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model_helper.h 2.7 kB

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  1. /**
  2. * Copyright 2019-2020 Huawei Technologies Co., Ltd
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. #ifndef INC_FRAMEWORK_COMMON_HELPER_MODEL_HELPER_H_
  17. #define INC_FRAMEWORK_COMMON_HELPER_MODEL_HELPER_H_
  18. #include <memory>
  19. #include <string>
  20. #include "common/fmk_types.h"
  21. #include "common/helper/om_file_helper.h"
  22. #include "common/types.h"
  23. #include "graph/model.h"
  24. #include "model/ge_model.h"
  25. namespace domi {
  26. class ModelHelper {
  27. public:
  28. ModelHelper() = default;
  29. ~ModelHelper();
  30. Status SaveToOmModel(const GeModelPtr& ge_model, const SaveParam& save_param, const std::string& output_file,
  31. ge::ModelBufferData& model);
  32. Status SaveOriginalGraphToOmModel(const ge::Graph& graph, const std::string& output_file);
  33. Status LoadModel(const ge::ModelData& model_data);
  34. Status GetModelBufferData(ge::ModelBufferData& model);
  35. ModelFileHeader* GetFileHeader() { return file_header_; }
  36. GeModelPtr GetGeModel();
  37. void SetSaveMode(bool val) { is_offline_ = val; }
  38. bool GetSaveMode(void) const { return is_offline_; }
  39. static Status TransModelToGeModel(const ModelPtr& model, GeModelPtr& ge_model);
  40. static Status TransGeModelToModel(const GeModelPtr& geModelPtr, ModelPtr& modelPtr);
  41. private:
  42. bool is_assign_model_ = false;
  43. bool is_offline_ = true;
  44. ModelFileHeader* file_header_ = nullptr;
  45. // Encrypted model need delete temp model and unencrypted model need not delete model
  46. uint8_t* model_addr_tmp_ = nullptr;
  47. uint32_t model_len_tmp_ = 0;
  48. GeModelPtr model_;
  49. ModelHelper(const ModelHelper&);
  50. ModelHelper& operator=(const ModelHelper&);
  51. Status GenerateGeModel(OmFileLoadHelper& om_load_helper);
  52. Status LoadModelData(OmFileLoadHelper& om_load_helper);
  53. void SetModelToGeModel(ge::Model& model);
  54. Status LoadWeights(OmFileLoadHelper& om_load_helper);
  55. Status LoadTask(OmFileLoadHelper& om_load_helper);
  56. Status LoadTBEKernelStore(OmFileLoadHelper& om_load_helper);
  57. Status ReleaseLocalModelData() noexcept;
  58. Status SaveModelPartition(std::shared_ptr<OmFileSaveHelper>& om_file_save_helper, ModelPartitionType type,
  59. const uint8_t* data, size_t size);
  60. };
  61. } // namespace domi
  62. #endif // INC_FRAMEWORK_COMMON_HELPER_MODEL_HELPER_H_

图引擎模块(GE)是MindSpore的一个子模块,其代码由C++实现,位于前端模块ME和底层硬件之间,起到承接作用。图引擎模块以ME下发的图作为输入,然后进行一系列的深度图优化操作,最后输出一张可以在底层硬件上高效运行的图。GE针对昇腾AI处理器的硬件结构特点,做了特定的优化工作,以此来充分发挥出昇腾AI处理器的强大算力。在进行模型训练/推理时,GE会被自动调用而用户并不感知。GE主要由GE API和GE Core两部分组成,详细的架构图如下所示