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dnnengine.h 1.6 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_ENGINE_DNNENGINE_H_
  17. #define INC_FRAMEWORK_ENGINE_DNNENGINE_H_
  18. #include <map>
  19. #include <string>
  20. #include <vector>
  21. #include "common/ge_inner_error_codes.h"
  22. #include "common/ge_types.h"
  23. #include "graph/types.h"
  24. namespace ge {
  25. enum PriorityEnum {
  26. COST_0 = 0,
  27. COST_1,
  28. COST_2,
  29. COST_9 = 9,
  30. COST_10 = 10,
  31. };
  32. struct DNNEngineAttribute {
  33. std::string engine_name;
  34. std::vector<std::string> mem_type;
  35. uint32_t compute_cost;
  36. enum RuntimeType runtime_type; // HOST, DEVICE
  37. // If engine input format must be specific, set this attribute, else set FORMAT_RESERVED
  38. Format engine_input_format;
  39. Format engine_output_format;
  40. };
  41. class DNNEngine {
  42. public:
  43. virtual ~DNNEngine() = default;
  44. virtual Status Initialize(const std::map<std::string, std::string> &options) = 0;
  45. virtual Status Finalize() = 0;
  46. virtual void GetAttributes(DNNEngineAttribute &attr) const = 0;
  47. };
  48. } // namespace ge
  49. #endif // INC_FRAMEWORK_ENGINE_DNNENGINE_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