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[onert] Introduce CheckpointLoader to load checkpoint file
This commit introduces CheckpointLoader class. It loads the checkpoint file data and updates the tensor data and training information. ONE-DCO-1.0-Signed-off-by: Jiyoung Yun <[email protected]>
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53 changes: 53 additions & 0 deletions
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runtime/onert/core/include/loader/train/CheckpointLoader.h
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/* | ||
* Copyright (c) 2024 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. | ||
*/ | ||
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#ifndef __ONERT_LOADER_TRAIN_CHECKPOINT_LOADER_H__ | ||
#define __ONERT_LOADER_TRAIN_CHECKPOINT_LOADER_H__ | ||
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#include <string> | ||
#include <memory> | ||
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namespace onert | ||
{ | ||
namespace exec | ||
{ | ||
class Execution; | ||
} // namespace exec | ||
namespace ir | ||
{ | ||
namespace train | ||
{ | ||
class TrainingInfo; | ||
} // namespace train | ||
} // namespace ir | ||
} // namespace onert | ||
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namespace onert | ||
{ | ||
namespace loader | ||
{ | ||
namespace train | ||
{ | ||
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void loadCheckpoint(const std::string &filename, | ||
const std::unique_ptr<ir::train::TrainingInfo> &train_info, | ||
const std::unique_ptr<exec::Execution> &exec); | ||
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} // namespace train | ||
} // namespace loader | ||
} // namespace onert | ||
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#endif // __ONERT_LOADER_TRAIN_CHECKPOINT_LOADER_H__ |
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runtime/onert/core/src/loader/train/CheckpointLoader.cc
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/* | ||
* Copyright (c) 2024 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. | ||
*/ | ||
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#include "loader/train/CheckpointLoader.h" | ||
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#include "exec/Execution.h" | ||
#include "ir/train/Checkpoint.h" | ||
#include "ir/train/TrainingInfo.h" | ||
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#include <fstream> | ||
#include <filesystem> | ||
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namespace | ||
{ | ||
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using namespace onert; | ||
using namespace ir; | ||
using namespace train; | ||
using namespace checkpoint; | ||
using namespace exec; | ||
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class CheckpointLoader | ||
{ | ||
public: | ||
CheckpointLoader(const std::string &filename) | ||
{ | ||
if (filename.empty() || !std::filesystem::exists(filename)) | ||
throw std::runtime_error{"Invalid checkpoint file"}; | ||
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_file.open(filename.c_str(), std::ios::binary | std::ios::in); | ||
if (!_file.good()) | ||
throw std::runtime_error{"Failed to open checkpoint file"}; | ||
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_file.seekg(0, std::ios::end); | ||
const auto filesize = _file.tellg(); | ||
_file.seekg(0, std::ios::beg); | ||
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if (filesize < static_cast<long>(sizeof(_header))) | ||
throw std::runtime_error{"Invalid checkpoint file data"}; | ||
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memset(reinterpret_cast<char *>(&_header), 0, sizeof(_header)); | ||
_file.read(reinterpret_cast<char *>(&_header), sizeof(_header)); | ||
if (_file.fail()) | ||
throw std::runtime_error{"Failed to load header data"}; | ||
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if (_header.magic != checkpoint::MAGIC_NUMBER) | ||
throw std::runtime_error{"Invalid MAGIC NUMBER"}; | ||
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if (_header.schema != checkpoint::SCHEMA_VERSION) | ||
throw std::runtime_error{"Invalid SCHEMA VERSION"}; | ||
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if (filesize - static_cast<long>(_header.other_offset) != sizeof(_footer)) | ||
throw std::runtime_error{"Invalid checkpoint file footer data"}; | ||
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memset(reinterpret_cast<char *>(&_footer), 0, sizeof(_footer)); | ||
_file.seekg(_header.other_offset, std::ios::beg); | ||
_file.read(reinterpret_cast<char *>(&_footer), sizeof(_footer)); | ||
} | ||
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~CheckpointLoader() | ||
{ | ||
if (_file.is_open()) | ||
_file.close(); | ||
} | ||
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private: | ||
std::ifstream _file; | ||
checkpoint::Header _header; | ||
checkpoint::Footer _footer; | ||
}; | ||
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} // namespace | ||
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namespace onert | ||
{ | ||
namespace loader | ||
{ | ||
namespace train | ||
{ | ||
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void loadCheckpoint(const std::string &filename, | ||
const std::unique_ptr<ir::train::TrainingInfo> &train_info, | ||
const std::unique_ptr<onert::exec::Execution> &exec) | ||
{ | ||
CheckpointLoader loader(filename); | ||
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// TODO Load tensor data | ||
UNUSED_RELEASE(exec); | ||
// TODO Update step in train_info | ||
UNUSED_RELEASE(train_info); | ||
} | ||
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} // namespace train | ||
} // namespace loader | ||
} // namespace onert |