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//
// Copyright © 2017 Arm Ltd. All rights reserved.
// SPDX-License-Identifier: MIT
//
#include <armnn/BackendOptions.hpp>
#include <armnn/backends/IBackendInternal.hpp>
namespace armnn
{
IMemoryManagerUniquePtr IBackendInternal::CreateMemoryManager() const
{
return IMemoryManagerUniquePtr();
}
IBackendInternal::IWorkloadFactoryPtr IBackendInternal::CreateWorkloadFactory(
class TensorHandleFactoryRegistry& /*tensorHandleFactoryRegistry*/) const
{
return IWorkloadFactoryPtr{};
}
IBackendInternal::IWorkloadFactoryPtr IBackendInternal::CreateWorkloadFactory(
const IMemoryManagerSharedPtr& memoryManager,
const ModelOptions& modelOptions) const
{
if (!modelOptions.empty())
{
for (auto optionsGroup : modelOptions)
{
if (optionsGroup.GetBackendId() == GetId())
{
return IWorkloadFactoryPtr{};
}
}
}
return CreateWorkloadFactory(memoryManager);
}
IBackendInternal::IWorkloadFactoryPtr IBackendInternal::CreateWorkloadFactory(
class TensorHandleFactoryRegistry& tensorHandleFactoryRegistry,
const ModelOptions& modelOptions) const
{
if (!modelOptions.empty())
{
for (auto optionsGroup : modelOptions)
{
if (optionsGroup.GetBackendId() == GetId())
{
return IWorkloadFactoryPtr{};
}
}
}
return CreateWorkloadFactory(tensorHandleFactoryRegistry);
}
IBackendInternal::IWorkloadFactoryPtr IBackendInternal::CreateWorkloadFactory(
class TensorHandleFactoryRegistry& tensorHandleFactoryRegistry,
const ModelOptions& modelOptions,
MemorySourceFlags inputFlags,
MemorySourceFlags outputFlags) const
{
IgnoreUnused(inputFlags);
IgnoreUnused(outputFlags);
return CreateWorkloadFactory(tensorHandleFactoryRegistry, modelOptions);
}
IBackendInternal::IBackendContextPtr IBackendInternal::CreateBackendContext(const IRuntime::CreationOptions&) const
{
return IBackendContextPtr{};
}
IBackendInternal::IBackendSpecificModelContextPtr IBackendInternal::CreateBackendSpecificModelContext(
const ModelOptions&) const
{
return IBackendSpecificModelContextPtr{};
}
IBackendInternal::IBackendProfilingContextPtr IBackendInternal::CreateBackendProfilingContext(
const IRuntime::CreationOptions&, IBackendProfilingPtr&)
{
return IBackendProfilingContextPtr{};
}
IBackendInternal::ILayerSupportSharedPtr IBackendInternal::GetLayerSupport(const ModelOptions& modelOptions) const
{
if (!modelOptions.empty())
{
for (auto optionsGroup : modelOptions)
{
if (optionsGroup.GetBackendId() == GetId())
{
return ILayerSupportSharedPtr{};
}
}
}
return GetLayerSupport();
}
// Default implementation of OptimizeSubgraphView. Returns an untouched subgraph.
// Override this method with a custom optimization implementation.
OptimizationViews IBackendInternal::OptimizeSubgraphView(const SubgraphView& subgraph) const
{
OptimizationViews result;
result.AddUntouchedSubgraph(SubgraphView(subgraph));
return result;
}
OptimizationViews IBackendInternal::OptimizeSubgraphView(const SubgraphView& subgraph,
const ModelOptions& /*modelOptions*/) const
{
return OptimizeSubgraphView(subgraph);
}
bool IBackendInternal::SupportsTensorAllocatorAPI() const
{
return !GetHandleFactoryPreferences().empty();
}
void IBackendInternal::RegisterTensorHandleFactories(class TensorHandleFactoryRegistry& registry,
MemorySourceFlags /*inputFlags*/,
MemorySourceFlags /*outputFlags*/)
{
return RegisterTensorHandleFactories(registry);
}
ITensorHandleFactory::FactoryId IBackendInternal::GetBackwardCompatibleFavoriteHandleFactory()
{
auto favorites = GetHandleFactoryPreferences();
if (favorites.empty())
{
return ITensorHandleFactory::LegacyFactoryId;
}
return favorites[0];
}
std::vector<ITensorHandleFactory::FactoryId> IBackendInternal::GetHandleFactoryPreferences() const
{
return std::vector<ITensorHandleFactory::FactoryId>();
}
} // namespace armnn
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