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context.h 4.6 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 CCE_RUNTIME_CONTEXT_H
  17. #define CCE_RUNTIME_CONTEXT_H
  18. #include "base.h"
  19. #if defined(__cplusplus)
  20. extern "C" {
  21. #endif
  22. /**
  23. * @ingroup rt_context
  24. * @brief runtime context handle.
  25. */
  26. typedef void *rtContext_t;
  27. typedef enum tagDryRunFlag {
  28. RT_DRYRUN_FLAG_FALSE = 0,
  29. RT_DRYRUN_FLAG_TRUE = 1,
  30. } rtDryRunFlag_t;
  31. typedef enum tagCtxMode {
  32. RT_CTX_NORMAL_MODE = 0,
  33. RT_CTX_GEN_MODE = 1,
  34. } rtCtxMode_t;
  35. typedef struct tagRtGroupInfo {
  36. int32_t groupId;
  37. uint32_t flag;
  38. uint32_t aicoreNum;
  39. uint32_t aicpuNum;
  40. uint32_t aivectorNum;
  41. uint32_t sdmaNum;
  42. uint32_t activeStreamNum;
  43. void *extrPtr;
  44. } rtGroupInfo_t;
  45. /**
  46. * @ingroup rt_context
  47. * @brief create context and associates it with the calling thread
  48. * @param [out] ctx created context
  49. * @param [in] flags context creation flag. set to 0.
  50. * @param [in] device device to create context on
  51. * @return RT_ERROR_NONE for ok
  52. */
  53. RTS_API rtError_t rtCtxCreate(rtContext_t *ctx, uint32_t flags, int32_t device);
  54. /**
  55. * @ingroup rt_context
  56. * @brief create context and associates it with the calling thread
  57. * @param [out] ctx created context
  58. * @param [in] flags context creation flag. set to 0.
  59. * @param [in] device device to create context on
  60. * @param [in] deviceMode the device mode
  61. * @return RT_ERROR_NONE for ok
  62. */
  63. RTS_API rtError_t rtCtxCreateV2(rtContext_t *ctx, uint32_t flags, int32_t device, rtDeviceMode deviceMode);
  64. /**
  65. * @ingroup rt_context
  66. * @brief create context and associates it with the calling thread
  67. * @param [out] ctx created context
  68. * @param [in] flags context creation flag. set to 0.
  69. * @param [in] device device to create context on
  70. * @return RT_ERROR_NONE for ok
  71. */
  72. RTS_API rtError_t rtCtxCreateEx(rtContext_t *ctx, uint32_t flags, int32_t device);
  73. /**
  74. * @ingroup rt_context
  75. * @brief destroy context instance
  76. * @param [in] ctx context to destroy
  77. * @return RT_ERROR_NONE for ok
  78. */
  79. RTS_API rtError_t rtCtxDestroy(rtContext_t ctx);
  80. /**
  81. * @ingroup rt_context
  82. * @brief destroy context instance
  83. * @param [in] ctx context to destroy
  84. * @return RT_ERROR_NONE for ok
  85. */
  86. RTS_API rtError_t rtCtxDestroyEx(rtContext_t ctx);
  87. /**
  88. * @ingroup rt_context
  89. * @brief binds context to the calling CPU thread.
  90. * @param [in] ctx context to bind. if NULL, unbind current context.
  91. * @return RT_ERROR_NONE for ok
  92. */
  93. RTS_API rtError_t rtCtxSetCurrent(rtContext_t ctx);
  94. /**
  95. * @ingroup rt_context
  96. * @brief block for a context's tasks to complete
  97. * @return RT_ERROR_NONE for ok
  98. */
  99. RTS_API rtError_t rtCtxSynchronize(void);
  100. /**
  101. * @ingroup rt_context
  102. * @brief returns the context bound to the calling CPU thread.
  103. * @param [out] ctx returned context
  104. * @return RT_ERROR_NONE for ok
  105. */
  106. RTS_API rtError_t rtCtxGetCurrent(rtContext_t *ctx);
  107. /**
  108. * @ingroup rt_context
  109. * @brief returns the primary context of device.
  110. * @param [out] ctx returned context
  111. * @return RT_ERROR_NONE for ok
  112. */
  113. RTS_API rtError_t rtGetPriCtxByDeviceId(int32_t device, rtContext_t *ctx);
  114. /**
  115. * @ingroup rt_context
  116. * @brief returns the device ID for the current context
  117. * @param [out] device returned device id
  118. * @return RT_ERROR_NONE for ok
  119. */
  120. RTS_API rtError_t rtCtxGetDevice(int32_t *device);
  121. /**
  122. * @ingroup
  123. * @brief set group id
  124. * @param [in] groupid
  125. * @return RT_ERROR_NONE for ok, errno for failed
  126. */
  127. RTS_API rtError_t rtSetGroup(int32_t groupId);
  128. /**
  129. * @ingroup
  130. * @brief get group info
  131. * @param [in] groupid count
  132. * @return RT_ERROR_NONE for ok, errno for failed
  133. */
  134. RTS_API rtError_t rtGetGroupInfo(int32_t groupId, rtGroupInfo_t *groupInfo, uint32_t count);
  135. /**
  136. * @ingroup
  137. * @brief get group count
  138. * @param [in] groupid count
  139. * @return RT_ERROR_NONE for ok, errno for failed
  140. */
  141. RTS_API rtError_t rtGetGroupCount(uint32_t *count);
  142. /**
  143. * @ingroup rt_context
  144. * @brief set context INF mode
  145. * @param [in] mode
  146. * @return RT_ERROR_NONE for ok
  147. */
  148. RTS_API rtError_t rtSetCtxINFMode(bool mode);
  149. #if defined(__cplusplus)
  150. }
  151. #endif
  152. #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