| // |
| // Copyright © 2017 Arm Ltd. All rights reserved. |
| // SPDX-License-Identifier: MIT |
| // |
| |
| #include "MockBackend.hpp" |
| #include "MockBackendId.hpp" |
| #include "armnn/backends/profiling/IBackendProfilingContext.hpp" |
| |
| #include <armnn/BackendRegistry.hpp> |
| |
| #include <armnn/backends/IBackendContext.hpp> |
| #include <armnn/backends/IMemoryManager.hpp> |
| |
| #include <Optimizer.hpp> |
| #include <SubgraphViewSelector.hpp> |
| |
| #include <boost/cast.hpp> |
| |
| #include <algorithm> |
| |
| namespace |
| { |
| |
| bool IsLayerSupported(const armnn::Layer* layer) |
| { |
| BOOST_ASSERT(layer != nullptr); |
| |
| armnn::LayerType layerType = layer->GetType(); |
| switch (layerType) |
| { |
| case armnn::LayerType::Input: |
| case armnn::LayerType::Output: |
| case armnn::LayerType::Addition: |
| case armnn::LayerType::Convolution2d: |
| // Layer supported |
| return true; |
| default: |
| // Layer unsupported |
| return false; |
| } |
| } |
| |
| bool IsLayerSupported(const armnn::Layer& layer) |
| { |
| return IsLayerSupported(&layer); |
| } |
| |
| bool IsLayerOptimizable(const armnn::Layer* layer) |
| { |
| BOOST_ASSERT(layer != nullptr); |
| |
| // A Layer is not optimizable if its name contains "unoptimizable" |
| const std::string layerName(layer->GetName()); |
| bool optimizable = layerName.find("unoptimizable") == std::string::npos; |
| |
| return optimizable; |
| } |
| |
| bool IsLayerOptimizable(const armnn::Layer& layer) |
| { |
| return IsLayerOptimizable(&layer); |
| } |
| |
| } // Anonymous namespace |
| |
| namespace armnn |
| { |
| |
| MockBackendInitialiser::MockBackendInitialiser() |
| { |
| BackendRegistryInstance().Register(MockBackend::GetIdStatic(), |
| []() |
| { |
| return IBackendInternalUniquePtr(new MockBackend); |
| }); |
| } |
| |
| MockBackendInitialiser::~MockBackendInitialiser() |
| { |
| try |
| { |
| BackendRegistryInstance().Deregister(MockBackend::GetIdStatic()); |
| } |
| catch (...) |
| { |
| std::cerr << "could not deregister mock backend" << std::endl; |
| } |
| } |
| |
| const BackendId& MockBackend::GetIdStatic() |
| { |
| static const BackendId s_Id{MockBackendId()}; |
| return s_Id; |
| } |
| |
| IBackendInternal::IWorkloadFactoryPtr MockBackend::CreateWorkloadFactory( |
| const IBackendInternal::IMemoryManagerSharedPtr& /*memoryManager*/) const |
| { |
| return IWorkloadFactoryPtr{}; |
| } |
| |
| IBackendInternal::IBackendContextPtr MockBackend::CreateBackendContext(const IRuntime::CreationOptions&) const |
| { |
| return IBackendContextPtr{}; |
| } |
| |
| IBackendInternal::IBackendProfilingContextPtr MockBackend::CreateBackendProfilingContext( |
| const IRuntime::CreationOptions& options, IBackendProfilingPtr& backendProfiling) |
| { |
| IgnoreUnused(options); |
| std::shared_ptr<armnn::MockBackendProfilingContext> context = |
| std::make_shared<MockBackendProfilingContext>(backendProfiling); |
| MockBackendProfilingService::Instance().SetProfilingContextPtr(context); |
| return context; |
| } |
| |
| IBackendInternal::IMemoryManagerUniquePtr MockBackend::CreateMemoryManager() const |
| { |
| return IMemoryManagerUniquePtr{}; |
| } |
| |
| IBackendInternal::Optimizations MockBackend::GetOptimizations() const |
| { |
| return Optimizations{}; |
| } |
| |
| IBackendInternal::ILayerSupportSharedPtr MockBackend::GetLayerSupport() const |
| { |
| static ILayerSupportSharedPtr layerSupport{new MockLayerSupport}; |
| return layerSupport; |
| } |
| |
| OptimizationViews MockBackend::OptimizeSubgraphView(const SubgraphView& subgraph) const |
| { |
| // Prepare the optimization views |
| OptimizationViews optimizationViews; |
| |
| // Get the layers of the input sub-graph |
| const SubgraphView::Layers& subgraphLayers = subgraph.GetLayers(); |
| |
| // Parse the layers |
| SubgraphView::Layers supportedLayers; |
| SubgraphView::Layers unsupportedLayers; |
| SubgraphView::Layers untouchedLayers; |
| std::for_each(subgraphLayers.begin(), |
| subgraphLayers.end(), |
| [&](Layer* layer) |
| { |
| bool supported = IsLayerSupported(layer); |
| if (supported) |
| { |
| // Layer supported, check if it's optimizable |
| bool optimizable = IsLayerOptimizable(layer); |
| if (optimizable) |
| { |
| // Layer fully supported |
| supportedLayers.push_back(layer); |
| } |
| else |
| { |
| // Layer supported but not optimizable |
| untouchedLayers.push_back(layer); |
| } |
| } |
| else |
| { |
| // Layer unsupported |
| unsupportedLayers.push_back(layer); |
| } |
| }); |
| |
| // Check if there are supported layers |
| if (!supportedLayers.empty()) |
| { |
| // Select the layers that are neither inputs or outputs, but that are optimizable |
| auto supportedSubgraphSelector = [](const Layer& layer) |
| { |
| return layer.GetType() != LayerType::Input && |
| layer.GetType() != LayerType::Output && |
| IsLayerSupported(layer) && |
| IsLayerOptimizable(layer); |
| }; |
| |
| // Apply the subgraph selector to the supported layers to group them into sub-graphs were appropriate |
| SubgraphView mutableSubgraph(subgraph); |
| SubgraphViewSelector::Subgraphs supportedSubgraphs = |
| SubgraphViewSelector::SelectSubgraphs(mutableSubgraph, supportedSubgraphSelector); |
| |
| // Create a substitution pair for each supported sub-graph |
| std::for_each(supportedSubgraphs.begin(), |
| supportedSubgraphs.end(), |
| [&optimizationViews](const SubgraphView::SubgraphViewPtr& supportedSubgraph) |
| { |
| BOOST_ASSERT(supportedSubgraph != nullptr); |
| |
| PreCompiledLayer* preCompiledLayer = |
| optimizationViews.GetGraph().AddLayer<PreCompiledLayer>( |
| PreCompiledDescriptor(supportedSubgraph->GetNumInputSlots(), |
| supportedSubgraph->GetNumOutputSlots()), |
| "pre-compiled"); |
| preCompiledLayer->SetBackendId(MockBackendId()); |
| |
| SubgraphView substitutionSubgraph(*supportedSubgraph); |
| SubgraphView replacementSubgraph(preCompiledLayer); |
| |
| optimizationViews.AddSubstitution({ substitutionSubgraph, replacementSubgraph }); |
| }); |
| } |
| |
| // Check if there are unsupported layers |
| if (!unsupportedLayers.empty()) |
| { |
| // Select the layers that are neither inputs or outputs, and are not optimizable |
| auto unsupportedSubgraphSelector = [](const Layer& layer) |
| { |
| return layer.GetType() != LayerType::Input && |
| layer.GetType() != LayerType::Output && |
| !IsLayerSupported(layer); |
| }; |
| |
| // Apply the subgraph selector to the unsupported layers to group them into sub-graphs were appropriate |
| SubgraphView mutableSubgraph(subgraph); |
| SubgraphViewSelector::Subgraphs unsupportedSubgraphs = |
| SubgraphViewSelector::SelectSubgraphs(mutableSubgraph, unsupportedSubgraphSelector); |
| |
| // Add each unsupported sub-graph to the list of failed sub-graphs in the optimizization views |
| std::for_each(unsupportedSubgraphs.begin(), |
| unsupportedSubgraphs.end(), |
| [&optimizationViews](const SubgraphView::SubgraphViewPtr& unsupportedSubgraph) |
| { |
| BOOST_ASSERT(unsupportedSubgraph != nullptr); |
| |
| optimizationViews.AddFailedSubgraph(SubgraphView(*unsupportedSubgraph)); |
| }); |
| } |
| |
| // Check if there are untouched layers |
| if (!untouchedLayers.empty()) |
| { |
| // Select the layers that are neither inputs or outputs, that are supported but that and are not optimizable |
| auto untouchedSubgraphSelector = [](const Layer& layer) |
| { |
| return layer.GetType() != LayerType::Input && |
| layer.GetType() != LayerType::Output && |
| IsLayerSupported(layer) && |
| !IsLayerOptimizable(layer); |
| }; |
| |
| // Apply the subgraph selector to the untouched layers to group them into sub-graphs were appropriate |
| SubgraphView mutableSubgraph(subgraph); |
| SubgraphViewSelector::Subgraphs untouchedSubgraphs = |
| SubgraphViewSelector::SelectSubgraphs(mutableSubgraph, untouchedSubgraphSelector); |
| |
| // Add each untouched sub-graph to the list of untouched sub-graphs in the optimizization views |
| std::for_each(untouchedSubgraphs.begin(), |
| untouchedSubgraphs.end(), |
| [&optimizationViews](const SubgraphView::SubgraphViewPtr& untouchedSubgraph) |
| { |
| BOOST_ASSERT(untouchedSubgraph != nullptr); |
| |
| optimizationViews.AddUntouchedSubgraph(SubgraphView(*untouchedSubgraph)); |
| }); |
| } |
| |
| return optimizationViews; |
| } |
| |
| } // namespace armnn |