GraphUtils.hpp File Reference

#include <Graph.hpp>
#include <string>

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Functions
bool	GraphHasNamedLayer (const armnn::Graph &graph, const std::string &name)
armnn::Layer *	GetFirstLayerWithName (armnn::Graph &graph, const std::string &name)
bool	CheckNumberOfInputSlot (armnn::Layer *layer, unsigned int num)
bool	CheckNumberOfOutputSlot (armnn::Layer *layer, unsigned int num)
bool	IsConnected (armnn::Layer *srcLayer, armnn::Layer *destLayer, unsigned int srcSlot, unsigned int destSlot, const armnn::TensorInfo &expectedTensorInfo)
bool	CheckOrder (const armnn::Graph &graph, const armnn::Layer *first, const armnn::Layer *second)
	Checks that first comes before second in the order.

Function Documentation

CheckNumberOfInputSlot()

bool CheckNumberOfInputSlot	(	armnn::Layer *	layer,
		unsigned int	num )

Definition at line 34 of file GraphUtils.cpp.

{
    return layer->GetNumInputSlots() == num;
}

References Layer::GetNumInputSlots().

CheckNumberOfOutputSlot()

bool CheckNumberOfOutputSlot	(	armnn::Layer *	layer,
		unsigned int	num )

Definition at line 39 of file GraphUtils.cpp.

{
    return layer->GetNumOutputSlots() == num;
}

References Layer::GetNumOutputSlots().

CheckOrder()

bool CheckOrder	(	const armnn::Graph &	graph,
		const armnn::Layer *	first,
		const armnn::Layer *	second )

Checks that first comes before second in the order.

Definition at line 68 of file GraphUtils.cpp.

{
    graph.Print();
 
    const auto& order = graph.TopologicalSort();
 
    auto firstPos = std::find(order.begin(), order.end(), first);
    auto secondPos = std::find(firstPos, order.end(), second);
 
    return (secondPos != order.end());
}

References Graph::Print(), and Graph::TopologicalSort().

GetFirstLayerWithName()

armnn::Layer * GetFirstLayerWithName	(	armnn::Graph &	graph,
		const std::string &	name )

Definition at line 22 of file GraphUtils.cpp.

{
    for (auto&& layer : graph)
    {
        if (layer->GetNameStr() == name)
        {
            return layer;
        }
    }
    return nullptr;
}

GraphHasNamedLayer()

bool GraphHasNamedLayer	(	const armnn::Graph &	graph,
		const std::string &	name )

Definition at line 10 of file GraphUtils.cpp.

{
    for (auto&& layer : graph)
    {
        if (layer->GetName() == name)
        {
            return true;
        }
    }
    return false;
}

IsConnected()

bool IsConnected	(	armnn::Layer *	srcLayer,
		armnn::Layer *	destLayer,
		unsigned int	srcSlot,
		unsigned int	destSlot,
		const armnn::TensorInfo &	expectedTensorInfo )

Definition at line 44 of file GraphUtils.cpp.

{
    const armnn::IOutputSlot& outputSlot = srcLayer->GetOutputSlot(srcSlot);
    const armnn::TensorInfo& tensorInfo = outputSlot.GetTensorInfo();
    if (expectedTensorInfo != tensorInfo)
    {
        return false;
    }
    const unsigned int numConnections = outputSlot.GetNumConnections();
    for (unsigned int c = 0; c < numConnections; ++c)
    {
        auto inputSlot = armnn::PolymorphicDowncast<const armnn::InputSlot*>(outputSlot.GetConnection(c));
        if (inputSlot->GetOwningLayer().GetNameStr() == destLayer->GetNameStr() &&
            inputSlot->GetSlotIndex() == destSlot)
        {
            return true;
        }
    }
    return false;
}

References IOutputSlot::GetConnection(), Layer::GetNameStr(), IOutputSlot::GetNumConnections(), Layer::GetOutputSlot(), IOutputSlot::GetTensorInfo(), and armnn::PolymorphicDowncast().