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base.h 2.5 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. /**
  17. * @file base.h
  18. * @brief HCOM data type definition
  19. *
  20. */
  21. #ifndef HCCL_BASE_H_
  22. #define HCCL_BASE_H_
  23. #ifdef __cplusplus
  24. extern "C" {
  25. #endif // __cplusplus
  26. typedef signed char s8;
  27. typedef signed short s16;
  28. typedef signed int s32;
  29. typedef signed long long s64;
  30. typedef unsigned char u8;
  31. typedef unsigned short u16;
  32. typedef unsigned int u32;
  33. typedef unsigned long long u64;
  34. /**
  35. * @brief Horovod Reduction opperation
  36. */
  37. typedef enum {
  38. HOROVOD_REDUCE_AVERAGE = 0, /**< average */
  39. HOROVOD_REDUCE_SUM = 1, /**< sum */
  40. HOROVOD_REDUCE_ADASUM = 2, /**< adasum */
  41. HOROVOD_REDUCE_MIN = 3, /**< min */
  42. HOROVOD_REDUCE_MAX = 4, /**< max */
  43. HOROVOD_REDUCE_PROD = 5, /**< proo */
  44. HOROVOD_REDUCE_RESERVED /**< reserved */
  45. } HorovodReduceOp;
  46. const u32 HCCL_MAX_SEGMENT_NUM = 8; // The max number of gradient segments.
  47. /**
  48. * @brief the feature of the model
  49. */
  50. struct model_feature {
  51. const char *model_name; /**< The model name */
  52. u32 gradient_num; /**< The number of gradients */
  53. float *gradient_size; /**< The size of each gradient */
  54. float *gradient_time; /**< The BP compution time of each gradient */
  55. };
  56. /**
  57. * @brief Memory Register Address Struct for Remote Access
  58. */
  59. struct MemRegisterAddr {
  60. u64 addr;
  61. u64 length;
  62. };
  63. /*
  64. * @brief The max number of memory register address for remote access.
  65. */
  66. const u32 HCCL_MAX_MEM_REGISTER_NUM = 32;
  67. enum GradSplitForceMode {
  68. FORCE_NONE, /**< no force */
  69. FORCE_SIZE, /**< force split gradient by size */
  70. FORCE_RESERVED /**< reserved */
  71. };
  72. enum OriginalGraphShapeType {
  73. KNOWN_SHAPE,
  74. UNKNOWN_SHAPE,
  75. SHAPE_RESERVED /**< reserved */
  76. };
  77. /**
  78. * @brief stream handle.
  79. */
  80. typedef void *rtStream_t;
  81. /**
  82. * @brief model handle.
  83. */
  84. typedef void *rtModel_t;
  85. #ifdef __cplusplus
  86. }
  87. #endif // __cplusplus
  88. #endif // HCCL_BASE_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