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context.h 4.3 kB

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  1. /**
  2. * Copyright 2020 Huawei Technologies Co., Ltd
  3. * Licensed under the Apache License, Version 2.0 (the "License");
  4. * you may not use this file except in compliance with the License.
  5. * You may obtain a copy of the License at
  6. * http://www.apache.org/licenses/LICENSE-2.0
  7. * Unless required by applicable law or agreed to in writing, software
  8. * distributed under the License is distributed on an "AS IS" BASIS,
  9. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  10. * See the License for the specific language governing permissions and
  11. * limitations under the License.
  12. */
  13. #ifndef __CCE_RUNTIME_CONTEXT_H__
  14. #define __CCE_RUNTIME_CONTEXT_H__
  15. #include "base.h"
  16. #if defined(__cplusplus) && !defined(COMPILE_OMG_PACKAGE)
  17. extern "C" {
  18. #endif
  19. /**
  20. * @ingroup rt_context
  21. * @brief runtime context handle.
  22. */
  23. typedef void *rtContext_t;
  24. typedef enum tagDryRunFlag {
  25. RT_DRYRUN_FLAG_FALSE = 0,
  26. RT_DRYRUN_FLAG_TRUE = 1,
  27. } rtDryRunFlag_t;
  28. typedef enum tagCtxMode {
  29. RT_CTX_NORMAL_MODE = 0,
  30. RT_CTX_GEN_MODE = 1,
  31. } rtCtxMode_t;
  32. typedef struct tagRtGroupInfo {
  33. int32_t groupId;
  34. uint32_t flag;
  35. uint32_t aicoreNum;
  36. uint32_t aicpuNum;
  37. uint32_t aivectorNum;
  38. uint32_t sdmaNum;
  39. uint32_t activeStreamNum;
  40. void *extrPtr;
  41. } rtGroupInfo_t;
  42. /**
  43. * @ingroup rt_context
  44. * @brief create context and associates it with the calling thread
  45. * @param [out] ctx created context
  46. * @param [in] flags context creation flag. set to 0.
  47. * @param [in] device device to create context on
  48. * @return RT_ERROR_NONE for ok
  49. */
  50. RTS_API rtError_t rtCtxCreate(rtContext_t *ctx, uint32_t flags, int32_t device);
  51. /**
  52. * @ingroup rt_context
  53. * @brief create context and associates it with the calling thread
  54. * @param [out] ctx created context
  55. * @param [in] flags context creation flag. set to 0.
  56. * @param [in] device device to create context on
  57. * @return RT_ERROR_NONE for ok
  58. */
  59. RTS_API rtError_t rtCtxCreateEx(rtContext_t *ctx, uint32_t flags, int32_t device);
  60. /**
  61. * @ingroup rt_context
  62. * @brief destroy context instance
  63. * @param [in] ctx context to destroy
  64. * @return RT_ERROR_NONE for ok
  65. */
  66. RTS_API rtError_t rtCtxDestroy(rtContext_t ctx);
  67. /**
  68. * @ingroup rt_context
  69. * @brief destroy context instance
  70. * @param [in] ctx context to destroy
  71. * @return RT_ERROR_NONE for ok
  72. */
  73. RTS_API rtError_t rtCtxDestroyEx(rtContext_t ctx);
  74. /**
  75. * @ingroup rt_context
  76. * @brief binds context to the calling CPU thread.
  77. * @param [in] ctx context to bind. if NULL, unbind current context.
  78. * @return RT_ERROR_NONE for ok
  79. */
  80. RTS_API rtError_t rtCtxSetCurrent(rtContext_t ctx);
  81. /**
  82. * @ingroup rt_context
  83. * @brief block for a context's tasks to complete
  84. * @return RT_ERROR_NONE for ok
  85. */
  86. RTS_API rtError_t rtCtxSynchronize(void);
  87. /**
  88. * @ingroup rt_context
  89. * @brief returns the context bound to the calling CPU thread.
  90. * @param [out] ctx returned context
  91. * @return RT_ERROR_NONE for ok
  92. */
  93. RTS_API rtError_t rtCtxGetCurrent(rtContext_t *ctx);
  94. /**
  95. * @ingroup rt_context
  96. * @brief returns the primary context of device.
  97. * @param [out] ctx returned context
  98. * @return RT_ERROR_NONE for ok
  99. */
  100. RTS_API rtError_t rtGetPriCtxByDeviceId(int32_t device, rtContext_t *ctx);
  101. /**
  102. * @ingroup rt_context
  103. * @brief returns the device ID for the current context
  104. * @param [out] device returned device id
  105. * @return RT_ERROR_NONE for ok
  106. */
  107. RTS_API rtError_t rtCtxGetDevice(int32_t *device);
  108. /**
  109. * @ingroup
  110. * @brief set group id
  111. * @param [in] groupid
  112. * @return RT_ERROR_NONE for ok, errno for failed
  113. */
  114. RTS_API rtError_t rtSetGroup(int32_t groupId);
  115. /**
  116. * @ingroup
  117. * @brief get group info
  118. * @param [in] groupid count
  119. * @return RT_ERROR_NONE for ok, errno for failed
  120. */
  121. RTS_API rtError_t rtGetGroupInfo(int32_t groupId, rtGroupInfo_t *groupInfo, uint32_t count);
  122. /**
  123. * @ingroup
  124. * @brief get group count
  125. * @param [in] groupid count
  126. * @return RT_ERROR_NONE for ok, errno for failed
  127. */
  128. RTS_API rtError_t rtGetGroupCount(uint32_t *count);
  129. /**
  130. * @ingroup rt_context
  131. * @brief set context INF mode
  132. * @param [in] mode
  133. * @return RT_ERROR_NONE for ok
  134. */
  135. RTS_API rtError_t rtSetCtxINFMode(bool mode);
  136. #if defined(__cplusplus) && !defined(COMPILE_OMG_PACKAGE)
  137. }
  138. #endif
  139. #endif // __CCE_RUNTIME_CONTEXT_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