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/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* 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.
*/
#include "gencore/HDF5Exporter.h"
#include <angkor/TensorShape.h>
#include <nncc/core/ADT/tensor/IndexEnumerator.h>
#include <nncc/core/ADT/tensor/LexicalLayout.h>
#include <nncc/core/ADT/tensor/Reader.h>
#include <H5Cpp.h>
namespace
{
template <typename DT> H5::PredType get_h5_datatype();
template <> H5::PredType get_h5_datatype<float>() { return H5::PredType::NATIVE_FLOAT; }
template <typename DT> H5::PredType get_h5_store_format();
template <> H5::PredType get_h5_store_format<float>() { return H5::PredType::IEEE_F32BE; }
} // namespace
namespace gencore
{
template <typename DT>
void H5Exporter::write(uint32_t nth, const std::string &name, const angkor::TensorShape &shape,
const nncc::core::ADT::tensor::Reader<DT> &buf_reader)
{
// Record tensor values
{
const auto rank = shape.rank();
hsize_t dims[rank];
for (uint32_t axis = 0; axis < rank; ++axis)
{
dims[axis] = shape.dim(axis);
}
H5::DataSpace dataspace(rank, dims);
auto dataset =
_value_grp.createDataSet(value_filename(nth), get_h5_store_format<DT>(), dataspace);
DT *h5_data = new DT[nncc::core::ADT::tensor::num_elements(shape)];
{
using nncc::core::ADT::tensor::IndexEnumerator;
using nncc::core::ADT::tensor::LexicalLayout;
LexicalLayout layout{};
for (IndexEnumerator e{shape}; e.valid(); e.advance())
{
auto i = e.current();
h5_data[layout.offset(shape, i)] = buf_reader.at(i);
}
}
dataset.write(h5_data, get_h5_datatype<DT>());
delete[] h5_data;
}
// Record name
{
H5::DataSpace name_dataspace(H5S_SCALAR);
H5::StrType name_datatype(H5::PredType::C_S1, name.size());
auto name_attr = _name_grp.createAttribute(value_filename(nth), name_datatype, name_dataspace);
name_attr.write(name_datatype, name);
}
}
// template instantiation
template void H5Exporter::write<float>(uint32_t, const std::string &, const angkor::TensorShape &,
const nncc::core::ADT::tensor::Reader<float> &);
} // namespace gencore
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