onert::backend::cpu::ops::SoftMaxLayer Class Reference

#include <SoftmaxLayer.h>

Collaboration diagram for onert::backend::cpu::ops::SoftMaxLayer:

Public Member Functions
	SoftMaxLayer ()
void	softmaxFloat32 ()
template<typename T >
void	softmaxQuant8 ()
void	configure (const IPortableTensor *input, const float beta, IPortableTensor *output)
void	run () override
Public Member Functions inherited from onert::exec::IFunction
virtual	~IFunction ()=default
virtual void	prepare ()

Protected Attributes
const IPortableTensor *	_input
IPortableTensor *	_output

Detailed Description

Definition at line 27 of file SoftmaxLayer.h.

Constructor & Destructor Documentation

SoftMaxLayer()

onert::backend::cpu::ops::SoftMaxLayer::SoftMaxLayer

(

)

Definition at line 52 of file SoftmaxLayer.cc.

                           : _input(nullptr), _output(nullptr), _beta(0.0)
{
  // DO NOTHING
}

Member Function Documentation

configure()

void onert::backend::cpu::ops::SoftMaxLayer::configure	(	const IPortableTensor *	input,
		const float	beta,
		IPortableTensor *	output
	)

Definition at line 108 of file SoftmaxLayer.cc.

{
  _input = input;
  _output = output;
  _beta = beta;
 
  if (_input->data_type() == OperandType::QUANT_UINT8_ASYMM ||
      _input->data_type() == OperandType::QUANT_INT8_ASYMM)
  {
#ifdef TFLITE_SOFTMAX_USE_UINT16_LUT
    // Only apply when both input & output are uint8/int8 & build with clang
    // on aarch64.
    nnfw::cker::PopulateSoftmaxUInt8LookupTable(_uint8_table1, _uint8_table2, _input->data_scale(),
                                                _beta);
#else
    nnfw::cker::PopulateSoftmaxLookupTable(_table, _input->data_scale(), _beta);
#endif
  }
}

References _input, _output, onert::backend::IPortableTensor::data_scale(), onert::backend::IPortableTensor::data_type(), and nnfw::cker::PopulateSoftmaxLookupTable().

run()

void onert::backend::cpu::ops::SoftMaxLayer::run ( )

overridevirtual

Implements onert::exec::IFunction.

Definition at line 129 of file SoftmaxLayer.cc.

{
  switch (_input->data_type())
  {
    case OperandType::FLOAT32:
      softmaxFloat32();
      break;
    case OperandType::QUANT_UINT8_ASYMM:
      softmaxQuant8<uint8_t>();
      break;
    case OperandType::QUANT_INT8_ASYMM:
      softmaxQuant8<int8_t>();
      break;
    default:
      throw std::runtime_error{"SoftMax: unsupported data type"};
  }
}

References _input, onert::backend::IPortableTensor::data_type(), and softmaxFloat32().

Referenced by onert::backend::train::ops::SoftMaxLayer::forward().

softmaxFloat32()

void onert::backend::cpu::ops::SoftMaxLayer::softmaxFloat32

(

)

Definition at line 57 of file SoftmaxLayer.cc.

{
  if (getNumberOfDimensions(_input) == 1)
  {
    uint32_t input_size = getNumberOfElements(_input);
    nnfw::cker::Softmax(getBuffer<float>(_input), input_size, 1, _beta, getBuffer<float>(_output));
  }
  else if (getNumberOfDimensions(_input) == 2)
  {
    uint32_t batch_size = getSizeOfDimension(_input, 0);
    if (batch_size == 0)
      throw std::runtime_error("batch_size should not be 0");
 
    uint32_t input_size = getNumberOfElements(_input) / batch_size;
    nnfw::cker::Softmax(getBuffer<float>(_input), input_size, batch_size, _beta,
                        getBuffer<float>(_output));
  }
  else if (getNumberOfDimensions(_input) == 4)
  {
    nnfw::cker::SoftmaxParams op_params;
    op_params.beta = _beta;
    nnfw::cker::Softmax(op_params, getShape(_input), getBuffer<float>(_input), getShape(_output),
                        getBuffer<float>(_output));
  }
  else
  {
    nnfw::cker::SoftmaxParams op_params;
    op_params.beta = _beta;
    nnfw::cker::reference::Softmax(op_params, getShape(_input), getBuffer<float>(_input),
                                   getShape(_output), getBuffer<float>(_output));
  }
}

References _input, _output, nnfw::cker::SoftmaxParams::beta, getNumberOfDimensions(), getNumberOfElements(), onert::backend::cpu::ops::getShape(), getSizeOfDimension(), nnfw::cker::Softmax(), and nnfw::cker::reference::Softmax().

Referenced by run().

softmaxQuant8()

template<typename T >

void onert::backend::cpu::ops::SoftMaxLayer::softmaxQuant8

(

)

Definition at line 90 of file SoftmaxLayer.cc.

{
  nnfw::cker::SoftmaxParams op_params;
  op_params.scale = _output->data_scale();
  op_params.zero_point = _output->data_zero_point();
  op_params.uint8_table1 = _uint8_table1;
  op_params.uint8_table2 = _uint8_table2;
  op_params.table = _table;
 
#ifdef TFLITE_SOFTMAX_USE_UINT16_LUT
  nnfw::cker::SoftmaxInt8LUT<T, T>(op_params, getShape(_input), getBuffer<T>(_input),
                                   getShape(_output), getBuffer<T>(_output));
#else
  nnfw::cker::Softmax<T, T>(op_params, getShape(_input), getBuffer<T>(_input), getShape(_output),
                            getBuffer<T>(_output));
#endif
}

References _input, _output, onert::backend::IPortableTensor::data_scale(), onert::backend::IPortableTensor::data_zero_point(), onert::backend::cpu::ops::getShape(), nnfw::cker::SoftmaxParams::scale, nnfw::cker::SoftmaxParams::table, nnfw::cker::SoftmaxParams::uint8_table1, nnfw::cker::SoftmaxParams::uint8_table2, and nnfw::cker::SoftmaxParams::zero_point.

Field Documentation

_input

const IPortableTensor* onert::backend::cpu::ops::SoftMaxLayer::_input

protected

Definition at line 42 of file SoftmaxLayer.h.

Referenced by onert::backend::train::ops::SoftMaxLayer::backward(), configure(), run(), softmaxFloat32(), and softmaxQuant8().

_output

IPortableTensor* onert::backend::cpu::ops::SoftMaxLayer::_output

protected

Definition at line 43 of file SoftmaxLayer.h.

Referenced by onert::backend::train::ops::SoftMaxLayer::backward(), configure(), softmaxFloat32(), and softmaxQuant8().

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

• runtime/onert/backend/cpu/ops/SoftmaxLayer.h
• runtime/onert/backend/cpu/ops/SoftmaxLayer.cc