onert::exec::EdgeTensor Class Reference

#include <EdgeTensor.h>

Collaboration diagram for onert::exec::EdgeTensor:

Public Member Functions
	EdgeTensor (const ir::OperandInfo &info, ir::Layout layout)
	~EdgeTensor ()=default
uint8_t *	buffer () const override
ir::Layout	layout () const
void	set_dynamic () override
	set this tensor dynamic
bool	applyShape (const ir::Shape &new_shape) override
	Set the shape to shape and possibly re-allocate the buffer.
void	setShape (const ir::Shape &new_shape) override
	Set the shape of tenser to new_shape.
void	allocate_buffer ()
void	increase_ref ()
void	decrease_ref ()
Public Member Functions inherited from onert::backend::IPortableTensor
	IPortableTensor (const ir::OperandInfo &info)
virtual	~IPortableTensor ()
const ir::OperandInfo &	get_info () const
const ir::Sparsity *	sparsity () const
size_t	total_size () const override final
size_t	calcOffset (const ir::Coordinates &coords) const override final
ir::DataType	data_type () const override final
float	data_scale () const override final
int32_t	data_zero_point () const override final
const std::vector< float > &	data_scales () const override final
const std::vector< int32_t > &	data_zero_points () const override
bool	is_constant () const override final
	Return true if the tensor is constant.
bool	is_dynamic () const override final
	Return true if the tensor needs dynamic allocation, meaning that during compile-time the outpus shape cannot be known and the output shape is calculated during kernel execution-time.
ir::Shape	getShape () const override final
	Get ir::Shape of tensor.
bool	has_padding () const final
void	access (const std::function< void(ITensor &tensor)> &fn) final
Public Member Functions inherited from onert::backend::ITensor
virtual	~ITensor ()
virtual void	deallocBuffer ()
	Dealloc the buffer (only for dynamic tensors)
virtual bool	is_subtensor () const
virtual bool	needMemoryMap () const
virtual void	enqueueWriteBuffer (const void *, bool)
virtual void	enqueueReadBuffer (void *, bool)

Additional Inherited Members
Protected Attributes inherited from onert::backend::IPortableTensor
ir::OperandInfo	_info

Detailed Description

Definition at line 29 of file EdgeTensor.h.

Constructor & Destructor Documentation

EdgeTensor()

onert::exec::EdgeTensor::EdgeTensor ( const ir::OperandInfo &  info, ir::Layout  layout  )

inline

Definition at line 32 of file EdgeTensor.h.

    : IPortableTensor(info), _layout{layout}, _buffer{nullptr}, _ref_count{0}
  {
  }

~EdgeTensor()

onert::exec::EdgeTensor::~EdgeTensor ( )

default

Member Function Documentation

allocate_buffer()

void onert::exec::EdgeTensor::allocate_buffer ( )

inline

Definition at line 44 of file EdgeTensor.h.

  {
    const auto total_size = _info.total_size();
    _buffer = std::make_unique<uint8_t[]>(total_size);
    _ref_count = 1;
  }

References onert::backend::IPortableTensor::_info, onert::ir::OperandInfo::total_size(), and onert::backend::IPortableTensor::total_size().

applyShape()

bool onert::exec::EdgeTensor::applyShape ( const ir::Shape &  )

overridevirtual

Set the shape to shape and possibly re-allocate the buffer.

If a tensor is dynamic tensor and previously allocated memory exists, it will be deallocated. If a tensor is static tensor (with previously allocated memory by StaticTensorManager), buffer() will be overwriten

Parameters

shape

tensor's new shape. While allocating memory for this new_shape, tensor's shape is set to new_shape

Returns

true If applying shape is successful

false If not applying shape is not supported (it throws for other errors)

Reimplemented from onert::backend::ITensor.

Definition at line 24 of file EdgeTensor.cc.

{
  bool previously_dynamic = is_dynamic();
  if (!previously_dynamic || _buffer == nullptr)
  {
    // Always set shape - when buffer with same size was already allocated, shape could differ
    setShape(new_shape);
    set_dynamic();
    const auto total_size = get_info().total_size();
    _buffer = std::make_unique<uint8_t[]>(total_size);
  }
  else
  {
    auto previous_size = total_size();
    auto new_size = new_shape.num_elements() * ir::sizeOfDataType(data_type());
    if (previous_size != new_size)
    {
      setShape(new_shape);
      set_dynamic();
      const auto total_size = get_info().total_size();
      _buffer = std::make_unique<uint8_t[]>(total_size);
    }
    else
    { // when buffer with same size was already allocated, shape could differ
      setShape(new_shape);
    }
  }
  return true;
}

References onert::backend::IPortableTensor::data_type(), onert::backend::IPortableTensor::get_info(), onert::backend::IPortableTensor::is_dynamic(), set_dynamic(), setShape(), onert::ir::sizeOfDataType(), onert::ir::OperandInfo::total_size(), and onert::backend::IPortableTensor::total_size().

buffer()

uint8_t * onert::exec::EdgeTensor::buffer ( ) const

inlineoverridevirtual

Implements onert::backend::ITensor.

Definition at line 38 of file EdgeTensor.h.

{ return _buffer.get(); }

decrease_ref()

void onert::exec::EdgeTensor::decrease_ref ( )

inline

Definition at line 53 of file EdgeTensor.h.

  {
    assert(_ref_count > 0);
    _ref_count--;
    if (_ref_count == 0)
    {
      _buffer.reset();
    }
  }

increase_ref()

void onert::exec::EdgeTensor::increase_ref ( )

inline

Definition at line 51 of file EdgeTensor.h.

{ _ref_count++; }

layout()

ir::Layout onert::exec::EdgeTensor::layout ( ) const

inline

Definition at line 39 of file EdgeTensor.h.

{ return _layout; }

set_dynamic()

void onert::exec::EdgeTensor::set_dynamic ( )

inlineoverridevirtual

set this tensor dynamic

Reimplemented from onert::backend::ITensor.

Definition at line 40 of file EdgeTensor.h.

{ _info.setDynamic(); }

References onert::backend::IPortableTensor::_info, and onert::ir::OperandInfo::setDynamic().

Referenced by applyShape().

setShape()

void onert::exec::EdgeTensor::setShape ( const ir::Shape &  )

inlineoverridevirtual

Set the shape of tenser to new_shape.

Note

Higer dimension will be placed on front.

Reimplemented from onert::backend::ITensor.

Definition at line 42 of file EdgeTensor.h.

{ _info.shape(new_shape); }

References onert::backend::IPortableTensor::_info, and onert::ir::OperandInfo::shape().

Referenced by applyShape().

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

• runtime/onert/core/src/exec/EdgeTensor.h
• runtime/onert/core/src/exec/EdgeTensor.cc