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formats_trans_utils.h 1.9 kB

5 years ago
5 years ago
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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_COMMON_FORMATS_UTILS_FORMATS_TRANS_UTILS_H_
  17. #define GE_COMMON_FORMATS_UTILS_FORMATS_TRANS_UTILS_H_
  18. #include <cstdint>
  19. #include <sstream>
  20. #include <string>
  21. #include <vector>
  22. #include "external/graph/types.h"
  23. #include "graph/ge_tensor.h"
  24. namespace ge {
  25. namespace formats {
  26. int64_t GetCubeSizeByDataType(DataType data_type);
  27. /**
  28. * Convert a vector to a string using ','
  29. * @tparam T
  30. * @param vec
  31. * @return
  32. */
  33. template <typename T>
  34. std::string JoinToString(const std::vector<T> &vec) {
  35. std::stringstream ss;
  36. bool first = true;
  37. for (auto &ele : vec) {
  38. if (first) {
  39. first = false;
  40. } else {
  41. ss << ",";
  42. }
  43. ss << ele;
  44. }
  45. return ss.str();
  46. }
  47. std::string ShapeToString(const GeShape &shape);
  48. std::string ShapeToString(const std::vector<int64_t> &shape);
  49. int64_t GetItemNumByShape(const std::vector<int64_t> &shape);
  50. bool CheckShapeValid(const std::vector<int64_t> &shape, const int64_t expect_dims);
  51. bool IsShapeValid(const std::vector<int64_t> &shape);
  52. bool IsShapeEqual(const GeShape &src, const GeShape &dst);
  53. template <typename T>
  54. T Ceil(T n1, T n2) {
  55. if (n1 == 0) {
  56. return 0;
  57. }
  58. return (n2 != 0) ? (n1 - 1) / n2 + 1 : 0;
  59. }
  60. } // namespace formats
  61. } // namespace ge
  62. #endif // GE_COMMON_FORMATS_UTILS_FORMATS_TRANS_UTILS_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