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model_helper.cc 20 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. #include "framework/common/helper/model_helper.h"
  17. #include "common/ge/ge_util.h"
  18. #include "common/util/error_manager/error_manager.h"
  19. #include "framework/common/debug/log.h"
  20. #include "framework/common/util.h"
  21. #include "framework/common/debug/ge_log.h"
  22. #include "framework/omg/version.h"
  23. #include "graph/debug/ge_attr_define.h"
  24. #include "graph/load/new_model_manager/davinci_model_parser.h"
  25. #include "graph/utils/attr_utils.h"
  26. #include "graph/utils/graph_utils.h"
  27. using domi::ModelTaskDef;
  28. using std::string;
  29. namespace {
  30. const int64_t kOriginalOmPartitionNum = 1;
  31. }
  32. namespace ge {
  33. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY ModelHelper::~ModelHelper() { (void)ReleaseLocalModelData(); }
  34. Status ModelHelper::SaveModelPartition(std::shared_ptr<OmFileSaveHelper> &om_file_save_helper, ModelPartitionType type,
  35. const uint8_t *data, size_t size) {
  36. if (size < 1 || size > UINT32_MAX) {
  37. GELOGE(PARAM_INVALID, "Add model partition failed, partition size %zu invalid", size);
  38. if (size > UINT32_MAX) {
  39. string item = "item";
  40. if (type == MODEL_DEF) {
  41. item = "model info";
  42. } else if (type == WEIGHTS_DATA) {
  43. item = "weight data";
  44. } else if (type == TASK_INFO) {
  45. item = "task info";
  46. } else if (type == TBE_KERNELS) {
  47. item = "tbe kernels";
  48. } else if (type == CUST_AICPU_KERNELS) {
  49. item = "aicpu kernels";
  50. }
  51. ErrorManager::GetInstance().ATCReportErrMessage("E19023", {"size", "item", "maxsize"},
  52. {std::to_string(size), item, std::to_string(UINT32_MAX)});
  53. }
  54. return PARAM_INVALID;
  55. }
  56. if (data == nullptr) {
  57. GELOGE(PARAM_INVALID, "Add model partition failed, data is null");
  58. return PARAM_INVALID;
  59. }
  60. ModelPartition partition_model;
  61. partition_model.data = const_cast<uint8_t *>(data);
  62. partition_model.size = static_cast<uint32_t>(size);
  63. partition_model.type = type;
  64. if (om_file_save_helper->AddPartition(partition_model) != SUCCESS) {
  65. GELOGE(PARAM_INVALID, "Add model partition failed, partition size %zu", size);
  66. return PARAM_INVALID;
  67. }
  68. return SUCCESS;
  69. }
  70. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status ModelHelper::SaveToOmModel(const GeModelPtr &ge_model,
  71. const SaveParam &save_param,
  72. const std::string &output_file,
  73. ModelBufferData &model) {
  74. if (output_file.empty()) {
  75. GELOGE(FAILED, "GraphBuilder SaveModel received invalid file name prefix");
  76. return FAILED;
  77. }
  78. GE_IF_BOOL_EXEC(ge_model == nullptr, GELOGE(FAILED, "Ge_model is nullptr"); return FAILED);
  79. std::shared_ptr<OmFileSaveHelper> om_file_save_helper = ge::MakeShared<OmFileSaveHelper>();
  80. GE_CHECK_NOTNULL(om_file_save_helper);
  81. ModelPtr model_tmp = ge::MakeShared<ge::Model>(ge_model->GetName(), ge_model->GetPlatformVersion());
  82. if (model_tmp == nullptr) {
  83. GELOGE(FAILED, "Create Model %s Ptr failed", ge_model->GetName().c_str());
  84. return FAILED;
  85. }
  86. model_tmp->SetGraph(ge_model->GetGraph());
  87. model_tmp->SetVersion(ge_model->GetVersion());
  88. model_tmp->SetAttr(ge_model->MutableAttrMap());
  89. ge::Buffer model_buffer;
  90. (void)model_tmp->Save(model_buffer);
  91. GELOGD("MODEL_DEF size is %zu", model_buffer.GetSize());
  92. if (model_buffer.GetSize() > 0) {
  93. if (SaveModelPartition(om_file_save_helper, ModelPartitionType::MODEL_DEF, model_buffer.GetData(),
  94. model_buffer.GetSize()) != SUCCESS) {
  95. GELOGE(PARAM_INVALID, "Add model graph partition failed");
  96. return PARAM_INVALID;
  97. }
  98. }
  99. auto ge_model_weight = ge_model->GetWeight();
  100. GELOGD("WEIGHTS_DATA size is %zu, %p", ge_model_weight.GetSize(), ge_model_weight.GetData());
  101. // weight is not necessary
  102. if (ge_model_weight.GetSize() > 0) {
  103. GE_CHK_STATUS_RET(SaveModelPartition(om_file_save_helper, ModelPartitionType::WEIGHTS_DATA,
  104. ge_model_weight.GetData(), ge_model_weight.GetSize()),
  105. "Add weight partition failed");
  106. }
  107. TBEKernelStore tbe_kernel_store = ge_model->GetTBEKernelStore();
  108. GELOGD("TBE_KERNELS size is %zu", tbe_kernel_store.DataSize());
  109. if (tbe_kernel_store.DataSize() > 0) {
  110. GE_CHK_STATUS_RET(SaveModelPartition(om_file_save_helper, ModelPartitionType::TBE_KERNELS, tbe_kernel_store.Data(),
  111. tbe_kernel_store.DataSize()),
  112. "Add tbe kernel partition failed");
  113. }
  114. // no need to check value, DATA->NetOutput
  115. (void)tbe_kernel_store.Load(tbe_kernel_store.Data(), tbe_kernel_store.DataSize());
  116. CustAICPUKernelStore cust_aicpu_kernel_store = ge_model->GetCustAICPUKernelStore();
  117. GELOGD("cust aicpu kernels size is %zu", cust_aicpu_kernel_store.DataSize());
  118. if (cust_aicpu_kernel_store.DataSize() > 0) {
  119. GE_CHK_STATUS_RET(SaveModelPartition(om_file_save_helper, ModelPartitionType::CUST_AICPU_KERNELS,
  120. cust_aicpu_kernel_store.Data(), cust_aicpu_kernel_store.DataSize()),
  121. "Add cust aicpu kernel partition failed");
  122. }
  123. std::shared_ptr<ModelTaskDef> model_task_def = ge_model->GetModelTaskDefPtr();
  124. if (model_task_def == nullptr) {
  125. GELOGE(MEMALLOC_FAILED, "Create model task def ptr failed");
  126. return FAILED;
  127. }
  128. size_t partition_task_size = model_task_def->ByteSizeLong();
  129. GE_IF_BOOL_EXEC(partition_task_size == 0 || partition_task_size > INT_MAX,
  130. GELOGE(FAILED, "Model_def's byte size (%zu) is invalid!", partition_task_size);
  131. return FAILED);
  132. ge::Buffer task_buffer(partition_task_size);
  133. if (task_buffer.GetSize() == 0) {
  134. GELOGE(MEMALLOC_FAILED, "Alloc model task def buffer failed");
  135. return MEMALLOC_FAILED;
  136. }
  137. (void)model_task_def->SerializePartialToArray(task_buffer.GetData(), static_cast<int>(partition_task_size));
  138. GELOGD("TASK_INFO op_size:%d, stream_num:%u", model_task_def->op().size(), model_task_def->stream_num());
  139. GELOGD("TASK_INFO size is %zu", partition_task_size);
  140. if (SaveModelPartition(om_file_save_helper, ModelPartitionType::TASK_INFO, task_buffer.GetData(),
  141. partition_task_size) != SUCCESS) {
  142. GELOGE(PARAM_INVALID, "Add model task def partition failed");
  143. return PARAM_INVALID;
  144. }
  145. // Save target/version to model_header
  146. ModelFileHeader &model_header = om_file_save_helper->GetModelFileHeader();
  147. model_header.platform_type = ge_model->GetPlatformType();
  148. model_header.om_ir_version = ge_model->GetVersion();
  149. std::string platform_version = ge_model->GetPlatformVersion();
  150. errno_t err;
  151. err = memcpy_s(model_header.platform_version, PLATFORM_VERSION_LEN, platform_version.c_str(),
  152. platform_version.size() + 1);
  153. if (err != EOK) {
  154. GELOGE(MEMALLOC_FAILED, "ModelHelper SaveModel failed while allocating memory for platform_version.");
  155. return MEMALLOC_FAILED;
  156. }
  157. string version = reinterpret_cast<char *>(model_header.platform_version);
  158. GELOGD("Platform version save: %s", version.c_str());
  159. size_t name_size = ge_model->GetName().size();
  160. name_size = name_size > (MODEL_NAME_LENGTH - 1) ? (MODEL_NAME_LENGTH - 1) : name_size;
  161. err = memcpy_s(model_header.name, MODEL_NAME_LENGTH, ge_model->GetName().c_str(), name_size);
  162. if (err != EOK) {
  163. GELOGE(MEMALLOC_FAILED, "ModelHelper SaveModel failed while allocating memory for name");
  164. return MEMALLOC_FAILED;
  165. }
  166. string model_name = reinterpret_cast<char *>(model_header.name);
  167. GELOGD("Model name save:%s", model_name.c_str());
  168. Status ret = om_file_save_helper->SaveModel(save_param, output_file.c_str(), model, is_offline_);
  169. if (ret != SUCCESS) {
  170. GELOGE(FAILED, "OmFileSaveHelper SaveModel return fail.");
  171. return FAILED;
  172. }
  173. return SUCCESS;
  174. }
  175. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status
  176. ModelHelper::SaveOriginalGraphToOmModel(const ge::Graph &graph, const std::string &output_file) {
  177. if (output_file.empty()) {
  178. GELOGE(FAILED, "SaveModel received invalid file name prefix");
  179. return FAILED;
  180. }
  181. // Get computegraph from graph
  182. auto compute_graph = ge::GraphUtils::GetComputeGraph(graph);
  183. if (compute_graph == nullptr) {
  184. GELOGE(FAILED, "SaveModel fail for compute_graph null");
  185. return FAILED;
  186. }
  187. GE_DUMP(compute_graph, "OriginalGraph");
  188. // Model
  189. ModelPtr model_ptr = ge::MakeShared<ge::Model>();
  190. GE_CHECK_NOTNULL_EXEC(model_ptr, return MEMALLOC_FAILED);
  191. std::string original_model_name = compute_graph->GetName() + "_original";
  192. model_ptr->SetName(original_model_name);
  193. model_ptr->SetGraph(graph);
  194. model_ptr->SetVersion(static_cast<uint32_t>(OM_PROTO_VERSION));
  195. string framework_version;
  196. Status frame_rt = PlatformVersionManager::GetPlatformVersion(framework_version);
  197. if (frame_rt == SUCCESS) {
  198. uint32_t counter = 0;
  199. string model_framework_version = framework_version + "." + std::to_string(counter);
  200. model_ptr->SetPlatformVersion(model_framework_version);
  201. }
  202. // Model def
  203. ge::Buffer model_buffer;
  204. ge::graphStatus status = model_ptr->Save(model_buffer);
  205. if (status != ge::GRAPH_SUCCESS) {
  206. GELOGE(FAILED, "SaveModel fail for save buffer fail");
  207. return FAILED;
  208. }
  209. std::shared_ptr<OmFileSaveHelper> om_file_save_helper = ge::MakeShared<OmFileSaveHelper>();
  210. GE_CHECK_NOTNULL_EXEC(om_file_save_helper, return MEMALLOC_FAILED);
  211. ModelPartition partition_model;
  212. partition_model.data = model_buffer.GetData();
  213. partition_model.size = static_cast<uint32_t>(model_buffer.GetSize());
  214. partition_model.type = ModelPartitionType::MODEL_DEF;
  215. GELOGI("Original Model type[%u],size[%u]", partition_model.type, partition_model.size);
  216. if (partition_model.data != nullptr && partition_model.size > 0) {
  217. (void)om_file_save_helper->AddPartition(partition_model);
  218. // Condition of AddPartition is established, no need to check value
  219. }
  220. // Save target/version to model_header
  221. ModelFileHeader &model_header = om_file_save_helper->GetModelFileHeader();
  222. model_header.om_ir_version = model_ptr->GetVersion();
  223. model_header.headsize = MODEL_FILE_HEAD_LEN;
  224. std::string platform_version = model_ptr->GetPlatformVersion();
  225. errno_t err = memcpy_s(model_header.platform_version, PLATFORM_VERSION_LEN, platform_version.c_str(),
  226. platform_version.size() + 1);
  227. if (err != EOK) {
  228. GELOGE(FAILED, "ModelHelper SaveModel failed for platform_version");
  229. return FAILED;
  230. }
  231. size_t name_size = model_ptr->GetName().size();
  232. name_size = name_size > (MODEL_NAME_LENGTH - 1) ? (MODEL_NAME_LENGTH - 1) : name_size;
  233. err = memcpy_s(model_header.name, MODEL_NAME_LENGTH, model_ptr->GetName().c_str(), name_size);
  234. if (err != EOK) {
  235. GELOGE(FAILED, "ModelHelper SaveModel memory copy failed");
  236. return FAILED;
  237. }
  238. ModelBufferData model;
  239. Status ret = om_file_save_helper->SaveModelToFile(output_file.c_str(), model, is_offline_);
  240. return (ret == SUCCESS ? SUCCESS : FAILED);
  241. }
  242. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status ModelHelper::LoadModel(const ge::ModelData &model_data) {
  243. if (model_data.model_data == nullptr || model_data.model_len == 0) {
  244. GELOGE(ACL_ERROR_GE_EXEC_MODEL_DATA_SIZE_INVALID, "Model_data is nullptr, or model_data_size is 0");
  245. return ACL_ERROR_GE_EXEC_MODEL_DATA_SIZE_INVALID;
  246. }
  247. if (is_assign_model_) {
  248. GELOGE(ACL_ERROR_GE_EXEC_LOAD_MODEL_REPEATED, "Model helper has already loaded!");
  249. return ACL_ERROR_GE_EXEC_LOAD_MODEL_REPEATED;
  250. }
  251. if (ReleaseLocalModelData() != SUCCESS) {
  252. GELOGE(ACL_ERROR_GE_EXEC_RELEASE_MODEL_DATA, "ReleaseLocalModelData failed.");
  253. return ACL_ERROR_GE_EXEC_RELEASE_MODEL_DATA;
  254. }
  255. Status status = ge::DavinciModelParser::ParseModelContent(model_data, model_addr_tmp_, model_len_tmp_);
  256. if (status != SUCCESS) {
  257. GELOGE(status, "Parse model content failed!");
  258. return status;
  259. }
  260. file_header_ = reinterpret_cast<ModelFileHeader *>(model_data.model_data);
  261. OmFileLoadHelper om_load_helper;
  262. status = om_load_helper.Init(model_addr_tmp_, model_len_tmp_);
  263. if (status != SUCCESS) {
  264. GELOGE(status, "Om_load_helper init failed");
  265. model_addr_tmp_ = nullptr;
  266. return status;
  267. }
  268. auto partition_table = reinterpret_cast<ModelPartitionTable *>(model_addr_tmp_);
  269. if (partition_table->num == kOriginalOmPartitionNum) {
  270. model_addr_tmp_ = nullptr;
  271. GELOGE(ACL_ERROR_GE_EXEC_MODEL_PARTITION_NUM_INVALID, "om model is error,please use executable om model");
  272. return ACL_ERROR_GE_EXEC_MODEL_PARTITION_NUM_INVALID;
  273. }
  274. // Encrypt model need to del temp model/no encrypt model don't need to del model
  275. model_addr_tmp_ = nullptr;
  276. status = GenerateGeModel(om_load_helper);
  277. if (status != SUCCESS) {
  278. GELOGE(status, "GenerateGeModel failed");
  279. return status;
  280. }
  281. is_assign_model_ = true;
  282. return SUCCESS;
  283. }
  284. Status ModelHelper::GenerateGeModel(OmFileLoadHelper &om_load_helper) {
  285. model_ = ge::MakeShared<ge::GeModel>();
  286. GE_CHECK_NOTNULL(model_);
  287. Status ret = LoadModelData(om_load_helper);
  288. if (ret != SUCCESS) {
  289. return ACL_ERROR_GE_EXEC_LOAD_MODEL_PARTITION_FAILED;
  290. }
  291. ret = LoadWeights(om_load_helper);
  292. if (ret != SUCCESS) {
  293. return ACL_ERROR_GE_EXEC_LOAD_WEIGHT_PARTITION_FAILED;
  294. }
  295. ret = LoadTask(om_load_helper);
  296. if (ret != SUCCESS) {
  297. return ACL_ERROR_GE_EXEC_LOAD_TASK_PARTITION_FAILED;
  298. }
  299. ret = LoadTBEKernelStore(om_load_helper);
  300. if (ret != SUCCESS) {
  301. return ACL_ERROR_GE_EXEC_LOAD_KERNEL_PARTITION_FAILED;
  302. }
  303. ret = LoadCustAICPUKernelStore(om_load_helper);
  304. if (ret != SUCCESS) {
  305. return ACL_ERROR_GE_EXEC_LOAD_KERNEL_PARTITION_FAILED;
  306. }
  307. return SUCCESS;
  308. }
  309. Status ModelHelper::LoadModelData(OmFileLoadHelper &om_load_helper) {
  310. ModelPartition partition_model_def;
  311. // no need to check value, DATA->NetOutput
  312. om_load_helper.GetModelPartition(ModelPartitionType::MODEL_DEF, partition_model_def);
  313. GELOGD("Model_def partition addr:%p,size:%u", partition_model_def.data, partition_model_def.size);
  314. ge::Model model;
  315. if (ge::Model::Load(partition_model_def.data, partition_model_def.size, model) != SUCCESS) {
  316. GELOGE(INTERNAL_ERROR, "Load model failed.");
  317. return INTERNAL_ERROR;
  318. }
  319. SetModelToGeModel(model);
  320. return SUCCESS;
  321. }
  322. void ModelHelper::SetModelToGeModel(ge::Model &model) {
  323. model_->SetGraph(model.GetGraph());
  324. model_->SetName(model.GetName());
  325. model_->SetVersion(model.GetVersion());
  326. model_->SetPlatformVersion(model.GetPlatformVersion());
  327. model_->SetAttr(model.MutableAttrMap());
  328. }
  329. Status ModelHelper::LoadWeights(OmFileLoadHelper &om_load_helper) {
  330. ModelPartition partition;
  331. if (om_load_helper.GetModelPartition(ModelPartitionType::WEIGHTS_DATA, partition) != SUCCESS) {
  332. GELOGE(FAILED, "Get weight model partition failed.");
  333. return FAILED;
  334. }
  335. ge::Buffer weight = ge::Buffer::CopyFrom(partition.data, partition.size);
  336. model_->SetWeight(weight);
  337. GELOGD("GetWeight size:%u", partition.size);
  338. return SUCCESS;
  339. }
  340. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status ModelHelper::LoadTask(OmFileLoadHelper &om_load_helper) {
  341. ModelPartition task_partition;
  342. if (om_load_helper.GetModelPartition(ModelPartitionType::TASK_INFO, task_partition) != SUCCESS) {
  343. GELOGE(FAILED, "Get task model partition failed.");
  344. return FAILED;
  345. }
  346. std::shared_ptr<ModelTaskDef> task = ge::MakeShared<ModelTaskDef>();
  347. GE_CHECK_NOTNULL(task);
  348. if (task_partition.size != 0) {
  349. if (!ReadProtoFromArray(task_partition.data, task_partition.size, task.get())) {
  350. GELOGE(INTERNAL_ERROR, "ReadProtoFromArray failed.");
  351. return INTERNAL_ERROR;
  352. }
  353. GELOGD("TASK_INFO op_size:%d, stream_num:%u", task->op().size(), task->stream_num());
  354. }
  355. model_->SetModelTaskDef(task);
  356. return SUCCESS;
  357. }
  358. Status ModelHelper::LoadTBEKernelStore(OmFileLoadHelper &om_load_helper) {
  359. // Load tbe kernels
  360. ModelPartition partition_kernel_def;
  361. TBEKernelStore kernel_store;
  362. if (om_load_helper.GetModelPartition(ModelPartitionType::TBE_KERNELS, partition_kernel_def) == SUCCESS) {
  363. GELOGD("Kernels partition size:%u", partition_kernel_def.size);
  364. if (kernel_store.Load(partition_kernel_def.data, partition_kernel_def.size)) {
  365. GELOGD("Load tbe kernels success");
  366. } else {
  367. GELOGW("Load tbe kernels failed");
  368. }
  369. }
  370. model_->SetTBEKernelStore(kernel_store);
  371. return SUCCESS;
  372. }
  373. Status ModelHelper::LoadCustAICPUKernelStore(OmFileLoadHelper &om_load_helper) {
  374. // Load cust aicpu kernels
  375. ModelPartition partition_kernel_def;
  376. CustAICPUKernelStore kernel_store;
  377. if (om_load_helper.GetModelPartition(ModelPartitionType::CUST_AICPU_KERNELS, partition_kernel_def) == SUCCESS) {
  378. GELOGD("Kernels partition size:%u", partition_kernel_def.size);
  379. if (kernel_store.Load(partition_kernel_def.data, partition_kernel_def.size)) {
  380. GELOGI("Load cust aicpu kernels success");
  381. }
  382. }
  383. model_->SetCustAICPUKernelStore(kernel_store);
  384. return SUCCESS;
  385. }
  386. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY GeModelPtr ModelHelper::GetGeModel() {
  387. if (model_ != nullptr) {
  388. return model_;
  389. }
  390. GELOGI("Model has not been loaded!");
  391. std::shared_ptr<ge::GeModel> out_model = ge::MakeShared<ge::GeModel>();
  392. if (out_model == nullptr) {
  393. return nullptr;
  394. }
  395. return out_model;
  396. }
  397. Status ModelHelper::ReleaseLocalModelData() noexcept {
  398. Status result = SUCCESS;
  399. if (model_addr_tmp_ != nullptr) {
  400. errno_t ret = memset_s(static_cast<void *>(model_addr_tmp_), model_len_tmp_, 0, model_len_tmp_);
  401. if (ret != EOK) {
  402. GELOGE(FAILED, "Failed to memset memory, error-code %d", ret);
  403. result = FAILED;
  404. }
  405. delete[] model_addr_tmp_;
  406. model_addr_tmp_ = nullptr;
  407. model_len_tmp_ = 0;
  408. }
  409. return result;
  410. }
  411. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status ModelHelper::GetBaseNameFromFileName(const string &file_name,
  412. string &base_name) {
  413. GELOGD("Get base_name from file, file_name:%s", file_name.c_str());
  414. GE_CHK_BOOL_EXEC_WARN(!file_name.empty(), return FAILED, "File path may not valid, check params --output");
  415. size_t start_position = 0;
  416. // using output as base_name (ignore ".om")
  417. size_t filename_suffixes = 3;
  418. if (file_name.find_last_of('/') != string::npos) {
  419. start_position = file_name.find_last_of('/') + 1;
  420. }
  421. size_t end_position = file_name.length() - filename_suffixes;
  422. base_name = file_name.substr(start_position, end_position - start_position);
  423. GE_CHK_BOOL_EXEC_WARN(!base_name.empty(), return FAILED, "Get base_name failed, check params --output");
  424. return SUCCESS;
  425. }
  426. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status
  427. ModelHelper::GetModelNameFromMergedGraphName(const string &graph_name, string &model_name) {
  428. GELOGD("Get model_name from graph_name, graph_name:%s", graph_name.c_str());
  429. // this can only be used after merged graph(graph name will be append with "_x", x is index);
  430. GE_CHK_BOOL_EXEC_WARN(!graph_name.empty(), return FAILED, "File path may not valid, check params --output");
  431. size_t start_position = 0;
  432. size_t end_position = graph_name.length();
  433. // using graph as model_name (ignore "_x", x is the index of graph)
  434. if (graph_name.find_last_of('_') != string::npos) {
  435. end_position = graph_name.find_last_of('_');
  436. }
  437. model_name = graph_name.substr(start_position, end_position);
  438. GE_CHK_BOOL_EXEC_WARN(!model_name.empty(), return FAILED, "Get model_name failed, check params --output");
  439. return SUCCESS;
  440. }
  441. } // namespace ge

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