBackend Class Reference

#include <RefBackend.hpp>

Inheritance diagram for RefBackend:

Public Member Functions
	RefBackend ()=default
	~RefBackend ()=default
const BackendId &	GetId () const override
IBackendInternal::IMemoryManagerUniquePtr	CreateMemoryManager () const override
IBackendInternal::IWorkloadFactoryPtr	CreateWorkloadFactory (const IBackendInternal::IMemoryManagerSharedPtr &memoryManager=nullptr) const override
IBackendInternal::IWorkloadFactoryPtr	CreateWorkloadFactory (class TensorHandleFactoryRegistry &tensorHandleFactoryRegistry) const override
IBackendInternal::IBackendContextPtr	CreateBackendContext (const IRuntime::CreationOptions &) const override
	Create the runtime context of the backend. More...
IBackendInternal::IBackendProfilingContextPtr	CreateBackendProfilingContext (const IRuntime::CreationOptions &creationOptions, IBackendProfilingPtr &backendProfiling) override
	Create context specifically used for profiling interaction from backends. More...
IBackendInternal::Optimizations	GetOptimizations () const override
IBackendInternal::ILayerSupportSharedPtr	GetLayerSupport () const override
OptimizationViews	OptimizeSubgraphView (const SubgraphView &subgraph) const override
std::vector< ITensorHandleFactory::FactoryId >	GetHandleFactoryPreferences () const override
	(Optional) Returns a vector of supported TensorHandleFactory ids in preference order. More...
void	RegisterTensorHandleFactories (class TensorHandleFactoryRegistry &registry) override
	(Optional) Register TensorHandleFactories Either this method or CreateMemoryManager() and IWorkloadFactory::CreateTensor()/IWorkloadFactory::CreateSubtensor() methods must be implemented. More...
Public Member Functions inherited from IBackendInternal
	~IBackendInternal () override=default
	Allow backends created by the factory function to be destroyed through IBackendInternal. More...
virtual ISubGraphConverterPtr	CreateSubGraphConverter (const std::shared_ptr< SubGraph > &subGraph) const
virtual SubGraphUniquePtr	OptimizeSubGraph (const SubGraph &subGraph, bool &optimizationAttempted) const
bool	SupportsTensorAllocatorAPI () const
ITensorHandleFactory::FactoryId	GetBackwardCompatibleFavoriteHandleFactory ()

Static Public Member Functions
static const BackendId &	GetIdStatic ()
Static Public Member Functions inherited from IBackendInternal
static constexpr BackendVersion	GetApiVersion ()
	Returns the version of the Backend API. More...

Additional Inherited Members
Public Types inherited from IBackendInternal
using	IWorkloadFactoryPtr = std::unique_ptr< IWorkloadFactory >
using	IBackendContextPtr = std::unique_ptr< IBackendContext >
using	IBackendProfilingContextPtr = std::shared_ptr< armnn::profiling::IBackendProfilingContext >
	This is the bridge between backend and backend profiling we'll keep it in the backend namespace. More...
using	IBackendProfilingPtr = std::unique_ptr< armnn::profiling::IBackendProfiling >
using	OptimizationPtr = std::unique_ptr< Optimization >
using	Optimizations = std::vector< OptimizationPtr >
using	ILayerSupportSharedPtr = std::shared_ptr< ILayerSupport >
using	IMemoryManagerUniquePtr = std::unique_ptr< IMemoryManager >
using	IMemoryManagerSharedPtr = std::shared_ptr< IMemoryManager >
using	GraphUniquePtr = std::unique_ptr< Graph >
using	SubgraphViewUniquePtr = std::unique_ptr< SubgraphView >
using	supported = std::unique_ptr< ISubGraphConverter >
using	instead = std::unique_ptr< SubGraph >
Protected Member Functions inherited from IBackendInternal
	IBackendInternal ()=default
	Creation must be done through a specific backend interface. More...
Protected Member Functions inherited from IBackend
	IBackend ()
virtual	~IBackend ()

Detailed Description

Definition at line 12 of file RefBackend.hpp.

Constructor & Destructor Documentation

RefBackend()

RefBackend ( )

default

~RefBackend()

~RefBackend ( )

default

Member Function Documentation

CreateBackendContext()

IBackendInternal::IBackendContextPtr CreateBackendContext ( const IRuntime::CreationOptions &  ) const

overridevirtual

Create the runtime context of the backend.

Implementations may return a default-constructed IBackendContextPtr if no context is needed at runtime. Implementations must throw BackendUnavailableException if the backend cannot be used (for example, necessary accelerator hardware is not present). The default implementation always returns a default-constructed pointer.

Reimplemented from IBackendInternal.

Definition at line 46 of file RefBackend.cpp.

Referenced by RefBackend::GetId().

{
    return IBackendContextPtr{};
}

CreateBackendProfilingContext()

IBackendInternal::IBackendProfilingContextPtr CreateBackendProfilingContext ( const IRuntime::CreationOptions &  creationOptions, IBackendProfilingPtr &  backendProfiling  )

overridevirtual

Create context specifically used for profiling interaction from backends.

Reimplemented from IBackendInternal.

Definition at line 51 of file RefBackend.cpp.

Referenced by RefBackend::GetId().

{
    return IBackendProfilingContextPtr{};
}

CreateMemoryManager()

IBackendInternal::IMemoryManagerUniquePtr CreateMemoryManager ( ) const

overridevirtual

Reimplemented from IBackendInternal.

Definition at line 57 of file RefBackend.cpp.

Referenced by RefBackend::GetId().

{
    return std::make_unique<RefMemoryManager>();
}

CreateWorkloadFactory() [1/2]

IBackendInternal::IWorkloadFactoryPtr CreateWorkloadFactory ( const IBackendInternal::IMemoryManagerSharedPtr &  memoryManager = nullptr ) const

overridevirtual

Implements IBackendInternal.

Definition at line 30 of file RefBackend.cpp.

Referenced by RefBackend::GetId().

{
    return std::make_unique<RefWorkloadFactory>(boost::polymorphic_pointer_downcast<RefMemoryManager>(memoryManager));
}

CreateWorkloadFactory() [2/2]

IBackendInternal::IWorkloadFactoryPtr CreateWorkloadFactory ( class TensorHandleFactoryRegistry &  tensorHandleFactoryRegistry ) const

overridevirtual

Reimplemented from IBackendInternal.

Definition at line 36 of file RefBackend.cpp.

References TensorHandleFactoryRegistry::RegisterMemoryManager().

{
    auto memoryManager = std::make_shared<RefMemoryManager>();

    tensorHandleFactoryRegistry.RegisterMemoryManager(memoryManager);

    return std::make_unique<RefWorkloadFactory>(boost::polymorphic_pointer_downcast<RefMemoryManager>(memoryManager));
}

GetHandleFactoryPreferences()

std::vector< ITensorHandleFactory::FactoryId > GetHandleFactoryPreferences ( ) const

overridevirtual

(Optional) Returns a vector of supported TensorHandleFactory ids in preference order.

Reimplemented from IBackendInternal.

Definition at line 82 of file RefBackend.cpp.

References RefTensorHandleFactory::GetIdStatic().

Referenced by RefBackend::GetId().

{
    return std::vector<ITensorHandleFactory::FactoryId> { RefTensorHandleFactory::GetIdStatic() };
}

GetId()

const BackendId& GetId ( ) const

inlineoverridevirtual

Implements IBackend.

Definition at line 19 of file RefBackend.hpp.

References RefBackend::CreateBackendContext(), RefBackend::CreateBackendProfilingContext(), RefBackend::CreateMemoryManager(), RefBackend::CreateWorkloadFactory(), RefBackend::GetHandleFactoryPreferences(), RefBackend::GetIdStatic(), RefBackend::GetLayerSupport(), RefBackend::GetOptimizations(), RefBackend::OptimizeSubgraphView(), and RefBackend::RegisterTensorHandleFactories().

{ return GetIdStatic(); }

GetIdStatic()

const BackendId & GetIdStatic ( )

static

Definition at line 24 of file RefBackend.cpp.

References armnn::RefBackendId().

Referenced by GetBackendId(), and RefBackend::GetId().

{
    static const BackendId s_Id{RefBackendId()};
    return s_Id;
}

GetLayerSupport()

IBackendInternal::ILayerSupportSharedPtr GetLayerSupport ( ) const

overridevirtual

Implements IBackendInternal.

Definition at line 67 of file RefBackend.cpp.

Referenced by RefBackend::GetId().

{
    static ILayerSupportSharedPtr layerSupport{new RefLayerSupport};
    return layerSupport;
}

GetOptimizations()

IBackendInternal::Optimizations GetOptimizations ( ) const

overridevirtual

Reimplemented from IBackendInternal.

Definition at line 62 of file RefBackend.cpp.

Referenced by RefBackend::GetId().

{
    return Optimizations{};
}

OptimizeSubgraphView()

OptimizationViews OptimizeSubgraphView ( const SubgraphView &  subgraph ) const

overridevirtual

Reimplemented from IBackendInternal.

Definition at line 73 of file RefBackend.cpp.

References OptimizationViews::AddUntouchedSubgraph().

Referenced by RefBackend::GetId().

{
    OptimizationViews optimizationViews;

    optimizationViews.AddUntouchedSubgraph(SubgraphView(subgraph));

    return optimizationViews;
}

RegisterTensorHandleFactories()

void RegisterTensorHandleFactories ( class TensorHandleFactoryRegistry &  )

overridevirtual

(Optional) Register TensorHandleFactories Either this method or CreateMemoryManager() and IWorkloadFactory::CreateTensor()/IWorkloadFactory::CreateSubtensor() methods must be implemented.

Reimplemented from IBackendInternal.

Definition at line 87 of file RefBackend.cpp.

References TensorHandleFactoryRegistry::RegisterFactory(), and TensorHandleFactoryRegistry::RegisterMemoryManager().

Referenced by RefBackend::GetId().

{
    auto memoryManager = std::make_shared<RefMemoryManager>();

    registry.RegisterMemoryManager(memoryManager);
    registry.RegisterFactory(std::make_unique<RefTensorHandleFactory>(memoryManager));
}

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

• src/backends/reference/RefBackend.hpp
• src/backends/reference/RefBackend.cpp