composite_image_transformation.hpp

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// Copyright (c) 2014-2023, Lawrence Livermore National Security, LLC.
// Produced at the Lawrence Livermore National Laboratory.
// Written by the LBANN Research Team (B. Van Essen, et al.) listed in
// the CONTRIBUTORS file. <lbann-dev@llnl.gov>
//
// LLNL-CODE-697807.
// All rights reserved.
//
// This file is part of LBANN: Livermore Big Artificial Neural Network
// Toolkit. For details, see http://software.llnl.gov/LBANN or
// https://github.com/LLNL/LBANN.
//
// Licensed under the Apache License, Version 2.0 (the "Licensee"); you
// may not use this file except in compliance with the License.  You may
// obtain a copy of the License at:
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied. See the License for the specific language governing
// permissions and limitations under the license.

#ifndef LBANN_LAYERS_IMAGE_COMPOSITE_IMAGE_TRANSFORMATION_HPP_INCLUDED
#define LBANN_LAYERS_IMAGE_COMPOSITE_IMAGE_TRANSFORMATION_HPP_INCLUDED

#include "lbann/layers/data_type_layer.hpp"
#include "lbann/layers/layer.hpp"

namespace lbann {

template <typename TensorDataType, data_layout Layout, El::Device Device>
class composite_image_transformation_layer
  : public data_type_layer<TensorDataType>
{
  static_assert(
    Layout == data_layout::DATA_PARALLEL,
    "composite_image_transformation_layer only supports DATA_PARALLEL");
  static_assert(Device == El::Device::CPU,
                "composite_image_transformation_layer only supports CPU");

public:

  using AbsDistMatrixType = El::AbstractDistMatrix<TensorDataType>;


public:
  composite_image_transformation_layer(lbann_comm* comm)
    : data_type_layer<TensorDataType>(comm)
  {
    this->m_expected_num_parent_layers = 4;
  }

  composite_image_transformation_layer* copy() const override
  {
    return new composite_image_transformation_layer(*this);
  }


  template <typename ArchiveT>
  void serialize(ArchiveT& ar);


  std::string get_type() const override
  {
    return "composite image transformation";
  }
  data_layout get_data_layout() const override { return Layout; }
  El::Device get_device_allocation() const override { return Device; }
  bool can_run_inplace() const override { return false; }
  int get_backprop_requirements() const override { return ERROR_SIGNALS; }

  void fp_compute() override;

protected:
  void write_specific_proto(lbann_data::Layer& proto) const final;

  friend class cereal::access;
  composite_image_transformation_layer()
    : composite_image_transformation_layer(nullptr)
  {}

  void setup_dims() override;
};

#ifndef LBANN_COMPOSITE_IMAGE_TRANSFORMATION_LAYER_INSTANTIATE
#define PROTO(T)                                                               \
  extern template class composite_image_transformation_layer<                  \
    T,                                                                         \
    data_layout::DATA_PARALLEL,                                                \
    El::Device::CPU>

#include "lbann/macros/instantiate.hpp"
#undef PROTO
#endif // LBANN_COMPOSITE_IMAGE_TRANSFORMATION_LAYER_INSTANTIATE

} // namespace lbann

#endif // LBANN_LAYERS_IMAGE_COMPOSITE_IMAGE_TRANSFORMATION_HPP_INCLUDED