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pass_manager.h 2.0 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 GE_INC_PASS_MANAGER_H_
  17. #define GE_INC_PASS_MANAGER_H_
  18. #include <vector>
  19. #include "inc/graph_pass.h"
  20. using std::vector;
  21. namespace ge {
  22. ///
  23. /// @ingroup domi_omg
  24. /// @brief pass manager
  25. /// @author
  26. ///
  27. class PassManager {
  28. public:
  29. ///
  30. /// get graph passes
  31. /// @author
  32. ///
  33. const vector<std::pair<std::string, GraphPass *>> &GraphPasses() const;
  34. ///
  35. /// Add graph pass
  36. /// @param [in] pass Pass to be added, it will be destroyed when pass manager destroys.
  37. /// @author
  38. ///
  39. Status AddPass(const string &pass_name, GraphPass *pass);
  40. ///
  41. /// Optimize graph with added pass
  42. /// @param [inout] graph graph to be optimized
  43. /// @return SUCCESS optimize successfully
  44. /// @return NOT_CHANGED not optimized
  45. /// @return others optimize failed
  46. /// @author
  47. ///
  48. Status Run(const ge::ComputeGraphPtr &graph);
  49. ///
  50. /// Optimize graph with specified pass
  51. /// @param [inout] graph graph to be optimized
  52. /// @param [in] passes passes to be used
  53. /// @return SUCCESS optimize successfully
  54. /// @return NOT_CHANGED not optimized
  55. /// @return others optimized failed
  56. /// @author
  57. ///
  58. static Status Run(const ge::ComputeGraphPtr &graph, vector<std::pair<std::string, GraphPass *>> &passes);
  59. ~PassManager();
  60. private:
  61. vector<std::pair<std::string, GraphPass *>> names_to_graph_passes_;
  62. };
  63. } // namespace ge
  64. #endif // GE_INC_PASS_MANAGER_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