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ge_root_model.h 2.6 kB

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  1. /**
  2. * Copyright 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. #include <map>
  17. #include "graph/compute_graph.h"
  18. #include "common/model/ge_model.h"
  19. #ifndef GE_MODEL_GE_ROOT_MODEL_H_
  20. #define GE_MODEL_GE_ROOT_MODEL_H_
  21. namespace ge {
  22. class GeRootModel {
  23. public:
  24. GeRootModel() = default;
  25. explicit GeRootModel(ComputeGraphPtr &root_graph) : root_graph_(root_graph), model_id_(INVALID_MODEL_ID) {};
  26. ~GeRootModel() = default;
  27. void SetSubgraphInstanceNameToModel(string instance_name, GeModelPtr ge_model);
  28. const std::map<std::string, GeModelPtr> &GetSubgraphInstanceNameToModel() const {
  29. return subgraph_instance_name_to_model_;
  30. };
  31. const ComputeGraphPtr &GetRootGraph() const { return root_graph_; }
  32. void SetModelId(uint32_t model_id) {
  33. model_id_ = model_id;
  34. // cached for removement
  35. model_ids_.emplace_back(model_id);
  36. }
  37. uint32_t GetModelId() const { return model_id_; }
  38. void SetIsSpecificStream(bool is_specific_stream) { is_specific_stream_ = is_specific_stream; }
  39. bool IsSpecificStream() const { return is_specific_stream_; }
  40. void SetModelName(const std::string &model_name) { model_name_ = model_name; }
  41. const std::string &GetModelName() const { return model_name_; }
  42. std::vector<uint32_t> GetAllModelId() const { return model_ids_; }
  43. void ClearAllModelId() { model_ids_.clear(); }
  44. Status CheckIsUnknownShape(bool &is_dynamic_shape);
  45. void SetRootGraph(ComputeGraphPtr graph) { root_graph_ = graph; }
  46. void SetTrainFlag(bool flag) { train_flag_ = flag; }
  47. bool GetTrainFlag() const { return train_flag_; }
  48. private:
  49. ComputeGraphPtr root_graph_ = nullptr;
  50. std::map<std::string, GeModelPtr> subgraph_instance_name_to_model_;
  51. uint32_t model_id_ = 0;
  52. // In multithread online secenario, same graph can owns different davinci_model for for concurrency
  53. std::vector<uint32_t> model_ids_;
  54. bool train_flag_ = false;
  55. std::string model_name_;
  56. bool is_specific_stream_ = false;
  57. };
  58. } // namespace ge
  59. using GeRootModelPtr = std::shared_ptr<ge::GeRootModel>;
  60. #endif // GE_MODEL_GE_ROOT_MODEL_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