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-rw-r--r--src/armnn/BackendHelper.cpp28
-rw-r--r--src/armnn/ILayerSupport.cpp24
-rw-r--r--src/armnn/LayersFwd.hpp4
-rw-r--r--src/armnn/Network.cpp133
-rw-r--r--src/armnn/NetworkUtils.cpp179
-rw-r--r--src/armnn/NetworkUtils.hpp10
-rw-r--r--src/armnn/layers/ConvertBf16ToFp32Layer.cpp55
-rw-r--r--src/armnn/layers/ConvertBf16ToFp32Layer.hpp42
-rw-r--r--src/armnn/layers/ConvertFp32ToBf16Layer.cpp56
-rw-r--r--src/armnn/layers/ConvertFp32ToBf16Layer.hpp42
-rw-r--r--src/armnn/optimizations/All.hpp2
-rw-r--r--src/armnn/optimizations/ConvertConstants.hpp54
-rw-r--r--src/armnn/optimizations/ConvertFp32NetworkToBf16.hpp79
-rw-r--r--src/armnn/optimizations/FuseConvertFp32ToBf16IntoConstLayers.hpp89
-rw-r--r--src/armnn/test/FloatingPointConverterTest.cpp70
-rw-r--r--src/armnn/test/ShapeInferenceTests.cpp11
-rw-r--r--src/armnn/test/UtilsTests.cpp48
-rw-r--r--src/armnn/test/optimizations/ConvertConstantsBFloatTests.cpp128
-rw-r--r--src/armnn/test/optimizations/Fp32NetworkToBf16ConverterTests.cpp229
-rw-r--r--src/armnn/test/optimizations/FuseConvertF32BF16IntoConstLayerTests.cpp151
20 files changed, 6 insertions, 1428 deletions
diff --git a/src/armnn/BackendHelper.cpp b/src/armnn/BackendHelper.cpp
index 6638709d6f..ff899d49ea 100644
--- a/src/armnn/BackendHelper.cpp
+++ b/src/armnn/BackendHelper.cpp
@@ -307,34 +307,6 @@ bool LayerSupportHandle::IsConstantSupported(const TensorInfo& output,
reasonIfUnsupported);
}
-bool LayerSupportHandle::IsConvertBf16ToFp32Supported(const TensorInfo& input,
- const TensorInfo& output,
- Optional<std::string&> reasonIfUnsupported)
-{
- TensorInfos infos{input, output};
-
- return m_LayerSupport->IsLayerSupported(LayerType::ConvertBf16ToFp32,
- infos,
- BaseDescriptor(),
- EmptyOptional(),
- EmptyOptional(),
- reasonIfUnsupported);
-}
-
-bool LayerSupportHandle::IsConvertFp32ToBf16Supported(const TensorInfo& input,
- const TensorInfo& output,
- Optional<std::string&> reasonIfUnsupported)
-{
- TensorInfos infos{input, output};
-
- return m_LayerSupport->IsLayerSupported(LayerType::ConvertFp32ToBf16,
- infos,
- BaseDescriptor(),
- EmptyOptional(),
- EmptyOptional(),
- reasonIfUnsupported);
-}
-
bool LayerSupportHandle::IsConvertFp16ToFp32Supported(const TensorInfo& input,
const TensorInfo& output,
Optional<std::string&> reasonIfUnsupported)
diff --git a/src/armnn/ILayerSupport.cpp b/src/armnn/ILayerSupport.cpp
index 8099782750..3ef367ee16 100644
--- a/src/armnn/ILayerSupport.cpp
+++ b/src/armnn/ILayerSupport.cpp
@@ -77,18 +77,10 @@ bool ILayerSupport::IsLayerSupported(const LayerType& type,
case LayerType::Constant:
return IsConstantSupported(infos[0],
reasonIfUnsupported);
- case LayerType::ConvertBf16ToFp32:
- return IsConvertBf16ToFp32Supported(infos[0],
- infos[1],
- reasonIfUnsupported);
case LayerType::ConvertFp16ToFp32:
return IsConvertFp16ToFp32Supported(infos[0],
infos[1],
reasonIfUnsupported);
- case LayerType::ConvertFp32ToBf16:
- return IsConvertFp32ToBf16Supported(infos[0],
- infos[1],
- reasonIfUnsupported);
case LayerType::ConvertFp32ToFp16:
return IsConvertFp32ToFp16Supported(infos[0],
infos[1],
@@ -634,22 +626,6 @@ bool ILayerSupport::IsConstantSupported(const TensorInfo& output,
return false;
}
-bool ILayerSupport::IsConvertBf16ToFp32Supported(const TensorInfo& input,
- const TensorInfo& output,
- Optional<std::string&> reasonIfUnsupported) const
-{
- IgnoreUnused(input, output, reasonIfUnsupported);
- return false;
-}
-
-bool ILayerSupport::IsConvertFp32ToBf16Supported(const TensorInfo& input,
- const TensorInfo& output,
- Optional<std::string&> reasonIfUnsupported) const
-{
- IgnoreUnused(input, output, reasonIfUnsupported);
- return false;
-}
-
bool ILayerSupport::IsConvertFp16ToFp32Supported(const TensorInfo& input,
const TensorInfo& output,
Optional<std::string&> reasonIfUnsupported) const
diff --git a/src/armnn/LayersFwd.hpp b/src/armnn/LayersFwd.hpp
index acac1f9988..43862d5072 100644
--- a/src/armnn/LayersFwd.hpp
+++ b/src/armnn/LayersFwd.hpp
@@ -17,9 +17,7 @@
#include "layers/ComparisonLayer.hpp"
#include "layers/ConcatLayer.hpp"
#include "layers/ConstantLayer.hpp"
-#include "layers/ConvertBf16ToFp32Layer.hpp"
#include "layers/ConvertFp16ToFp32Layer.hpp"
-#include "layers/ConvertFp32ToBf16Layer.hpp"
#include "layers/ConvertFp32ToFp16Layer.hpp"
#include "layers/Convolution2dLayer.hpp"
#include "layers/Convolution3dLayer.hpp"
@@ -119,9 +117,7 @@ DECLARE_LAYER(ChannelShuffle)
DECLARE_LAYER(Comparison)
DECLARE_LAYER(Concat)
DECLARE_LAYER(Constant)
-DECLARE_LAYER(ConvertBf16ToFp32)
DECLARE_LAYER(ConvertFp16ToFp32)
-DECLARE_LAYER(ConvertFp32ToBf16)
DECLARE_LAYER(ConvertFp32ToFp16)
DECLARE_LAYER(Convolution2d)
DECLARE_LAYER(Convolution3d)
diff --git a/src/armnn/Network.cpp b/src/armnn/Network.cpp
index 9d00a69518..6d3058c670 100644
--- a/src/armnn/Network.cpp
+++ b/src/armnn/Network.cpp
@@ -604,30 +604,6 @@ bool CheckScaleSetOnQuantizedType(Layer* layer, Optional<std::vector<std::string
return noErrors;
}
-template <typename LayerT>
-LayerT* ConvertBf16ToFp32Weight(Layer* l)
-{
- LayerT* layer = PolymorphicDowncast<LayerT*>(l);
- if ((layer->GetType() == LayerType::Convolution2d || layer->GetType() == LayerType::FullyConnected)
- && layer->m_Weight)
- {
- const TensorInfo& info = layer->m_Weight->GetTensorInfo();
-
- if (info.GetDataType() == DataType::BFloat16)
- {
- std::vector<float> newValues(info.GetNumElements());
-
- armnnUtils::FloatingPointConverter::ConvertBFloat16ToFloat32(
- layer->m_Weight->template GetConstTensor<armnn::BFloat16>(), info.GetNumElements(), newValues.data());
-
- TensorInfo newInfo(info.GetShape(), DataType::Float32);
- ConstTensor newInput(newInfo, newValues);
- layer->m_Weight.reset(new ScopedTensorHandle(newInput));
- }
- }
- return layer;
-}
-
OptimizationResult AttemptBackendAssignment(BackendSettings& backendSettings,
Graph& graph,
Layer* layer,
@@ -772,98 +748,6 @@ OptimizationResult AttemptBackendAssignment(BackendSettings& backendSettings,
return result;
}
}
- else if (dataTypeIn == DataType::BFloat16 || dataTypeOut == DataType::BFloat16)
- {
- const auto layerType = layer->GetType();
- if (IWorkloadFactory::IsLayerSupported(*layer, DataType::Float32, reasonIfUnsupported)
- && layerType != LayerType::ConvertFp32ToBf16
- && layerType != LayerType::ConvertBf16ToFp32)
- {
- bool revertConstantWeightsConversion = RevertConstantWeightsToFP32(layer);
-
- // Insert BF16 -> FP32 conversion layer before current layer.
- // Unless we have reverted Constant Weights Type above.
- std::vector<ConvertBf16ToFp32Layer*> convertBf16ToFp32Layers;
- if (dataTypeIn == DataType::BFloat16 && dataTypeOut != DataType::BFloat16
- && !revertConstantWeightsConversion)
- {
- convertBf16ToFp32Layers =
- InsertConvertBf16ToFp32LayersBefore(graph, *layer);
- if (layer->GetType() == LayerType::Convolution2d)
- {
- ConvertBf16ToFp32Weight<Convolution2dLayer>(layer);
- }
- else if (layer->GetType() == LayerType::FullyConnected)
- {
- ConvertBf16ToFp32Weight<FullyConnectedLayer>(layer);
- }
- }
-
- // Insert FP32 -> BF16 conversion layer after current layer
- std::vector<ConvertFp32ToBf16Layer*> convertFp32ToBf16Layers;
- if (dataTypeOut == DataType::BFloat16)
- {
- convertFp32ToBf16Layers =
- InsertConvertFp32ToBf16LayersAfter(graph, *layer);
- }
-
- // Assign a supported backend to the newly introduced conversion layers
- auto AssignFirstSupportedBackend = [&](Layer* layer, BackendId preferredBackend)
- {
- bool supportedBackendFound = false;
- std::string reasonIfUnsupported;
-
- // Try preferred backend first
- layer->SetBackendId(preferredBackend);
- if (IWorkloadFactory::IsLayerSupported(*layer,
- EmptyOptional(),
- reasonIfUnsupported))
- {
- supportedBackendFound = true;
- }
- else
- {
- for (const auto& backend : availablePreferredBackends)
- {
- // Skip preferred backend (we already determined that it is not supported)
- if (backend == preferredBackend)
- {
- continue;
- }
-
- layer->SetBackendId(backend);
- if (IWorkloadFactory::IsLayerSupported(*layer,
- EmptyOptional(),
- reasonIfUnsupported))
- {
- supportedBackendFound = true;
- break;
- }
- }
- }
-
- return supportedBackendFound;
- };
-
- for (ConvertBf16ToFp32Layer* convertLayer : convertBf16ToFp32Layers)
- {
- if (!AssignFirstSupportedBackend(convertLayer, backend))
- {
- return ReturnError(convertLayer);
- }
- }
-
- for (ConvertFp32ToBf16Layer* convertLayer : convertFp32ToBf16Layers)
- {
- if (!AssignFirstSupportedBackend(convertLayer, backend))
- {
- return ReturnError(convertLayer);
- }
- }
-
- return result;
- }
- }
std::stringstream warningMsg;
warningMsg << "Layer of type " << GetLayerTypeAsCString(layer->GetType())
@@ -1669,6 +1553,12 @@ IOptimizedNetworkPtr Optimize(const Graph& inGraph,
throw InvalidArgumentException("Invoked Optimize with no backends specified");
}
+ if (options.m_ReduceFp32ToBf16)
+ {
+ throw InvalidArgumentException("BFloat16 optimization is currently ignored. In order to use Bf16 optimization "
+ "Please use the FastMathEnabled backend option for CpuAcc or GpuAcc.");
+ }
+
if (options.m_ReduceFp32ToFp16 && options.m_ReduceFp32ToBf16)
{
throw InvalidArgumentException("BFloat16 and Float16 optimization cannot be enabled at the same time.");
@@ -1745,17 +1635,6 @@ IOptimizedNetworkPtr Optimize(const Graph& inGraph,
Optimizer::Pass(optGraph, MakeOptimizations(ConvertConstantsFloatToHalf()));
}
- // If Fp32 to Bf16 optimization is set convert Fp32 network to Bf16
- // Convert input of Convolution2d and FullyConnected from Fp32 to Bf16
- // Only Constant weight of Convolution2d and FullyConnected are converted from Fp32 to Bf16
- // Constant and Fp32ToBf16 layers will also be fused so conversion is no longer needed at inference time
- if (options.m_ReduceFp32ToBf16)
- {
- ARMNN_SCOPED_PROFILING_EVENT(Compute::Undefined, "Optimizer_ReduceFp32ToBf16");
- Optimizer::Pass(optGraph, MakeOptimizations(Fp32NetworkToBf16Converter()));
- Optimizer::Pass(optGraph, MakeOptimizations(FuseConversionLayersIntoConstLayers()));
- }
-
// Initialize backend settings
BackendSettings backendSettings(backendPreferences, deviceSpec);
if (backendSettings.GetAvailablePreferredBackends().empty())
diff --git a/src/armnn/NetworkUtils.cpp b/src/armnn/NetworkUtils.cpp
index aaee4eba1a..1d46f029dc 100644
--- a/src/armnn/NetworkUtils.cpp
+++ b/src/armnn/NetworkUtils.cpp
@@ -5,8 +5,6 @@
#include "NetworkUtils.hpp"
-#include <armnnUtils/FloatingPointConverter.hpp>
-#include <BFloat16.hpp>
#include "SubgraphViewSelector.hpp"
#include <armnn/Exceptions.hpp>
@@ -26,17 +24,6 @@ void UpdateOutputSlotToFp32(OutputSlot& outputSlot)
outputSlot.SetTensorInfo(newTensorInfo);
}
-void ChangeOutputBf16ToFp32(Layer& layer)
-{
- for (auto&& outputSlot = layer.BeginOutputSlots(); outputSlot != layer.EndOutputSlots(); ++outputSlot)
- {
- if (outputSlot->GetTensorInfo().GetDataType() == DataType::BFloat16)
- {
- UpdateOutputSlotToFp32(*outputSlot);
- }
- }
-}
-
void ChangeOutputFp16ToFp32(Layer& layer)
{
for (auto&& outputSlot = layer.BeginOutputSlots(); outputSlot != layer.EndOutputSlots(); ++outputSlot)
@@ -50,93 +37,6 @@ void ChangeOutputFp16ToFp32(Layer& layer)
} // anonymous namespace
-std::vector<ConvertBf16ToFp32Layer*> InsertConvertBf16ToFp32LayersBefore(Graph& graph,
- Layer& layer,
- bool expectCorrectInputType)
-{
- std::vector<ConvertBf16ToFp32Layer*> convertLayers;
- convertLayers.reserve(layer.GetNumInputSlots());
-
- // Insert a ConvertBf16ToFp32Layer before each input slot
- for (auto&& inputSlot = layer.BeginInputSlots(); inputSlot != layer.EndInputSlots(); ++inputSlot)
- {
- bool allowInsert = true;
- if (expectCorrectInputType)
- {
- // Only insert ConvertBf16ToFp32Layer before BF16 input slots
- OutputSlot* connectedOutputSlot = inputSlot->GetConnectedOutputSlot();
- allowInsert =
- connectedOutputSlot && connectedOutputSlot->GetTensorInfo().GetDataType() == DataType::BFloat16;
- }
-
- if (allowInsert)
- {
- const std::string name =
- std::string("convert_bf16_to_fp32-" + std::to_string(inputSlot->GetSlotIndex()) + "-") +
- layer.GetName();
- ConvertBf16ToFp32Layer* convertLayer =
- graph.InsertNewLayer<ConvertBf16ToFp32Layer>(*inputSlot, name.c_str());
-
- TensorInfo convertInfo = convertLayer->GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
- convertInfo.SetDataType(DataType::Float32);
-
- convertLayer->GetOutputSlot().SetTensorInfo(convertInfo);
-
- convertLayers.emplace_back(convertLayer);
- }
- }
-
- return convertLayers;
-}
-
-std::vector<ConvertFp32ToBf16Layer*> InsertConvertFp32ToBf16LayersBefore(Graph& graph,
- Layer& layer,
- bool expectCorrectInputType)
-{
- std::vector<ConvertFp32ToBf16Layer*> convertLayers;
- convertLayers.reserve(layer.GetNumInputSlots());
-
- // Insert a ConvertFp32ToBf16Layer before each input slot
- for (auto&& inputSlot = layer.BeginInputSlots(); inputSlot != layer.EndInputSlots(); ++inputSlot)
- {
- bool allowInsert = true;
-
- if ((layer.GetType() == LayerType::Convolution2d ||
- layer.GetType() == LayerType::FullyConnected ||
- layer.GetType() == LayerType::DepthwiseConvolution2d)
- && inputSlot->GetSlotIndex() == 2)
- {
- // Refrain from reducing bias to Bf16
- continue;
- }
- if (expectCorrectInputType)
- {
- // Only insert ConvertFp32ToBf16Layer before FP32 input slots
- OutputSlot* connectedOutputSlot = inputSlot->GetConnectedOutputSlot();
- allowInsert =
- connectedOutputSlot && connectedOutputSlot->GetTensorInfo().GetDataType() == DataType::Float32;
- }
-
- if (allowInsert)
- {
- const std::string name =
- std::string("convert_fp32_to_bf16-" + std::to_string(inputSlot->GetSlotIndex()) + "-") +
- layer.GetName();
- ConvertFp32ToBf16Layer* convertLayer =
- graph.InsertNewLayer<ConvertFp32ToBf16Layer>(*inputSlot, name.c_str());
-
- TensorInfo convertInfo = convertLayer->GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
- convertInfo.SetDataType(DataType::BFloat16);
-
- convertLayer->GetOutputSlot().SetTensorInfo(convertInfo);
-
- convertLayers.emplace_back(convertLayer);
- }
- }
-
- return convertLayers;
-}
-
std::vector<ConvertFp16ToFp32Layer*> InsertConvertFp16ToFp32LayersBefore(Graph& graph,
Layer& layer,
bool expectCorrectInputType)
@@ -176,39 +76,6 @@ std::vector<ConvertFp16ToFp32Layer*> InsertConvertFp16ToFp32LayersBefore(Graph&
return convertLayers;
}
-std::vector<ConvertFp32ToBf16Layer*> InsertConvertFp32ToBf16LayersAfter(Graph& graph, Layer& layer)
-{
- const unsigned int numOutputSlots = layer.GetNumOutputSlots();
-
- std::vector<ConvertFp32ToBf16Layer*> convertLayers;
- convertLayers.reserve(numOutputSlots);
-
- // Update Bf16 output slots to FP32 on current layer
- ChangeOutputBf16ToFp32(layer);
-
- // Insert a ConvertFp32ToBf16Layer after each FP32 output slot
- for (unsigned int slotIndex = 0u; slotIndex < numOutputSlots; ++slotIndex)
- {
- OutputSlot& outputSlot = layer.GetOutputSlot(slotIndex);
- if(outputSlot.GetTensorInfo().GetDataType() == DataType::Float32)
- {
- const std::string name =
- std::string("convert_fp32_to_bf16-" + std::to_string(slotIndex) + "-") + layer.GetName();
- ConvertFp32ToBf16Layer* convertLayer =
- graph.InsertNewLayer<ConvertFp32ToBf16Layer>(outputSlot, name.c_str());
-
- TensorInfo convertInfo = convertLayer->GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
- convertInfo.SetDataType(DataType::BFloat16);
-
- convertLayer->GetOutputSlot().SetTensorInfo(convertInfo);
-
- convertLayers.emplace_back(convertLayer);
- }
- }
-
- return convertLayers;
-}
-
std::vector<ConvertFp32ToFp16Layer*> InsertConvertFp32ToFp16LayersAfter(Graph& graph, Layer& layer)
{
const unsigned int numOutputSlots = layer.GetNumOutputSlots();
@@ -274,50 +141,4 @@ std::vector<DebugLayer*> InsertDebugLayerAfter(Graph& graph, Layer& layer, bool
return debugLayers;
}
-bool RevertConstantWeightsToFP32(Layer* layer)
-{
- if (layer->GetType() == LayerType::Convolution2d || layer->GetType() == LayerType::FullyConnected)
- {
- // Revert Weights on Constant Layer to FP32 so they can be accessed by Conv2d or FullyConnected
- // This prevents a conversion layer being added in during backend assignment which blocks
- // the RedirectMembersToConstantInputs backward compatibility workaround/optimization.
- auto constantLayerInfo = layer->GetInputSlot(1).GetConnection()->GetTensorInfo();
-
- if (constantLayerInfo.IsConstant() && constantLayerInfo.GetDataType() == DataType::BFloat16)
- {
- std::vector<float> newValues(constantLayerInfo.GetNumElements());
-
- auto weightLayer = PolymorphicDowncast<ConstantLayer*>(
- &layer->GetInputSlot(1).GetConnection()->GetOwningIConnectableLayer());
- armnnUtils::FloatingPointConverter::ConvertBFloat16ToFloat32(
- weightLayer->m_LayerOutput->GetConstTensor<BFloat16>(),
- constantLayerInfo.GetNumElements(),
- newValues.data());
-
- TensorInfo newInfo(constantLayerInfo.GetShape(), DataType::Float32);
- newInfo.SetConstant(true);
- ConstTensor newInput(newInfo, newValues);
- weightLayer->m_LayerOutput.reset(new ScopedTensorHandle(newInput));
- weightLayer->GetOutputSlot(0).SetTensorInfo(newInfo);
-
- // Connect Conv2d/FullyConnected to InputLayer directly leaving out
- // the ConversionLayer to be cleaned up later
- auto& conversionLayer = layer->GetInputSlot(0).GetConnection()->GetOwningIConnectableLayer();
- auto actualInputOutputSlot = conversionLayer.GetInputSlot(0).GetConnection();
-
- auto& conversionLayerOutputSlot =
- layer->GetInputSlot(0).GetConnection()->GetOwningIConnectableLayer().GetOutputSlot(0);
- auto& conversionLayerInputSlot =
- layer->GetInputSlot(0).GetConnection()->GetOwningIConnectableLayer().GetInputSlot(0);
- actualInputOutputSlot->Disconnect(conversionLayerInputSlot);
- conversionLayerOutputSlot.Disconnect(layer->GetInputSlot(0));
-
- actualInputOutputSlot->Connect(layer->GetInputSlot(0));
-
- return true;
- }
- }
- return false;
-}
-
} // namespace armnn
diff --git a/src/armnn/NetworkUtils.hpp b/src/armnn/NetworkUtils.hpp
index 38e0aabaf9..74e872cfbc 100644
--- a/src/armnn/NetworkUtils.hpp
+++ b/src/armnn/NetworkUtils.hpp
@@ -11,16 +11,6 @@
namespace armnn
{
-std::vector<ConvertBf16ToFp32Layer*> InsertConvertBf16ToFp32LayersBefore(Graph& graph,
- Layer& layer,
- bool expectCorrectInputType = true);
-
-std::vector<ConvertFp32ToBf16Layer*> InsertConvertFp32ToBf16LayersBefore(Graph& graph,
- Layer& layer,
- bool expectCorrectInputType = true);
-
-std::vector<ConvertFp32ToBf16Layer*> InsertConvertFp32ToBf16LayersAfter(Graph& graph, Layer& layer);
-
std::vector<ConvertFp16ToFp32Layer*> InsertConvertFp16ToFp32LayersBefore(Graph& graph,
Layer& layer,
bool expectCorrectInputType = true);
diff --git a/src/armnn/layers/ConvertBf16ToFp32Layer.cpp b/src/armnn/layers/ConvertBf16ToFp32Layer.cpp
deleted file mode 100644
index a0958e36cb..0000000000
--- a/src/armnn/layers/ConvertBf16ToFp32Layer.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include "ConvertBf16ToFp32Layer.hpp"
-#include "LayerCloneBase.hpp"
-
-#include <armnn/TypesUtils.hpp>
-
-#include <armnn/backends/WorkloadData.hpp>
-#include <armnn/backends/WorkloadFactory.hpp>
-
-namespace armnn
-{
-
-ConvertBf16ToFp32Layer::ConvertBf16ToFp32Layer(const char* name)
- : Layer(1, 1, LayerType::ConvertBf16ToFp32, name)
-{
-}
-
-std::unique_ptr<IWorkload> ConvertBf16ToFp32Layer::CreateWorkload(const IWorkloadFactory& factory) const
-{
- ConvertBf16ToFp32QueueDescriptor descriptor;
- SetAdditionalInfo(descriptor);
-
- return factory.CreateWorkload(LayerType::ConvertBf16ToFp32, descriptor, PrepInfoAndDesc(descriptor));
-}
-
-ConvertBf16ToFp32Layer* ConvertBf16ToFp32Layer::Clone(Graph& graph) const
-{
- return CloneBase<ConvertBf16ToFp32Layer>(graph, GetName());
-}
-
-void ConvertBf16ToFp32Layer::ValidateTensorShapesFromInputs()
-{
- VerifyLayerConnections(1, CHECK_LOCATION());
-
- const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();
-
- VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);
-
- auto inferredShapes = InferOutputShapes({ GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape() });
-
- ARMNN_ASSERT(inferredShapes.size() == 1);
-
- ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "ConvertBf16ToFp32Layer");
-}
-
-void ConvertBf16ToFp32Layer::ExecuteStrategy(IStrategy& strategy) const
-{
- strategy.ExecuteStrategy(this, GetParameters(), {}, GetName());
-}
-
-} // namespace armnn
diff --git a/src/armnn/layers/ConvertBf16ToFp32Layer.hpp b/src/armnn/layers/ConvertBf16ToFp32Layer.hpp
deleted file mode 100644
index 71312758e4..0000000000
--- a/src/armnn/layers/ConvertBf16ToFp32Layer.hpp
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#pragma once
-
-#include <Layer.hpp>
-
-namespace armnn
-{
-
-/// This layer converts data type BFloat16 to Float32.
-class ConvertBf16ToFp32Layer : public Layer
-{
-public:
- /// Makes a workload for the ConvertBf16ToFp32 type.
- /// @param [in] factory The workload factory which will create the workload.
- /// @return A pointer to the created workload, or nullptr if not created.
- virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override;
-
- /// Creates a dynamically-allocated copy of this layer.
- /// @param [in] graph The graph into which this layer is being cloned.
- ConvertBf16ToFp32Layer* Clone(Graph& graph) const override;
-
- /// Check if the input tensor shape(s)
- /// will lead to a valid configuration of @ref ConvertBf16ToFp32Layer.
- /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated.
- void ValidateTensorShapesFromInputs() override;
-
- void ExecuteStrategy(IStrategy& strategy) const override;
-
-protected:
- /// Constructor to create a ConvertBf16ToFp32Layer.
- /// @param [in] name Optional name for the layer.
- ConvertBf16ToFp32Layer(const char* name);
-
- /// Default destructor
- ~ConvertBf16ToFp32Layer() = default;
-};
-
-} // namespace
diff --git a/src/armnn/layers/ConvertFp32ToBf16Layer.cpp b/src/armnn/layers/ConvertFp32ToBf16Layer.cpp
deleted file mode 100644
index 7c98eea239..0000000000
--- a/src/armnn/layers/ConvertFp32ToBf16Layer.cpp
+++ /dev/null
@@ -1,56 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include "ConvertFp32ToBf16Layer.hpp"
-#include "LayerCloneBase.hpp"
-
-#include <armnn/TypesUtils.hpp>
-
-#include <armnn/backends/WorkloadData.hpp>
-#include <armnn/backends/WorkloadFactory.hpp>
-
-namespace armnn
-{
-
-ConvertFp32ToBf16Layer::ConvertFp32ToBf16Layer(const char* name)
- : Layer(1, 1, LayerType::ConvertFp32ToBf16, name)
-{
-}
-
-std::unique_ptr<IWorkload> ConvertFp32ToBf16Layer::CreateWorkload(const IWorkloadFactory& factory) const
-{
- ConvertFp32ToBf16QueueDescriptor descriptor;
- SetAdditionalInfo(descriptor);
-
- return factory.CreateWorkload(LayerType::ConvertFp32ToBf16, descriptor, PrepInfoAndDesc(descriptor));
-}
-
-ConvertFp32ToBf16Layer* ConvertFp32ToBf16Layer::Clone(Graph& graph) const
-{
- return CloneBase<ConvertFp32ToBf16Layer>(graph, GetName());
-}
-
-void ConvertFp32ToBf16Layer::ValidateTensorShapesFromInputs()
-{
-
- VerifyLayerConnections(1, CHECK_LOCATION());
-
- const TensorShape& outputShape = GetOutputSlot(0).GetTensorInfo().GetShape();
-
- VerifyShapeInferenceType(outputShape, m_ShapeInferenceMethod);
-
- auto inferredShapes = InferOutputShapes({ GetInputSlot(0).GetConnection()->GetTensorInfo().GetShape() });
-
- ARMNN_ASSERT(inferredShapes.size() == 1);
-
- ValidateAndCopyShape(outputShape, inferredShapes[0], m_ShapeInferenceMethod, "LayerName");
-}
-
-void ConvertFp32ToBf16Layer::ExecuteStrategy(IStrategy& strategy) const
-{
- strategy.ExecuteStrategy(this, GetParameters(), {}, GetName());
-}
-
-} // namespace armnn
diff --git a/src/armnn/layers/ConvertFp32ToBf16Layer.hpp b/src/armnn/layers/ConvertFp32ToBf16Layer.hpp
deleted file mode 100644
index 71de4fbcda..0000000000
--- a/src/armnn/layers/ConvertFp32ToBf16Layer.hpp
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#pragma once
-
-#include <Layer.hpp>
-
-namespace armnn
-{
-
-/// This layer converts data type Float32 to BFloat16.
-class ConvertFp32ToBf16Layer : public Layer
-{
-public:
- /// Makes a workload for the ConvertFp32ToBf16Layer type.
- /// @param [in] factory The workload factory which will create the workload.
- /// @return A pointer to the created workload, or nullptr if not created.
- virtual std::unique_ptr<IWorkload> CreateWorkload(const IWorkloadFactory& factory) const override;
-
- /// Creates a dynamically-allocated copy of this layer.
- /// @param [in] graph The graph into which this layer is being cloned.
- ConvertFp32ToBf16Layer* Clone(Graph& graph) const override;
-
- /// Check if the input tensor shape(s)
- /// will lead to a valid configuration of @ref ConvertFp32ToBf16Layer.
- /// @param [in] shapeInferenceMethod Indicates if output shape shall be overwritten or just validated.
- void ValidateTensorShapesFromInputs() override;
-
- void ExecuteStrategy(IStrategy& strategy) const override;
-
-protected:
- /// Constructor to create a ConvertFp32ToBf16Layer.
- /// @param [in] name Optional name for the layer.
- ConvertFp32ToBf16Layer(const char* name);
-
- /// Default destructor
- ~ConvertFp32ToBf16Layer() = default;
-};
-
-} // namespace
diff --git a/src/armnn/optimizations/All.hpp b/src/armnn/optimizations/All.hpp
index 0421f31973..a11dec9446 100644
--- a/src/armnn/optimizations/All.hpp
+++ b/src/armnn/optimizations/All.hpp
@@ -9,8 +9,6 @@
#include "ConvertConstants.hpp"
#include "ConvertConstDequantisationLayersToConstLayers.hpp"
#include "ConvertConstPermuteLayersToConstLayers.hpp"
-#include "FuseConvertFp32ToBf16IntoConstLayers.hpp"
-#include "ConvertFp32NetworkToBf16.hpp"
#include "ConvertFp32NetworkToFp16.hpp"
#include "FoldPadIntoLayer2d.hpp"
#include "FuseBatchNorm.hpp"
diff --git a/src/armnn/optimizations/ConvertConstants.hpp b/src/armnn/optimizations/ConvertConstants.hpp
index 54c14e5c89..7b2f1fd291 100644
--- a/src/armnn/optimizations/ConvertConstants.hpp
+++ b/src/armnn/optimizations/ConvertConstants.hpp
@@ -11,7 +11,6 @@
#include <armnn/backends/TensorHandle.hpp>
#include <armnn/utility/IgnoreUnused.hpp>
-#include <BFloat16.hpp>
#include <Half.hpp>
namespace armnn
@@ -19,27 +18,6 @@ namespace armnn
namespace optimizations
{
-struct BFloat16ToFloat32
-{
- static void Func(std::shared_ptr<ConstTensorHandle>& handle)
- {
- const TensorInfo& info = handle->GetTensorInfo();
-
- if (info.GetDataType() == DataType::BFloat16)
- {
- std::vector<float> newValues(info.GetNumElements());
-
- armnnUtils::FloatingPointConverter::ConvertBFloat16ToFloat32(handle->GetConstTensor<BFloat16>(),
- info.GetNumElements(),
- newValues.data());
-
- TensorInfo newInfo(info.GetShape(), DataType::Float32, 0.0f, 0, true);
- ConstTensor newInput(newInfo, newValues);
- handle.reset(new ScopedTensorHandle(newInput));
- }
- }
-};
-
struct Float16ToFloat32
{
static void Func(std::shared_ptr<ConstTensorHandle>& handle)
@@ -61,27 +39,6 @@ struct Float16ToFloat32
}
};
-struct Float32ToBFloat16
-{
- static void Func(std::shared_ptr<ConstTensorHandle>& handle)
- {
- const TensorInfo& info = handle->GetTensorInfo();
-
- if (info.GetDataType() == DataType::Float32)
- {
- std::vector<BFloat16> newValues(info.GetNumElements());
-
- armnnUtils::FloatingPointConverter::ConvertFloat32ToBFloat16(handle->GetConstTensor<float>(),
- info.GetNumElements(),
- newValues.data());
-
- TensorInfo newInfo(info.GetShape(), DataType::BFloat16, 0.0f, 0, true);
- ConstTensor newInput(newInfo, newValues);
- handle.reset(new ScopedTensorHandle(newInput));
- }
- }
-};
-
struct Float32ToFloat16
{
static void Func(std::shared_ptr<ConstTensorHandle>& handle)
@@ -138,17 +95,6 @@ struct IsFloat16Layer
}
};
-struct IsBFloat16Layer
-{
- static bool Test(const Layer& layer)
- {
- return layer.GetDataType() == DataType::BFloat16;
- }
-};
-
-using ConvertConstantsBFloatToFloat = ConvertConstants<BFloat16ToFloat32, IsFloat32Layer>;
-using ConvertConstantsFloatToBFloat = ConvertConstants<Float32ToBFloat16, IsBFloat16Layer>;
-
using ConvertConstantsHalfToFloat = ConvertConstants<Float16ToFloat32, IsFloat32Layer>;
using ConvertConstantsFloatToHalf = ConvertConstants<Float32ToFloat16, IsFloat16Layer>;
diff --git a/src/armnn/optimizations/ConvertFp32NetworkToBf16.hpp b/src/armnn/optimizations/ConvertFp32NetworkToBf16.hpp
deleted file mode 100644
index 6c80e740be..0000000000
--- a/src/armnn/optimizations/ConvertFp32NetworkToBf16.hpp
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-#pragma once
-
-#include "NetworkUtils.hpp"
-#include "Optimization.hpp"
-
-#include <armnn/utility/PolymorphicDowncast.hpp>
-
-namespace armnn
-{
-namespace optimizations
-{
-
-template <typename LayerT>
-inline LayerT* ConvertWeight(Layer* l)
-{
- LayerT* layer = PolymorphicDowncast<LayerT*>(l);
- if ((layer->GetType() == LayerType::Convolution2d || layer->GetType() == LayerType::FullyConnected)
- && layer->m_Weight)
- {
- const TensorInfo& info = layer->m_Weight->GetTensorInfo();
-
- if (info.GetDataType() == DataType::Float32)
- {
- std::vector<BFloat16> newValues(info.GetNumElements());
-
- armnnUtils::FloatingPointConverter::ConvertFloat32ToBFloat16(
- layer->m_Weight->template GetConstTensor<float>(),
- info.GetNumElements(),
- newValues.data());
-
- TensorInfo newInfo(info);
- newInfo.SetDataType(DataType::BFloat16);
- ConstTensor newInput(newInfo, newValues);
- layer->m_Weight.reset(new ScopedTensorHandle(newInput));
- }
- }
- return layer;
-}
-
-class ConvertFp32NetworkToBf16Impl
-{
-public:
-
- void Run(Graph& graph, Layer& layer) const
- {
- // Only convert Float32 To BFloat16 for the Input of Convolution2d layer and FullyConnected layer.
- // And also convert weight data type from Float32 to Bfloat16.
- // Do not convert bias data type.
- if (layer.GetType() == LayerType::Convolution2d)
- {
- if (layer.GetDataType() == DataType::Float32)
- {
- InsertConvertFp32ToBf16LayersBefore(graph,layer);
- ConvertWeight<Convolution2dLayer>(&layer);
- }
- }
- else if (layer.GetType() == LayerType::FullyConnected)
- {
- if (layer.GetDataType() == DataType::Float32)
- {
- InsertConvertFp32ToBf16LayersBefore(graph,layer);
- ConvertWeight<FullyConnectedLayer>(&layer);
- }
- }
- }
-
-protected:
- ConvertFp32NetworkToBf16Impl() = default;
- ~ConvertFp32NetworkToBf16Impl() = default;
-};
-
-using Fp32NetworkToBf16Converter = OptimizeForType<Layer, ConvertFp32NetworkToBf16Impl>;
-
-} // namespace optimizations
-} // namespace armnn
diff --git a/src/armnn/optimizations/FuseConvertFp32ToBf16IntoConstLayers.hpp b/src/armnn/optimizations/FuseConvertFp32ToBf16IntoConstLayers.hpp
deleted file mode 100644
index d112010539..0000000000
--- a/src/armnn/optimizations/FuseConvertFp32ToBf16IntoConstLayers.hpp
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#pragma once
-
-#include "Optimization.hpp"
-#include <armnnUtils/Permute.hpp>
-#include <ResolveType.hpp>
-
-namespace armnn
-{
-namespace optimizations
-{
-
-class FuseConvertFp32ToBf16IntoConstLayers
-{
-public:
- void Run(Graph& graph, InputSlot& connection) const
- {
- Layer& base = connection.GetConnectedOutputSlot()->GetOwningLayer();
- Layer& child = connection.GetOwningLayer();
-
- ARMNN_ASSERT(base.GetType() == LayerType::Constant);
- ARMNN_ASSERT(child.GetType() == LayerType::ConvertFp32ToBf16);
-
- auto dataType = base.GetDataType();
- switch (dataType)
- {
- case DataType::Float32:
- ReplaceConvertFp32ToBf16Layer<DataType::BFloat16>(
- graph,
- PolymorphicDowncast<ConstantLayer*>(&base),
- PolymorphicDowncast<ConvertFp32ToBf16Layer*>(&child));
- break;
- default:
- throw InvalidArgumentException(GetDataTypeName(dataType) +
- std::string(" Constant Layer cannot be fused into ") +
- GetDataTypeName(child.GetDataType()) +
- std::string(" conversion layer."));
- }
- }
-protected:
- FuseConvertFp32ToBf16IntoConstLayers() = default;
- ~FuseConvertFp32ToBf16IntoConstLayers() = default;
-private:
- template<armnn::DataType ArmnnType,
- typename T = armnn::ResolveType<ArmnnType>>
- static void ReplaceConvertFp32ToBf16Layer(Graph& graph,
- ConstantLayer* constantLayer,
- ConvertFp32ToBf16Layer* convertFp32ToBf16layer)
- {
- IgnoreUnused(graph);
- /**
- * This optimisation is to find situations where a constant set of inputs is being provided to a
- * ConvertFp32ToBf16 layer. In this case we don't want the overhead of Converting the values on
- * every inference, instead we want to Convert them once and store them in a Const layer to be
- * used everytime as they will not change.
- */
- TensorInfo outputConvertFp32ToBf16Info = convertFp32ToBf16layer->GetOutputSlot(0).GetTensorInfo();
- std::vector<T> newValues(outputConvertFp32ToBf16Info.GetNumElements());
-
- armnnUtils::FloatingPointConverter::ConvertFloat32ToBFloat16(
- constantLayer->m_LayerOutput->GetConstTensor<float>(),
- outputConvertFp32ToBf16Info.GetNumElements(),
- newValues.data());
- TensorInfo newInfo = outputConvertFp32ToBf16Info;
- newInfo.SetConstant(true);
- ConstTensor newInput(newInfo, newValues);
-
- constantLayer->m_LayerOutput.reset(new ScopedTensorHandle(newInput));
-
- // Moves connections in convertFp32ToBf16layer output slot to the constant layer.
- // ConvertFp32ToBf16layer layer will be removed if left unconnected.
- convertFp32ToBf16layer->GetOutputSlot().MoveAllConnections(constantLayer->GetOutputSlot());
-
- // Updating the output tensor
- constantLayer->GetOutputSlot(0).SetTensorInfo(newInfo);
- ARMNN_ASSERT(constantLayer->GetOutputSlot(0).GetTensorInfo().IsConstant() == true);
- }
-};
-
-using FuseConversionLayersIntoConstLayers = OptimizeForConnection<ConstantLayer,
- ConvertFp32ToBf16Layer,
- FuseConvertFp32ToBf16IntoConstLayers>;
-
-} // namespace optimizations
-} // namespace armnn \ No newline at end of file
diff --git a/src/armnn/test/FloatingPointConverterTest.cpp b/src/armnn/test/FloatingPointConverterTest.cpp
index 21a16a3cc0..81384cefae 100644
--- a/src/armnn/test/FloatingPointConverterTest.cpp
+++ b/src/armnn/test/FloatingPointConverterTest.cpp
@@ -5,7 +5,6 @@
#include <armnnUtils/FloatingPointConverter.hpp>
-#include <BFloat16.hpp>
#include <Half.hpp>
#include <vector>
@@ -55,73 +54,4 @@ TEST_CASE("TestConvertFp16ToFp32")
}
}
-TEST_CASE("TestConvertFloat32ToBFloat16")
-{
- float floatArray[] = { 1.704735E38f, // 0x7F004000 round down
- 0.0f, // 0x00000000 round down
- 2.2959E-41f, // 0x00004000 round down
- 1.7180272E38f, // 0x7F014000 round down
- 9.18355E-41f, // 0x00010000 round down
- 1.14794E-40f, // 0x00014000 round down
- 4.5918E-41f, // 0x00008000 round down
- -1.708058E38f, // 0xFF008000 round down
- -4.3033756E37f, // 0xFE018000 round up
- 1.60712E-40f, // 0x0001C000 round up
- -2.0234377f, // 0xC0018001 round up
- -1.1800863E-38f,// 0x80808001 round up
- 4.843037E-35f, // 0x0680C000 round up
- 3.9999998f, // 0x407FFFFF round up
- std::numeric_limits<float>::max(), // 0x7F7FFFFF max positive value
- std::numeric_limits<float>::lowest(), // 0xFF7FFFFF max negative value
- 1.1754942E-38f, // 0x007FFFFF min positive value
- -1.1754942E-38f // 0x807FFFFF min negative value
- };
- uint16_t expectedResult[] = { 0x7F00,
- 0x0000,
- 0x0000,
- 0x7F01,
- 0x0001,
- 0x0001,
- 0x0000,
- 0xFF00,
- 0xFE02,
- 0x0002,
- 0xC002,
- 0x8081,
- 0x0681,
- 0x4080,
- 0x7F80,
- 0xFF80,
- 0x0080,
- 0x8080
- };
- size_t numFloats = sizeof(floatArray) / sizeof(floatArray[0]);
-
- std::vector<armnn::BFloat16> convertedBuffer(numFloats);
-
- armnnUtils::FloatingPointConverter::ConvertFloat32ToBFloat16(floatArray, numFloats, convertedBuffer.data());
-
- for (size_t i = 0; i < numFloats; i++)
- {
- armnn::BFloat16 actual = convertedBuffer[i];
- CHECK_EQ(expectedResult[i], actual.Val());
- }
-}
-
-TEST_CASE("TestConvertBFloat16ToFloat32")
-{
- uint16_t bf16Array[] = { 16256, 16320, 38699, 16384, 49156, 32639 };
- size_t numFloats = sizeof(bf16Array) / sizeof(bf16Array[0]);
- float expectedResult[] = { 1.0f, 1.5f, -5.525308E-25f, 2.0f, -2.0625f, 3.3895314E38f };
- std::vector<float> convertedBuffer(numFloats, 0.0f);
-
- armnnUtils::FloatingPointConverter::ConvertBFloat16ToFloat32(bf16Array, numFloats, convertedBuffer.data());
-
- for (size_t i = 0; i < numFloats; i++)
- {
- float actual = convertedBuffer[i];
- CHECK_EQ(expectedResult[i], actual);
- }
-}
-
}
diff --git a/src/armnn/test/ShapeInferenceTests.cpp b/src/armnn/test/ShapeInferenceTests.cpp
index a3800ade09..1035a3b6fd 100644
--- a/src/armnn/test/ShapeInferenceTests.cpp
+++ b/src/armnn/test/ShapeInferenceTests.cpp
@@ -250,17 +250,6 @@ TEST_CASE("ConstantTest")
CHECK(layer->GetOutputSlot(0).GetTensorInfo().GetShape() == outputShape);
}
-TEST_CASE("ConvertBf16ToFp32Test")
-{
- CreateGraphAndRunTest<ConvertBf16ToFp32Layer>({{ 5, 7, 6, 2 }}, {{ 5, 7, 6, 2 }}, "floor");
-}
-
-TEST_CASE("ConvertFp16ToBf16Test")
-{
- const TensorShape tensorShape{5, 7, 6, 2};
- CreateGraphAndRunTest<ConvertFp32ToBf16Layer>({{ 5, 7, 6, 2 }}, {{ 5, 7, 6, 2 }}, "floor");
-}
-
TEST_CASE("ConvertFp16ToFp32Test")
{
CreateGraphAndRunTest<ConvertFp16ToFp32Layer>({{ 5, 7, 6, 2 }}, {{ 5, 7, 6, 2 }}, "floor");
diff --git a/src/armnn/test/UtilsTests.cpp b/src/armnn/test/UtilsTests.cpp
index 63884374b3..067c8612fe 100644
--- a/src/armnn/test/UtilsTests.cpp
+++ b/src/armnn/test/UtilsTests.cpp
@@ -123,54 +123,6 @@ TEST_CASE("BFloatType")
CHECK((GetDataTypeName(armnn::DataType::BFloat16) == std::string("BFloat16")));
}
-TEST_CASE("Float32ToBFloat16Test")
-{
- // LSB = 0, R = 0 -> round down
- armnn::BFloat16 roundDown0 = armnn::BFloat16::Float32ToBFloat16(1.704735E38f); // 0x7F004000
- CHECK_EQ(roundDown0.Val(), 0x7F00);
- // LSB = 1, R = 0 -> round down
- armnn::BFloat16 roundDown1 = armnn::BFloat16::Float32ToBFloat16(9.18355E-41f); // 0x00010000
- CHECK_EQ(roundDown1.Val(), 0x0001);
- // LSB = 0, R = 1 all 0 -> round down
- armnn::BFloat16 roundDown2 = armnn::BFloat16::Float32ToBFloat16(1.14794E-40f); // 0x00014000
- CHECK_EQ(roundDown2.Val(), 0x0001);
- // LSB = 1, R = 1 -> round up
- armnn::BFloat16 roundUp = armnn::BFloat16::Float32ToBFloat16(-2.0234377f); // 0xC0018001
- CHECK_EQ(roundUp.Val(), 0xC002);
- // LSB = 0, R = 1 -> round up
- armnn::BFloat16 roundUp1 = armnn::BFloat16::Float32ToBFloat16(4.843037E-35f); // 0x0680C000
- CHECK_EQ(roundUp1.Val(), 0x0681);
- // Max positive value -> infinity
- armnn::BFloat16 maxPositive = armnn::BFloat16::Float32ToBFloat16(std::numeric_limits<float>::max()); // 0x7F7FFFFF
- CHECK_EQ(maxPositive, armnn::BFloat16::Inf());
- // Max negative value -> -infinity
- armnn::BFloat16 maxNeg = armnn::BFloat16::Float32ToBFloat16(std::numeric_limits<float>::lowest()); // 0xFF7FFFFF
- CHECK_EQ(maxNeg.Val(), 0xFF80);
- // Min positive value
- armnn::BFloat16 minPositive = armnn::BFloat16::Float32ToBFloat16(1.1754942E-38f); // 0x007FFFFF
- CHECK_EQ(minPositive.Val(), 0x0080);
- // Min negative value
- armnn::BFloat16 minNeg = armnn::BFloat16::Float32ToBFloat16(-1.1754942E-38f); // 0x807FFFFF
- CHECK_EQ(minNeg.Val(), 0x8080);
-}
-
-TEST_CASE("BFloat16ToFloat32Test")
-{
- armnn::BFloat16 bf0(1.5f);
- CHECK_EQ(bf0.ToFloat32(), 1.5f);
- armnn::BFloat16 bf1(-5.525308E-25f);
- CHECK_EQ(bf1.ToFloat32(), -5.525308E-25f);
- armnn::BFloat16 bf2(-2.0625f);
- CHECK_EQ(bf2.ToFloat32(), -2.0625f);
- uint16_t v = 32639;
- armnn::BFloat16 bf3(v);
- CHECK_EQ(bf3.ToFloat32(), 3.3895314E38f);
- // Infinity
- CHECK_EQ(armnn::BFloat16::Inf().ToFloat32(), std::numeric_limits<float>::infinity());
- // NaN
- CHECK(std::isnan(armnn::BFloat16::Nan().ToFloat32()));
-}
-
TEST_CASE("GraphTopologicalSortSimpleTest")
{
std::map<int, std::vector<int>> graph;
diff --git a/src/armnn/test/optimizations/ConvertConstantsBFloatTests.cpp b/src/armnn/test/optimizations/ConvertConstantsBFloatTests.cpp
deleted file mode 100644
index 4aacf7f4fe..0000000000
--- a/src/armnn/test/optimizations/ConvertConstantsBFloatTests.cpp
+++ /dev/null
@@ -1,128 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include <TestUtils.hpp>
-
-#include <BFloat16.hpp>
-#include <Optimizer.hpp>
-
-#include <doctest/doctest.h>
-
-using namespace armnn;
-
-TEST_SUITE("Optimizer")
-{
-using namespace armnn::optimizations;
-
-TEST_CASE("ConvertConstantsFloatToBFloatTest")
-{
- armnn::Graph graph;
-
- const armnn::TensorInfo info({ 1, 1, 1, 2 }, armnn::DataType::BFloat16);
-
- // Create const tensor from fp32 data
- unsigned int dims[] = { 4, 2, 1, 1 };
- std::vector<float> floatWeights{ 0.0f, -1.0f,
- 3.8f, // 0x40733333 Round down
- 3.1055E+29f, // 0x707ADC3C Round up
- 9.149516E-10f, // 0x307B7FFF Round down
- -3.8f, // 0xC0733333 Round down
- -3.1055E+29f, // 0xF07ADC3C Round up
- -9.149516E-10f // 0xB07B7FFF Round down
- };
- armnn::ConstTensor weights(armnn::TensorInfo(4, dims, armnn::DataType::Float32, 0.0f, 0, true), floatWeights);
-
- // Create simple test network
- auto input = graph.AddLayer<armnn::InputLayer>(0, "input");
- input->GetOutputSlot().SetTensorInfo(info);
-
- auto fc = graph.AddLayer<armnn::FullyConnectedLayer>(armnn::FullyConnectedDescriptor(), "fc");
- fc->m_Weight = std::make_unique<armnn::ScopedTensorHandle>(weights);
- fc->GetOutputSlot().SetTensorInfo(info);
-
- auto output = graph.AddLayer<armnn::OutputLayer>(1, "output");
-
- // Connect up the layers
- input->GetOutputSlot().Connect(fc->GetInputSlot(0));
- fc->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- // Check tensor data type before conversion
- CHECK(fc->m_Weight->GetTensorInfo().GetDataType() == armnn::DataType::Float32);
-
- // Run the optimizer
- armnn::Optimizer::Pass(graph, armnn::MakeOptimizations(ConvertConstantsFloatToBFloat()));
-
- // Check tensor data type after conversion
- CHECK(fc->m_Weight->GetTensorInfo().GetDataType() == armnn::DataType::BFloat16);
-
- // Check whether data matches expected Bf16 data
- const BFloat16* data = fc->m_Weight->GetConstTensor<BFloat16>();
- CHECK(data[0] == BFloat16(0.0f));
- CHECK(data[1] == BFloat16(-1.0f));
- CHECK(data[2] == BFloat16(3.796875f)); // 0x4073
- CHECK(data[3] == BFloat16(3.1072295E29f)); // 0x707B
- CHECK(data[4] == BFloat16(9.131327E-10f)); // 0x307B
- CHECK(data[5] == BFloat16(-3.796875f)); // 0xC073
- CHECK(data[6] == BFloat16(-3.1072295E29f)); // 0xF07B
- CHECK(data[7] == BFloat16(-9.131327E-10f)); // 0xB07B
-}
-
-TEST_CASE("ConvertConstantsBFloatToFloatTest")
-{
- armnn::Graph graph;
-
- const armnn::TensorInfo info({ 1, 1, 1, 2 }, armnn::DataType::Float32);
-
- // Create the BFloat16 precision input data
- unsigned int dims[] = { 4, 2, 1, 1 };
- std::vector<float> convWeightsData{ 0.f, -1.f,
- 3.796875f, // 0x4073
- 3.1072295E29f, // 0x707B
- 9.131327E-10f, // 0x307B
- -3.796875f, // 0xC073
- -3.1072295E29f, // 0xF07B
- -9.131327E-10f // 0xB07B
- };
- std::vector<uint16_t> bfWeights(8);
- armnnUtils::FloatingPointConverter::ConvertFloat32ToBFloat16(convWeightsData.data(), convWeightsData.size(),
- bfWeights.data());
- armnn::ConstTensor weights(armnn::TensorInfo(4, dims, armnn::DataType::BFloat16, 0.0f, 0, true), bfWeights);
-
- //Create the simple test network
- auto input = graph.AddLayer<armnn::InputLayer>(0, "input");
- input->GetOutputSlot().SetTensorInfo(info);
-
- auto fc = graph.AddLayer<armnn::FullyConnectedLayer>(armnn::FullyConnectedDescriptor(), "fc");
- fc->m_Weight = std::make_unique<armnn::ScopedTensorHandle>(weights);
- fc->GetOutputSlot().SetTensorInfo(info);
-
- auto output = graph.AddLayer<armnn::OutputLayer>(1, "output");
-
- //Connect up the layers
- input->GetOutputSlot().Connect(fc->GetInputSlot(0));
- fc->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- //Test the tensor info is correct.
- CHECK(fc->m_Weight->GetTensorInfo().GetDataType() == armnn::DataType::BFloat16);
-
- // Run the optimizer
- armnn::Optimizer::Pass(graph, armnn::MakeOptimizations(ConvertConstantsBFloatToFloat()));
-
- //Test the tensor info is correct.
- CHECK(fc->m_Weight->GetTensorInfo().GetDataType() == armnn::DataType::Float32);
-
- // Now test the data matches float32 data
- const float* data = fc->m_Weight->GetConstTensor<float>();
- CHECK(data[0] == 0.0f);
- CHECK(data[1] == -1.0f);
- CHECK(data[2] == 3.796875f);
- CHECK(data[3] == 3.1072295E29f);
- CHECK(data[4] == 9.131327E-10f);
- CHECK(data[5] == -3.796875f);
- CHECK(data[6] == -3.1072295E29f);
- CHECK(data[7] == -9.131327E-10f);
-}
-
-} \ No newline at end of file
diff --git a/src/armnn/test/optimizations/Fp32NetworkToBf16ConverterTests.cpp b/src/armnn/test/optimizations/Fp32NetworkToBf16ConverterTests.cpp
deleted file mode 100644
index 66893ce1f5..0000000000
--- a/src/armnn/test/optimizations/Fp32NetworkToBf16ConverterTests.cpp
+++ /dev/null
@@ -1,229 +0,0 @@
-//
-// Copyright © 2020 Arm Ltd. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include <TestUtils.hpp>
-
-#include <Optimizer.hpp>
-
-#include <doctest/doctest.h>
-
-TEST_SUITE("Optimizer")
-{
-using namespace armnn::optimizations;
-
-TEST_CASE("Fp32NetworkToBf16OptimizationNoConversionTest")
-{
- armnn::Graph graph;
-
- const armnn::TensorInfo infoFP32({ 2, 2, 1, 3 }, armnn::DataType::Float32);
-
- // Create the simple test network without Conv2D/FullyConnected.
- auto input = graph.AddLayer<armnn::InputLayer>(0, "input");
- input->GetOutputSlot().SetTensorInfo(infoFP32);
-
- auto floor = graph.AddLayer<armnn::FloorLayer>("floor");
- floor->GetOutputSlot().SetTensorInfo(infoFP32);
-
- auto output = graph.AddLayer<armnn::OutputLayer>(1, "output");
-
- // Connect up the layers
- input->GetOutputSlot().Connect(floor->GetInputSlot(0));
- floor->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(), &IsLayerOfType<armnn::InputLayer>,
- &IsLayerOfType<armnn::FloorLayer>, &IsLayerOfType<armnn::OutputLayer>));
-
- // Run the optimizer
- armnn::Optimizer::Pass(graph, armnn::MakeOptimizations(Fp32NetworkToBf16Converter()));
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(), &IsLayerOfType<armnn::InputLayer>,
- &IsLayerOfType<armnn::FloorLayer>,
- &IsLayerOfType<armnn::OutputLayer>));
-}
-
-TEST_CASE("Fp32NetworkToBf16OptimizationConv2DTest")
-{
- armnn::Graph graph;
-
- const armnn::TensorInfo infoFP32({ 2, 3, 8, 1 }, armnn::DataType::Float32);
-
- // Create const tensor fp32 data
- unsigned int dims[] = { 4, 2, 1, 1 };
- std::vector<float> floatWeights{ 0.0f, -1.0f,
- 3.8f, // 0x40733333 Round down
- 3.1055E+29f, // 0x707ADC3C Round up
- 9.149516E-10f, // 0x307B7FFF Round down
- -3.8f, // 0xC0733333 Round down
- -3.1055E+29f, // 0xF07ADC3C Round up
- -9.149516E-10f // 0xB07B7FFF Round down
- };
- armnn::ConstTensor weights(armnn::TensorInfo(4, dims, armnn::DataType::Float32, 0.0f, 0, true), floatWeights);
-
- // Create const bias fp32 data
- unsigned int biasDims[] {4};
- std::vector<float> floatBias{ 1.0f, 2.0f, 3.0f, 4.0f };
- armnn::ConstTensor bias(armnn::TensorInfo(1, biasDims, armnn::DataType::Float32, 0.0f, 0, true), floatBias);
-
- // A network with Convolution2d layer
- auto input = graph.AddLayer<armnn::InputLayer>(0, "input");
- input->GetOutputSlot().SetTensorInfo(infoFP32);
-
- armnn::Convolution2dDescriptor descriptor;
- descriptor.m_BiasEnabled = true;
- auto conv = graph.AddLayer<armnn::Convolution2dLayer>(descriptor, "conv2d");
- conv->GetOutputSlot().SetTensorInfo(infoFP32);
-
- auto weightsLayer = graph.AddLayer<armnn::ConstantLayer>("Weights");
- weightsLayer->m_LayerOutput = std::make_shared<armnn::ScopedTensorHandle>(weights);
- weightsLayer->GetOutputSlot(0).SetTensorInfo(weightsLayer->m_LayerOutput->GetTensorInfo());
-
- auto biasLayer = graph.AddLayer<armnn::ConstantLayer>("Bias");
- biasLayer->m_LayerOutput = std::make_shared<armnn::ScopedTensorHandle>(bias);
- biasLayer->GetOutputSlot(0).SetTensorInfo(biasLayer->m_LayerOutput->GetTensorInfo());
-
- auto output = graph.AddLayer<armnn::OutputLayer>(1, "output");
-
- // Connect up the layers
- input->GetOutputSlot().Connect(conv->GetInputSlot(0));
- weightsLayer->GetOutputSlot(0).Connect(conv->GetInputSlot(1));
- biasLayer->GetOutputSlot(0).Connect(conv->GetInputSlot(2));
- conv->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(), &IsLayerOfType<armnn::InputLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::Convolution2dLayer>,
- &IsLayerOfType<armnn::OutputLayer>));
-
- // Run the optimizer
- armnn::Optimizer::Pass(graph, armnn::MakeOptimizations(RedirectMembersToConstantInputs(),
- Fp32NetworkToBf16Converter()));
-
- CHECK(7 == graph.GetNumLayers());
- CHECK(CheckSequence(graph.cbegin(), graph.cend(), &IsLayerOfType<armnn::InputLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::ConvertFp32ToBf16Layer>,
- &IsLayerOfType<armnn::ConvertFp32ToBf16Layer>,
- &IsLayerOfType<armnn::Convolution2dLayer>,
- &IsLayerOfType<armnn::OutputLayer>));
-
- armnn::TensorInfo inputTensor = conv->GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
- armnn::TensorInfo weightTensor = conv->GetInputSlot(1).GetConnectedOutputSlot()->GetTensorInfo();
- armnn::TensorInfo biasTensor = conv->GetInputSlot(2).GetConnectedOutputSlot()->GetTensorInfo();
- armnn::TensorInfo outputTensor = conv->GetOutputSlot(0).GetTensorInfo();
- CHECK((conv->GetDataType() == armnn::DataType::BFloat16));
- CHECK((conv->m_Weight->GetTensorInfo().GetDataType() == armnn::DataType::BFloat16));
- CHECK((conv->m_Bias->GetTensorInfo().GetDataType() == armnn::DataType::Float32));
- CHECK((inputTensor.GetDataType() == armnn::DataType::BFloat16));
- CHECK((weightTensor.GetDataType() == armnn::DataType::BFloat16));
- CHECK((biasTensor.GetDataType() == armnn::DataType::Float32));
- CHECK((outputTensor.GetDataType() == armnn::DataType::Float32));
-
- // Check whether data matches expected Bf16 data
- const armnn::BFloat16* data = conv->m_Weight->GetConstTensor<armnn::BFloat16>();
- CHECK(data[0] == armnn::BFloat16(0.0f));
- CHECK(data[1] == armnn::BFloat16(-1.0f));
- CHECK(data[2] == armnn::BFloat16(3.796875f)); // 0x4073
- CHECK(data[3] == armnn::BFloat16(3.1072295E29f)); // 0x707B
- CHECK(data[4] == armnn::BFloat16(9.131327E-10f)); // 0x307B
- CHECK(data[5] == armnn::BFloat16(-3.796875f)); // 0xC073
- CHECK(data[6] == armnn::BFloat16(-3.1072295E29f)); // 0xF07B
- CHECK(data[7] == armnn::BFloat16(-9.131327E-10f)); // 0xB07B
-}
-
-TEST_CASE("Fp32NetworkToBf16OptimizationFullyConnectedTest")
-{
- armnn::Graph graph;
-
- const armnn::TensorInfo infoFP32({ 2, 3, 8, 1 }, armnn::DataType::Float32);
-
- // Create const tensor fp32 data
- unsigned int dims[] = { 4, 2, 1, 1 };
- std::vector<float> floatWeights{ 0.0f, -1.0f,
- 3.8f, // 0x40733333 Round down
- 3.1055E+29f, // 0x707ADC3C Round up
- 9.149516E-10f, // 0x307B7FFF Round down
- -3.8f, // 0xC0733333 Round down
- -3.1055E+29f, // 0xF07ADC3C Round up
- -9.149516E-10f // 0xB07B7FFF Round down
- };
- armnn::ConstTensor weights(armnn::TensorInfo(4, dims, armnn::DataType::Float32, 0.0f, 0, true), floatWeights);
-
- // Create const bias fp32 data
- unsigned int biasDims[] {4};
- std::vector<float> floatBias{ 1.0f, 2.0f, 3.0f, 4.0f };
- armnn::ConstTensor bias(armnn::TensorInfo(1, biasDims, armnn::DataType::Float32, 0.0f, 0, true), floatBias);
-
- // A network with FullyConnected layer
- auto input = graph.AddLayer<armnn::InputLayer>(0, "input");
- input->GetOutputSlot().SetTensorInfo(infoFP32);
-
- armnn::FullyConnectedDescriptor descriptor;
- descriptor.m_BiasEnabled = true;
-
- auto fc = graph.AddLayer<armnn::FullyConnectedLayer>(descriptor, "fully");
- fc->GetOutputSlot().SetTensorInfo(infoFP32);
-
- auto weightsLayer = graph.AddLayer<armnn::ConstantLayer>("Weights");
- weightsLayer->m_LayerOutput = std::make_shared<armnn::ScopedTensorHandle>(weights);
- weightsLayer->GetOutputSlot(0).SetTensorInfo(weightsLayer->m_LayerOutput->GetTensorInfo());
-
- auto biasLayer = graph.AddLayer<armnn::ConstantLayer>("Bias");
- biasLayer->m_LayerOutput = std::make_shared<armnn::ScopedTensorHandle>(bias);
- biasLayer->GetOutputSlot(0).SetTensorInfo(biasLayer->m_LayerOutput->GetTensorInfo());
-
- auto output = graph.AddLayer<armnn::OutputLayer>(1, "output");
-
- // Connect up the layers
- input->GetOutputSlot().Connect(fc->GetInputSlot(0));
- weightsLayer->GetOutputSlot(0).Connect(fc->GetInputSlot(1));
- biasLayer->GetOutputSlot(0).Connect(fc->GetInputSlot(2));
- fc->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(), &IsLayerOfType<armnn::InputLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::FullyConnectedLayer>,
- &IsLayerOfType<armnn::OutputLayer>));
-
- // Run the optimizer
- armnn::Optimizer::Pass(graph, armnn::MakeOptimizations(RedirectMembersToConstantInputs(),
- Fp32NetworkToBf16Converter()));
-
- CHECK(7 == graph.GetNumLayers());
- CHECK(CheckSequence(graph.cbegin(), graph.cend(), &IsLayerOfType<armnn::InputLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::ConstantLayer>,
- &IsLayerOfType<armnn::ConvertFp32ToBf16Layer>,
- &IsLayerOfType<armnn::ConvertFp32ToBf16Layer>,
- &IsLayerOfType<armnn::FullyConnectedLayer>,
- &IsLayerOfType<armnn::OutputLayer>));
-
- armnn::TensorInfo inputTensor = fc->GetInputSlot(0).GetConnectedOutputSlot()->GetTensorInfo();
- armnn::TensorInfo weightTensor = fc->GetInputSlot(1).GetConnectedOutputSlot()->GetTensorInfo();
- armnn::TensorInfo biasTensor = fc->GetInputSlot(2).GetConnectedOutputSlot()->GetTensorInfo();
- armnn::TensorInfo outputTensor = fc->GetOutputSlot(0).GetTensorInfo();
- CHECK((fc->GetDataType() == armnn::DataType::BFloat16));
- CHECK((fc->m_Weight->GetTensorInfo().GetDataType() == armnn::DataType::BFloat16));
- CHECK((fc->m_Bias->GetTensorInfo().GetDataType() == armnn::DataType::Float32));
- CHECK((inputTensor.GetDataType() == armnn::DataType::BFloat16));
- CHECK((weightTensor.GetDataType() == armnn::DataType::BFloat16));
- CHECK((biasTensor.GetDataType() == armnn::DataType::Float32));
- CHECK((outputTensor.GetDataType() == armnn::DataType::Float32));
-
- // Check whether data matches expected Bf16 data
- const armnn::BFloat16* data = fc->m_Weight->GetConstTensor<armnn::BFloat16>();
- CHECK(data[0] == armnn::BFloat16(0.0f));
- CHECK(data[1] == armnn::BFloat16(-1.0f));
- CHECK(data[2] == armnn::BFloat16(3.796875f)); // 0x4073
- CHECK(data[3] == armnn::BFloat16(3.1072295E29f)); // 0x707B
- CHECK(data[4] == armnn::BFloat16(9.131327E-10f)); // 0x307B
- CHECK(data[5] == armnn::BFloat16(-3.796875f)); // 0xC073
- CHECK(data[6] == armnn::BFloat16(-3.1072295E29f)); // 0xF07B
- CHECK(data[7] == armnn::BFloat16(-9.131327E-10f)); // 0xB07B
-}
-
-} \ No newline at end of file
diff --git a/src/armnn/test/optimizations/FuseConvertF32BF16IntoConstLayerTests.cpp b/src/armnn/test/optimizations/FuseConvertF32BF16IntoConstLayerTests.cpp
deleted file mode 100644
index 93d5948d61..0000000000
--- a/src/armnn/test/optimizations/FuseConvertF32BF16IntoConstLayerTests.cpp
+++ /dev/null
@@ -1,151 +0,0 @@
-//
-// Copyright © 2022 Arm Ltd and Contributors. All rights reserved.
-// SPDX-License-Identifier: MIT
-//
-
-#include <LayersFwd.hpp>
-#include <Network.hpp>
-#include <NetworkUtils.hpp>
-#include <Optimizer.hpp>
-#include <TestUtils.hpp>
-
-#include <armnn/backends/TensorHandle.hpp>
-
-#include <doctest/doctest.h>
-
-TEST_SUITE("Optimizer")
-{
-using namespace armnn;
-using namespace armnn::optimizations;
-
-TEST_CASE("FuseConvertFp32Fp16intoConst")
-{
- Graph graph;
- const unsigned int shape[] = {1, 2, 2, 3};
-
- const TensorInfo constTensorInfo(4, shape, DataType::Float32, 1.0, 0, true);
- const TensorInfo outputConvertInfo(4, shape, DataType::BFloat16, 1.0, 0, true);
-
- ConstantLayer* constantLayer = graph.AddLayer<ConstantLayer>("constant");
- std::vector<float> constantValues(constTensorInfo.GetNumElements(), 3.1416f);
- ConstTensor constTensor(constTensorInfo, constantValues.data());
- constantLayer->m_LayerOutput = std::make_shared<ScopedTensorHandle>(constTensor);
- constantLayer->GetOutputSlot().SetTensorInfo(constTensorInfo);
-
- ConvertFp32ToBf16Layer* convertLayer = graph.AddLayer<ConvertFp32ToBf16Layer>("convert");
- convertLayer->GetOutputSlot().SetTensorInfo(outputConvertInfo);
-
- OutputLayer* output = graph.AddLayer<OutputLayer>(0, "output");
-
- // Connect up constant -> convert -> output
- constantLayer->GetOutputSlot().Connect(convertLayer->GetInputSlot(0));
- convertLayer->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- auto checkConstantFloat32 = [](const armnn::Layer *const layer) -> bool {
- return IsLayerOfType<ConstantLayer>(layer) &&
- (layer->GetDataType() == DataType::Float32);
- };
- auto checkConstantBFloat16 = [](const armnn::Layer *const layer) -> bool {
- return IsLayerOfType<ConstantLayer>(layer) &&
- (layer->GetDataType() == DataType::BFloat16);
- };
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(),
- checkConstantFloat32,
- &IsLayerOfType<ConvertFp32ToBf16Layer>,
- &IsLayerOfType<OutputLayer>));
-
- armnn::Optimizer::Pass(graph, MakeOptimizations(FuseConversionLayersIntoConstLayers()));
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(),
- checkConstantBFloat16,
- &IsLayerOfType<OutputLayer>));
-}
-
-TEST_CASE("RevertConstantWeightsToFP32")
-{
- Graph graph;
- const unsigned int shape[] = {1, 2, 2, 3};
-
- const TensorInfo constTensorInfo(4, shape, DataType::Float32, 1.0, 0, true);
- const TensorInfo outputConvertInfo(4, shape, DataType::BFloat16, 1.0, 0, true);
-
- TensorInfo inputInfo(4, shape, DataType::Float32);
- auto* input = graph.AddLayer<InputLayer>(0, "input0");
- input->GetOutputSlot().SetTensorInfo(inputInfo);
-
- auto* constantLayer = graph.AddLayer<ConstantLayer>("constant");
- std::vector<float> constantValues(constTensorInfo.GetNumElements(), 3.1416f);
- ConstTensor constTensor(constTensorInfo, constantValues.data());
- constantLayer->m_LayerOutput = std::make_shared<ScopedTensorHandle>(constTensor);
- constantLayer->GetOutputSlot().SetTensorInfo(constTensorInfo);
-
- ConvertFp32ToBf16Layer* convertLayerInputs = graph.AddLayer<ConvertFp32ToBf16Layer>("convert");
- convertLayerInputs->GetOutputSlot().SetTensorInfo(outputConvertInfo);
- ConvertFp32ToBf16Layer* convertLayerWeights = graph.AddLayer<ConvertFp32ToBf16Layer>("convert2");
- convertLayerWeights->GetOutputSlot().SetTensorInfo(outputConvertInfo);
- ConvertFp32ToBf16Layer* convertLayerBiases = graph.AddLayer<ConvertFp32ToBf16Layer>("convert3");
- convertLayerBiases->GetOutputSlot().SetTensorInfo(outputConvertInfo);
-
- auto* biases = graph.AddLayer<armnn::ConstantLayer>("Biases");
- biases->m_LayerOutput = std::make_unique<armnn::ScopedTensorHandle>(constTensor);
- biases->GetOutputSlot().SetTensorInfo(constTensorInfo);
-
- armnn::Convolution2dDescriptor descriptor;
- descriptor.m_BiasEnabled = true;
- auto* conv = graph.AddLayer<armnn::Convolution2dLayer>(descriptor, "conv2d");
- const armnn::TensorInfo infoFP32({ 2, 3, 8, 1 }, armnn::DataType::Float32);
- conv->GetOutputSlot().SetTensorInfo(infoFP32);
-
- auto* output = graph.AddLayer<OutputLayer>(0, "output");
-
- // Connect up Input -> Convert ->
- // Constant -> Convert -> Conv2d -> Output
- // Constant -> Convert ->
- input->GetOutputSlot().Connect(convertLayerInputs->GetInputSlot(0));
- constantLayer->GetOutputSlot().Connect(convertLayerWeights->GetInputSlot(0));
- biases->GetOutputSlot().Connect(convertLayerBiases->GetInputSlot(0));
-
- convertLayerInputs->GetOutputSlot().Connect(conv->GetInputSlot(0));
- convertLayerWeights->GetOutputSlot().Connect(conv->GetInputSlot(1));
- convertLayerBiases->GetOutputSlot().Connect(conv->GetInputSlot(2));
-
- conv->GetOutputSlot().Connect(output->GetInputSlot(0));
-
- auto checkConstantFloat32 = [](const armnn::Layer *const layer) -> bool {
- return IsLayerOfType<ConstantLayer>(layer) &&
- (layer->GetDataType() == DataType::Float32);
- };
- auto checkConstantBFloat16 = [](const armnn::Layer *const layer) -> bool {
- return IsLayerOfType<ConstantLayer>(layer) &&
- (layer->GetDataType() == DataType::BFloat16);
- };
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(),
- &IsLayerOfType<InputLayer>,
- checkConstantFloat32,
- checkConstantFloat32,
- &IsLayerOfType<ConvertFp32ToBf16Layer>,
- &IsLayerOfType<ConvertFp32ToBf16Layer>,
- &IsLayerOfType<ConvertFp32ToBf16Layer>,
- &IsLayerOfType<Convolution2dLayer>,
- &IsLayerOfType<OutputLayer>));
-
- armnn::Optimizer::Pass(graph, MakeOptimizations(FuseConversionLayersIntoConstLayers()));
-
- bool revert = RevertConstantWeightsToFP32(conv);
-
- // Erase unconnected layer as occurs during Topological Sort.
- graph.EraseLayer(convertLayerInputs);
-
- CHECK(revert);
- CHECK(constantLayer->GetDataType() == DataType::Float32);
-
- CHECK(CheckSequence(graph.cbegin(), graph.cend(),
- &IsLayerOfType<InputLayer>,
- checkConstantBFloat16,
- checkConstantFloat32,
- &IsLayerOfType<Convolution2dLayer>,
- &IsLayerOfType<OutputLayer>));
-}
-}