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kernel.h 19 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_KERNEL_H__
  14. #define __CCE_RUNTIME_KERNEL_H__
  15. #include "base.h"
  16. #include "stream.h"
  17. #if defined(__cplusplus) && !defined(COMPILE_OMG_PACKAGE)
  18. extern "C" {
  19. #endif
  20. /**
  21. * @ingroup rt_kernel
  22. * @brief shared memory data control
  23. */
  24. typedef struct tagRtSmData {
  25. uint64_t L2_mirror_addr; // preload or swap source address
  26. uint32_t L2_data_section_size; // every data size
  27. uint8_t L2_preload; // 1 - preload from mirrorAddr, 0 - no preload
  28. uint8_t modified; // 1 - data will be modified by kernel, 0 - no modified
  29. uint8_t priority; // data priority
  30. int8_t prev_L2_page_offset_base; // remap source section offset
  31. uint8_t L2_page_offset_base; // remap destination section offset
  32. uint8_t L2_load_to_ddr; // 1 - need load out, 0 - no need
  33. uint8_t reserved[2]; // reserved
  34. } rtSmData_t;
  35. /**
  36. * @ingroup rt_kernel
  37. * @brief shared memory description
  38. */
  39. typedef struct tagRtSmCtrl {
  40. rtSmData_t data[8]; // data description
  41. uint64_t size; // max page Num
  42. uint8_t remap[64]; /* just using for static remap mode, default:0xFF
  43. array index: virtual l2 page id, array value: physic l2 page id */
  44. uint8_t l2_in_main; // 0-DDR, 1-L2, default:0xFF
  45. uint8_t reserved[3];
  46. } rtSmDesc_t;
  47. typedef rtSmDesc_t rtL2Ctrl_t;
  48. /**
  49. * @ingroup rt_kernel
  50. * @brief device binary type
  51. */
  52. typedef struct tagRtDevBinary {
  53. uint32_t magic; // magic number
  54. uint32_t version; // version of binary
  55. const void *data; // binary data
  56. uint64_t length; // binary length
  57. } rtDevBinary_t;
  58. /**
  59. * @ingroup rt_kernel
  60. * @brief function mode type
  61. */
  62. #define ONLINE_PROF_MAX_PMU_NUM (8)
  63. typedef struct ProfilefDataInfo {
  64. const void *stubFunc;
  65. uint32_t blockDim;
  66. const void *args;
  67. uint32_t argsSize;
  68. rtSmDesc_t *smDesc;
  69. rtStream_t stream;
  70. uint64_t totalcycle;
  71. uint64_t ovcycle;
  72. uint64_t pmu_cnt[ONLINE_PROF_MAX_PMU_NUM];
  73. } rtProfDataInfo_t;
  74. /**
  75. * @ingroup rt_kernel
  76. * @brief function mode type
  77. */
  78. typedef enum {
  79. FUNC_MODE_NORMAL = 0,
  80. FUNC_MODE_PCTRACE_USERPROFILE_RECORDLOOP,
  81. FUNC_MODE_PCTRACE_USERPROFILE_SKIPLOOP,
  82. FUNC_MODE_PCTRACE_CYCLECNT_RECORDLOOP,
  83. FUNC_MODE_PCTRACE_CYCLECNT_SKIPLOOP,
  84. FUNC_MODE_BUTT
  85. } rtFuncModeType_t;
  86. /**
  87. * @ingroup rt_kernel
  88. * @brief kernel info
  89. */
  90. typedef struct rtKernelInfo {
  91. uint64_t task_offset; // kernel offset in module
  92. /* flowtable */
  93. void *arg; // launch kernel arg
  94. uint32_t arg_size;
  95. /* module */
  96. void *module_addr; // module::baseaddr_
  97. uint32_t module_size;
  98. } *rtKernelInfo_t;
  99. /**
  100. * @ingroup rt_KernelConfigDump
  101. * @brief device dump type
  102. */
  103. typedef enum tagRtDumpKind {
  104. RT_DATA_DUMP_KIND_INVALID = -1,
  105. RT_DATA_DUMP_KIND_DUMP = 0,
  106. RT_DATA_DUMP_KIND_RESERVED
  107. } rtDumpKind_t;
  108. /**
  109. * @ingroup rt_kernel
  110. * @brief report callback
  111. */
  112. typedef rtError_t (*rtKernelReportCallback)(rtStream_t stream, rtKernelInfo_t kernelInfo);
  113. /**
  114. * @ingroup rt_kernel
  115. * @brief stream report callback
  116. */
  117. typedef void (*rtCallback_t)(void *fnData);
  118. /**
  119. * @ingroup rt_kernel
  120. * @brief magic number of plain binary for aicore
  121. */
  122. #define RT_DEV_BINARY_MAGIC_PLAIN 0xabceed50
  123. /**
  124. * @ingroup rt_kernel
  125. * @brief magic number of plain binary for aicpu
  126. */
  127. #define RT_DEV_BINARY_MAGIC_PLAIN_AICPU 0xabceed51
  128. /**
  129. * @ingroup rt_kernel
  130. * @brief magic number of plain binary for aivector
  131. */
  132. #define RT_DEV_BINARY_MAGIC_PLAIN_AIVEC 0xabceed52
  133. /**
  134. * @ingroup rt_kernel
  135. * @brief magic number of elf binary for aicore
  136. */
  137. #define RT_DEV_BINARY_MAGIC_ELF 0x43554245
  138. /**
  139. * @ingroup rt_kernel
  140. * @brief magic number of elf binary for aicpu
  141. */
  142. #define RT_DEV_BINARY_MAGIC_ELF_AICPU 0x41415243
  143. /**
  144. * @ingroup rt_kernel
  145. * @brief magic number of elf binary for aivector
  146. */
  147. #define RT_DEV_BINARY_MAGIC_ELF_AIVEC 0x41415246
  148. /**
  149. * @ingroup rt_kernel
  150. * @brief magic number of elf binary for aicube
  151. */
  152. #define RT_DEV_BINARY_MAGIC_ELF_AICUBE 0x41494343
  153. /**
  154. * @ingroup rt_kernel_flags
  155. * @brief kernel op bit flags
  156. */
  157. #define RT_KERNEL_DEFAULT (0x00)
  158. #define RT_KERNEL_CONVERT (0x01)
  159. #define RT_KERNEL_DUMPFLAG (0x02)
  160. #define RT_FUSION_KERNEL_DUMPFLAG (0x04)
  161. #define RT_KERNEL_CUSTOM_AICPU (0x08)
  162. // STARS topic scheduler sqe : topic_type
  163. #define RT_KERNEL_DEVICE_FIRST (0x10)
  164. #define RT_KERNEL_HOST_ONLY (0x20)
  165. #define RT_KERNEL_HOST_FIRST (0x40)
  166. /**
  167. * @ingroup rt_kernel
  168. * @brief kernel mode
  169. **/
  170. #define RT_DEFAULT_KERNEL_MODE (0x00)
  171. #define RT_NORMAL_KERNEL_MODE (0x01)
  172. #define RT_ALL_KERNEL_MODE (0x02)
  173. /**
  174. * @ingroup rt_kernel
  175. * @brief kernel L1 Fusion Dump bit flags
  176. */
  177. #define RT_DDR_ADDR (0x0)
  178. /**
  179. * @ingroup rt_kernel
  180. * @brief register device binary
  181. * @param [in] bin device binary description
  182. * @param [out] handle device binary handle
  183. * @return RT_ERROR_NONE for ok
  184. * @return RT_ERROR_INVALID_VALUE for error input
  185. */
  186. RTS_API rtError_t rtDevBinaryRegister(const rtDevBinary_t *bin, void **handle);
  187. /**
  188. * @ingroup rt_kernel
  189. * @brief register device binary with all kernel
  190. * @param [in] bin device binary description
  191. * @param [out] handle device binary handle
  192. * @return RT_ERROR_NONE for ok
  193. * @return RT_ERROR_INVALID_VALUE for error input
  194. */
  195. RTS_API rtError_t rtRegisterAllKernel(const rtDevBinary_t *bin, void **handle);
  196. /**
  197. * @ingroup rt_kernel
  198. * @brief register fast memeory device binary
  199. * @param [in] handle device binary handle
  200. * @return RT_ERROR_NONE for ok
  201. * @return RT_ERROR_INVALID_VALUE for error input
  202. */
  203. RTS_API rtError_t rtBinaryRegisterToFastMemory(void *handle);
  204. /**
  205. * @ingroup rt_kernel
  206. * @brief unregister device binary
  207. * @param [in] handle device binary handle
  208. * @return RT_ERROR_NONE for ok
  209. * @return RT_ERROR_INVALID_VALUE for error input
  210. */
  211. RTS_API rtError_t rtDevBinaryUnRegister(void *handle);
  212. /**
  213. * @ingroup rt_kernel
  214. * @brief register device binary metadata
  215. * @param [in] handle device binary description
  216. * @param [in] metadata device binary metadata
  217. * @return RT_ERROR_NONE for ok
  218. * @return RT_ERROR_INVALID_VALUE for error input
  219. */
  220. RTS_API rtError_t rtMetadataRegister(void *handle, const char *metadata);
  221. /**
  222. * @ingroup rt_kernel
  223. * @brief register device binary dependency
  224. * @param [in] mHandle master device binary description
  225. * @param [in] sHandle slave device binary description
  226. * @return RT_ERROR_NONE for ok
  227. * @return RT_ERROR_INVALID_VALUE for error input
  228. */
  229. RTS_API rtError_t rtDependencyRegister(void *mHandle, void *sHandle);
  230. /**
  231. * @ingroup rt_kernel
  232. * @brief register device function
  233. * @param [in] binHandle device binary handle
  234. * @param [in] stubFunc stub function
  235. * @param [in] stubName stub function name
  236. * @param [in] devFunc device function description. symbol name or address
  237. * offset, depending binary type.
  238. * @return RT_ERROR_NONE for ok
  239. * @return RT_ERROR_INVALID_VALUE for error input
  240. */
  241. RTS_API rtError_t rtFunctionRegister(void *binHandle, const void *stubFunc, const char *stubName, const void *devFunc,
  242. uint32_t funcMode);
  243. /**
  244. * @ingroup rt_kernel
  245. * @brief find stub function by name
  246. * @param [in] stubName stub function name
  247. * @param [out] stubFunc stub function
  248. * @return RT_ERROR_NONE for ok
  249. * @return RT_ERROR_INVALID_VALUE for error input
  250. */
  251. RTS_API rtError_t rtGetFunctionByName(const char *stubName, void **stubFunc);
  252. /**
  253. * @ingroup rt_kernel
  254. * @brief find addr by stub func
  255. * @param [in] stubFunc stub function
  256. * @param [out] addr
  257. * @return RT_ERROR_NONE for ok
  258. * @return RT_ERROR_INVALID_VALUE for error input
  259. */
  260. RTS_API rtError_t rtGetAddrByFun(const void *stubFunc, void **addr);
  261. /**
  262. * @ingroup rt_kernel
  263. * @brief query registered or not by stubName
  264. * @param [in] stubName stub function name
  265. * @return RT_ERROR_NONE for ok
  266. * @return RT_ERROR_INVALID_VALUE for error input
  267. */
  268. RTS_API rtError_t rtQueryFunctionRegistered(const char *stubName);
  269. /**
  270. * @ingroup rt_kernel
  271. * @brief config data dump
  272. * @param [in] dumpSizePerBlock dump size
  273. * @param [in] blockDim block dimentions
  274. * @param [in] dumpBaseAddr dump base address
  275. * @return RT_ERROR_NONE for ok
  276. * @return RT_ERROR_INVALID_VALUE for error input
  277. */
  278. RTS_API rtError_t rtKernelConfigDump(uint32_t kind, uint32_t dumpSizePerBlock, uint32_t blockDim, void **dumpBaseAddr,
  279. rtStream_t stream);
  280. /**
  281. * @ingroup rt_kernel
  282. * @brief launch kernel to device
  283. * @param [in] stubFunc stub function
  284. * @param [in] blockDim block dimentions
  285. * @param [in] args argments address for kernel function
  286. * @param [in] argsSize argements size
  287. * @param [in] smDesc shared memory description
  288. * @param [in] stream associated stream
  289. * @return RT_ERROR_NONE for ok
  290. * @return RT_ERROR_INVALID_VALUE for error input
  291. */
  292. RTS_API rtError_t rtKernelLaunch(const void *stubFunc, uint32_t blockDim, void *args, uint32_t argsSize,
  293. rtSmDesc_t *smDesc, rtStream_t stream);
  294. /**
  295. * @ingroup rt_kernel
  296. * @brief launch kernel with handle to device
  297. * @param [in] handle program
  298. * @param [in] devFunc device function description.
  299. * @param [in] blockDim block dimentions
  300. * @param [in] args argments address for kernel function
  301. * @param [in] argsSize argements size
  302. * @param [in] smDesc shared memory description
  303. * @param [in] stream associated stream
  304. * @param [in] kernelInfo kernel info
  305. * @return RT_ERROR_NONE for ok
  306. * @return RT_ERROR_INVALID_VALUE for error input
  307. */
  308. RTS_API rtError_t rtKernelLaunchWithHandle(void *handle, const void *devFunc, uint32_t blockDim, void *args, uint32_t argsSize,
  309. rtSmDesc_t *smDesc, rtStream_t stream_, const void *kernelInfo);
  310. /**
  311. * @ingroup rt_kernel
  312. * @brief launch kernel to device
  313. * @param [in] stubFunc stub function
  314. * @param [in] blockDim block dimentions
  315. * @param [in] args argments address for kernel function
  316. * @param [in] argsSize argements size
  317. * @param [in] smDesc shared memory description
  318. * @param [in] stream associated stream
  319. * @param [in] flag dump flag
  320. * @return RT_ERROR_NONE for ok
  321. * @return RT_ERROR_INVALID_VALUE for error input
  322. */
  323. RTS_API rtError_t rtKernelLaunchWithFlag(const void *stubFunc, uint32_t blockDim, void *args, uint32_t argsSize,
  324. rtSmDesc_t *smDesc, rtStream_t stream, uint32_t flags);
  325. /**
  326. * @ingroup rt_kernel
  327. * @brief launch kernel to device
  328. * @param [in] args argments address for kernel function
  329. * @param [in] argsSize argements size
  330. * @param [in] flags launch flags
  331. * @param [in] stream associated stream
  332. * @return RT_ERROR_NONE for ok
  333. * @return RT_ERROR_INVALID_VALUE for error input
  334. */
  335. RTS_API rtError_t rtKernelLaunchEx(void *args, uint32_t argsSize, uint32_t flags, rtStream_t stream);
  336. /**
  337. * @ingroup rt_kernel
  338. * @brief launch cpu kernel to device
  339. * @param [in] soName so name
  340. * @param [in] kernelName kernel name
  341. * @param [in] blockDim block dimentions
  342. * @param [in] args argments address for kernel function
  343. * @param [in] argsSize argments size
  344. * @param [in] smDesc shared memory description
  345. * @param [in] stream associated stream
  346. * @return RT_ERROR_NONE for ok
  347. * @return RT_ERROR_INVALID_VALUE for error input
  348. */
  349. RTS_API rtError_t rtCpuKernelLaunch(const void *soName, const void *kernelName, uint32_t blockDim, const void *args,
  350. uint32_t argsSize, rtSmDesc_t *smDesc, rtStream_t stream);
  351. /**
  352. * @ingroup rt_kernel
  353. * @brief launch cpu kernel to device with dump identifier
  354. * @param [in] soName so name
  355. * @param [in] kernelName kernel name
  356. * @param [in] blockDim block dimentions
  357. * @param [in] args argments address for kernel function
  358. * @param [in] argsSize argments size
  359. * @param [in] smDesc shared memory description
  360. * @param [in] stream associated stream
  361. * @param [in] flag dump flag or others function flag
  362. * @return RT_ERROR_NONE for ok
  363. * @return RT_ERROR_INVALID_VALUE for error input
  364. */
  365. RTS_API rtError_t rtCpuKernelLaunchWithFlag(const void *soName, const void *kernelName, uint32_t blockDim,
  366. const void *args, uint32_t argsSize, rtSmDesc_t *smDesc, rtStream_t stream,
  367. uint32_t flags);
  368. /**
  369. * @ingroup rt_kernel
  370. * @brief L1 fusion dump addr transfered to device
  371. * @param [in] model handle info
  372. * @param [in] addr ddr address of L1 Fusion Dump
  373. * @param [in] dumpSize memory size
  374. * @param [in] flag memory flag
  375. * @return RT_ERROR_NONE for ok
  376. * @return RT_ERROR_INVALID_VALUE for error input
  377. */
  378. RTS_API rtError_t rtDumpAddrSet(rtModel_t model, void *addr, uint32_t dumpSize, uint32_t flag);
  379. /**
  380. * @ingroup rt_kernel
  381. * @brief load dump info to aicpu
  382. * @param [in] dumpInfo dump info
  383. * @param [in] length length of dump info
  384. * @return RT_ERROR_NONE for ok
  385. * @return RT_ERROR_INVALID_VALUE for error input
  386. */
  387. RTS_API rtError_t rtDatadumpInfoLoad(const void *dumpInfo, uint32_t length);
  388. #ifndef __CLANG_CCE_RUNTIME_H__
  389. #define __CLANG_CCE_RUNTIME_H__
  390. /**
  391. * @ingroup rt_kernel
  392. * @brief configure call argment for next rtLaunch in current thread
  393. * @param [in] numBlocks block dimentions
  394. * @param [in] smDesc shared memory description
  395. * @param [in] stream associated stream
  396. * @return RT_ERROR_NONE for ok
  397. * @return RT_ERROR_INVALID_VALUE for error input
  398. */
  399. #ifdef __cplusplus
  400. RTS_API rtError_t rtConfigureCall(uint32_t numBlocks, rtSmDesc_t *smDesc = nullptr, rtStream_t stream = nullptr);
  401. #else
  402. RTS_API rtError_t rtConfigureCall(uint32_t numBlocks, rtSmDesc_t *smDesc, rtStream_t stream);
  403. #endif
  404. #endif // __CLANG_CCE_RUNTIME_H__
  405. /**
  406. * @ingroup rt_kernel
  407. * @brief setup argment for next rtLaunch in current thread
  408. * @param [in] arg argment address for kernel function
  409. * @param [in] size argment size
  410. * @param [in] offset argment table offset
  411. * @return RT_ERROR_NONE for ok
  412. * @return RT_ERROR_INVALID_VALUE for error input
  413. */
  414. RTS_API rtError_t rtSetupArgument(const void *arg, uint32_t size, uint32_t offset);
  415. /**
  416. * @ingroup rt_kernel
  417. * @brief launch kernel to device with previous setting kernel argment
  418. * and call argment
  419. * @param [in] stubFunc stub function
  420. * @return RT_ERROR_NONE for ok
  421. * @return RT_ERROR_INVALID_VALUE for error input
  422. */
  423. RTS_API rtError_t rtLaunch(const void *stubFunc);
  424. /**
  425. * @ingroup rt_kernel
  426. * @brief implicitly transfered data to device.
  427. * lifecycle end after next kernel task finish
  428. * @param [in] ptr host memory
  429. * @param [in] size host memory size
  430. * @param [in] flag reserved. set to 0
  431. * @param [out] arg returned arg. used for next kernel's arg.
  432. * @return RT_ERROR_NONE for ok
  433. * @return RT_ERROR_INVALID_VALUE for error input
  434. */
  435. RTS_API rtError_t rtKernelConfigTransArg(const void *ptr, uint64_t size, uint32_t flag, void **arg);
  436. /**
  437. * @ingroup rt_kernel
  438. * @brief start fusion kernels.
  439. * @param [in] stream stream for fusion kernels
  440. * @return RT_ERROR_NONE for ok
  441. * @return RT_ERROR_INVALID_VALUE for error input
  442. */
  443. RTS_API rtError_t rtKernelFusionStart(rtStream_t stream);
  444. /**
  445. * @ingroup rt_kernel
  446. * @brief end fusion kernels.
  447. * @param [in] stream stream for fusion kernels
  448. * @return RT_ERROR_NONE for ok
  449. * @return RT_ERROR_INVALID_VALUE for error input
  450. */
  451. RTS_API rtError_t rtKernelFusionEnd(rtStream_t stream);
  452. /**
  453. * @ingroup rt_kernel
  454. * @brief set kernelinfo callback
  455. * @param [in] callback
  456. * @return RT_ERROR_NONE for ok
  457. * @return RT_ERROR_INVALID_VALUE for error input
  458. */
  459. RTS_API rtError_t rtSetKernelReportCallback(rtKernelReportCallback callBack);
  460. /**
  461. * @ingroup rt_kernel
  462. * @brief subscribe stream callback report.
  463. * @param [in] threadId thread id for stream
  464. * @param [in] stream stream for subscribe
  465. * @return RT_ERROR_NONE for ok
  466. * @return RT_ERROR_INVALID_VALUE for error input
  467. */
  468. RTS_API rtError_t rtSubscribeReport(uint64_t threadId, rtStream_t stream);
  469. /**
  470. * @ingroup rt_kernel
  471. * @brief add callback launch task in stream.
  472. * @param [in] callBackFunc app callback function
  473. * @param [in] fnData user data
  474. * @param [in] stream subscribed stream
  475. * @return RT_ERROR_NONE for ok
  476. * @return RT_ERROR_INVALID_VALUE for error input
  477. */
  478. RTS_API rtError_t rtCallbackLaunch(rtCallback_t callBackFunc, void *fnData, rtStream_t stream, bool isBlock);
  479. /**
  480. * @ingroup rt_kernel
  481. * @brief process callback report.
  482. * @param [in] timeout if timeout=-1, while(1); else timeout
  483. * @return RT_ERROR_NONE for ok
  484. * @return RT_ERROR_INVALID_VALUE for error input
  485. */
  486. RTS_API rtError_t rtProcessReport(int32_t timeout);
  487. /**
  488. * @ingroup rt_kernel
  489. * @brief unsubscribe callback report.
  490. * @param [in] threadId thread id for stream
  491. * @param [in] stream stream for subscribe
  492. * @return RT_ERROR_NONE for ok
  493. * @return RT_ERROR_INVALID_VALUE for error input
  494. */
  495. RTS_API rtError_t rtUnSubscribeReport(uint64_t threadId, rtStream_t stream);
  496. /**
  497. * @ingroup profiling_base
  498. * @brief start online prof.
  499. * @return RT_ERROR_NONE for ok
  500. * @return RT_ERROR_INVALID_VALUE for error input
  501. */
  502. RTS_API rtError_t rtStartOnlineProf(rtStream_t stream, uint32_t sampleNum);
  503. /**
  504. * @ingroup profiling_base
  505. * @brief stop online prof.
  506. * @return RT_ERROR_NONE for ok
  507. * @return RT_ERROR_INVALID_VALUE for error input
  508. */
  509. RTS_API rtError_t rtStopOnlineProf(rtStream_t stream);
  510. /**
  511. * @ingroup profiling_base
  512. * @brief get online prof.
  513. * @return RT_ERROR_NONE for ok
  514. * @return RT_ERROR_INVALID_VALUE for error input
  515. */
  516. RTS_API rtError_t rtGetOnlineProfData(rtStream_t stream, rtProfDataInfo_t *pProfData, uint32_t profDataNum);
  517. /**
  518. * @ingroup profiling_base
  519. * @brief start mdc profiler.
  520. * @return RT_ERROR_NONE for ok
  521. * @return RT_ERROR_INVALID_VALUE for error input
  522. */
  523. RTS_API rtError_t rtStartMDCProfiler(void **addr, uint32_t length);
  524. /**
  525. * @ingroup profiling_base
  526. * @brief stop mdc profiler.
  527. * @return RT_ERROR_NONE for ok
  528. * @return RT_ERROR_INVALID_VALUE for error input
  529. */
  530. RTS_API rtError_t rtStopMDCProfiler(void *addr);
  531. #if defined(__cplusplus) && !defined(COMPILE_OMG_PACKAGE)
  532. }
  533. #endif
  534. #endif // __CCE_RUNTIME_KERNEL_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