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stream.h 7.1 kB

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  1. /*
  2. * Copyright (c) Huawei Technologies Co., Ltd. 2020-2021. All rights reserved.
  3. * Description: stream.h
  4. * Create: 2020-01-01
  5. */
  6. #ifndef CCE_RUNTIME_STREAM_H
  7. #define CCE_RUNTIME_STREAM_H
  8. #include "base.h"
  9. #include "event.h"
  10. #if defined(__cplusplus)
  11. extern "C" {
  12. #endif
  13. /**
  14. * @ingroup stream_flags
  15. * @brief stream op bit flags
  16. */
  17. #define RT_STREAM_DEFAULT (0x00U)
  18. #define RT_STREAM_PERSISTENT (0x01U)
  19. #define RT_STREAM_FORCE_COPY (0x02U)
  20. #define RT_STREAM_HUGE (0x04U)
  21. #define RT_STREAM_AICPU (0x08U)
  22. #define RT_STREAM_FORBIDDEN_DEFAULT (0x10U)
  23. #define RT_STREAM_HEAD (0x20U)
  24. #define RT_STREAM_PRIMARY_DEFAULT (0x40U)
  25. #define RT_STREAM_PRIMARY_FIRST_DEFAULT (0x80U)
  26. /**
  27. * @ingroup stream_type
  28. * @brief stream type
  29. */
  30. #define RT_NORMAL_STREAM (0x00U)
  31. #define RT_HUGE_STREAM (0x01U)
  32. /**
  33. * priority level default value when create a stream
  34. */
  35. #define RT_STREAM_PRIORITY_DEFAULT (0U)
  36. /**
  37. * @ingroup dvrt_stream
  38. * @brief create stream instance
  39. * @param [in|out] stm created stream
  40. * @param [in] priority stream priority
  41. * @return RT_ERROR_NONE for ok
  42. * @return RT_ERROR_INVALID_VALUE for error input
  43. */
  44. RTS_API rtError_t rtStreamCreate(rtStream_t *stm, int32_t priority);
  45. /**
  46. * @ingroup dvrt_stream
  47. * @brief create stream instance
  48. * @param [in|out] stm created stream
  49. * @param [in] priority stream priority
  50. * @param [in] flags stream op flags
  51. * @return RT_ERROR_NONE for ok
  52. * @return RT_ERROR_INVALID_VALUE for error input
  53. */
  54. RTS_API rtError_t rtStreamCreateWithFlags(rtStream_t *stm, int32_t priority, uint32_t flags);
  55. /**
  56. * @ingroup dvrt_stream
  57. * @brief destroy stream instance.
  58. * @param [in] stm the stream to destroy
  59. * @return RT_ERROR_NONE for ok
  60. * @return RT_ERROR_INVALID_VALUE for error input
  61. */
  62. RTS_API rtError_t rtStreamDestroy(rtStream_t stm);
  63. /**
  64. * @ingroup dvrt_stream
  65. * @brief wait an recorded event for stream
  66. * @param [in] stm the wait stream
  67. * @param [in] event the event to wait
  68. * @return RT_ERROR_NONE for ok
  69. * @return RT_ERROR_INVALID_VALUE for error input
  70. */
  71. RTS_API rtError_t rtStreamWaitEvent(rtStream_t stm, rtEvent_t evt);
  72. /**
  73. * @ingroup dvrt_stream
  74. * @brief wait an recorded event for stream, used for 1951 pg1
  75. * @param [in] stm the wait stream
  76. * @param [in] event the event to wait
  77. * @param [in] timeout timeout value for 1951 pg1
  78. * @return RT_ERROR_NONE for ok
  79. * @return RT_ERROR_INVALID_VALUE for error input
  80. */
  81. RTS_API rtError_t rtStreamWaitEventWithTimeout(rtStream_t stm, rtEvent_t evt, uint32_t timeout);
  82. /**
  83. * @ingroup dvrt_stream
  84. * @brief wait stream to be complete
  85. * @param [in] stm stream to wait
  86. * @return RT_ERROR_NONE for ok
  87. * @return RT_ERROR_INVALID_VALUE for error input
  88. */
  89. RTS_API rtError_t rtStreamSynchronize(rtStream_t stm);
  90. /**
  91. * @ingroup dvrt_stream
  92. * @brief queries an asynchronous stream for completion status
  93. * @param [in] stm stream to query
  94. * @return RT_ERROR_NONE for complete
  95. * @return RT_ERROR_STREAM_NOT_COMPLETE for not complete
  96. */
  97. RTS_API rtError_t rtStreamQuery(rtStream_t stm);
  98. /**
  99. * @ingroup dvrt_stream
  100. * @brief get stream id from a stream handle
  101. * @param [in] stm stream hadle
  102. * @param [in] streamId stream id
  103. * @return RT_ERROR_NONE for complete
  104. * @return RT_ERROR_INVALID_VALUE for error input
  105. */
  106. RTS_API rtError_t rtGetStreamId(rtStream_t stm, int32_t *streamId);
  107. /**
  108. * @ingroup dvrt_stream
  109. * @brief inquire max stream count and max task count per stream
  110. * @param [in] streamType Stream Type
  111. * @param [in] MaxStrCount Max stream count
  112. * @param [in] MaxTaskCount max task count per stream
  113. * @return RT_ERROR_NONE for complete
  114. * @return RT_ERROR_INVALID_VALUE for error input
  115. */
  116. RTS_API rtError_t rtGetMaxStreamAndTask(uint32_t streamType, uint32_t *maxStrCount, uint32_t *maxTaskCount);
  117. /**
  118. * @ingroup dvrt_stream
  119. * @brief Name a stream
  120. * @param [in] stm stream to be named
  121. * @param [in] name identification name
  122. * @return RT_ERROR_NONE for complete
  123. * @return RT_ERROR_INVALID_VALUE for error input
  124. */
  125. RTS_API rtError_t rtNameStream(rtStream_t stm, const char_t *name);
  126. /**
  127. * @ingroup dvrt_stream
  128. * @brief switch to the corresponding stream according to the contents of the ptr
  129. * @param [in] ptr Determine the address where the value of the true and false branches is located
  130. * @param [in] condition switch condition
  131. * @param [in] val switch value
  132. * @param [in] trueStream Stream that needs to be activated when the value is non-zero
  133. * @param [in] stm input stream to init task
  134. * @return RT_ERROR_NONE for complete
  135. * @return RT_ERROR_INVALID_VALUE for error input
  136. */
  137. RTS_API rtError_t rtStreamSwitch(void *ptr, rtCondition_t condition, int64_t val, rtStream_t trueStream,
  138. rtStream_t stm);
  139. /**
  140. * @brief execute extensible stream switch task
  141. * @param [in] ptr pointer of value
  142. * @param [in] condition judge condition
  143. * @param [in] value_ptr pointer of target value
  144. * @param [in] true_stream stream to be activated when value is not zero
  145. * @param [in] stm stream id
  146. * @param [in] dataType data type of target value
  147. * @return RT_ERROR_NONE for complete
  148. */
  149. RTS_API rtError_t rtStreamSwitchEx(void *ptr, rtCondition_t condition, void *valuePtr, rtStream_t trueStream,
  150. rtStream_t stm, rtSwitchDataType_t dataType);
  151. /**
  152. * @ingroup dvrt_stream
  153. * @brief Active a stream
  154. * @param [in] activeStream stream to be activated
  155. * @param [in] stm input stream to init task
  156. * @return RT_ERROR_NONE for complete
  157. * @return RT_ERROR_INVALID_VALUE for error input
  158. */
  159. RTS_API rtError_t rtStreamActive(rtStream_t activeStream, rtStream_t stm);
  160. /**
  161. * @brief execute extensible stream case switch task
  162. * @param [in] ptr pointer of value
  163. * @param [in] size pointer num of value
  164. * @param [in] valuePtr pointer of target value, length = size * elementSize
  165. * @param [in] trueStreamPtr streams to be activated
  166. * @param [in] elementSize size of to be activated true streams
  167. * @param [in] stm input stream to init task
  168. * @param [in] dataType data type of target value
  169. * @return RT_ERROR_NONE for complete
  170. */
  171. RTS_API rtError_t rtStreamSwitchN(void *ptr, uint32_t size, void *valuePtr, rtStream_t *trueStreamPtr,
  172. uint32_t elementSize, rtStream_t stm, rtSwitchDataType_t dataType);
  173. /*
  174. * @ingroup dvrt_stream
  175. * @brief enable debug for dump overflow exception with stream
  176. * @param [in] addr: ddr address of kernel exception dumpped
  177. * @param [in] stm: stream handle
  178. * @param [in] flag: debug flag
  179. * @return RT_ERROR_NONE for ok
  180. * @return RT_ERROR_INVALID_VALUE for error input
  181. */
  182. RTS_API rtError_t rtDebugRegisterForStream(rtStream_t stm, uint32_t flag, const void *addr,
  183. uint32_t *streamId, uint32_t *taskId);
  184. /*
  185. * @ingroup rt_model
  186. * @brief disable debug for dump overflow exception with stream
  187. * @param [in] stm: stream handle
  188. * @return RT_ERROR_NONE for ok
  189. * @return RT_ERROR_INVALID_VALUE for error input
  190. */
  191. RTS_API rtError_t rtDebugUnRegisterForStream(rtStream_t stm);
  192. #if defined(__cplusplus)
  193. }
  194. #endif
  195. #endif // CCE_RUNTIME_STREAM_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