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model_saver.cc 3.6 kB

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  1. /**
  2. * Copyright 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 "common/model_saver.h"
  17. #include <securec.h>
  18. #include <cstdlib>
  19. #include <fstream>
  20. #include <string>
  21. #include "framework/common/debug/log.h"
  22. #include "framework/common/debug/ge_log.h"
  23. #include "framework/common/util.h"
  24. #include "common/util/error_manager/error_manager.h"
  25. namespace ge {
  26. const uint32_t kInteval = 2;
  27. FMK_FUNC_HOST_VISIBILITY FMK_FUNC_DEV_VISIBILITY Status ModelSaver::SaveJsonToFile(const char *file_path,
  28. const Json &model) {
  29. Status ret = SUCCESS;
  30. if (file_path == nullptr || SUCCESS != CheckPath(file_path)) {
  31. GELOGE(FAILED, "[Check][OutputFile]Failed, file %s", file_path);
  32. REPORT_CALL_ERROR("E19999", "Output file %s check invalid", file_path);
  33. return FAILED;
  34. }
  35. std::string model_str;
  36. try {
  37. model_str = model.dump(kInteval, ' ', false, Json::error_handler_t::ignore);
  38. } catch (std::exception &e) {
  39. ErrorManager::GetInstance().ATCReportErrMessage("E19007", {"exception"}, {e.what()});
  40. GELOGE(FAILED, "[Convert][File]Failed to convert JSON to string, file %s, reason %s",
  41. file_path, e.what());
  42. return FAILED;
  43. } catch (...) {
  44. ErrorManager::GetInstance().ATCReportErrMessage("E19008");
  45. GELOGE(FAILED, "[Convert][File]Failed to convert JSON to string, file %s", file_path);
  46. return FAILED;
  47. }
  48. char real_path[MMPA_MAX_PATH] = {0};
  49. GE_CHK_BOOL_TRUE_EXEC_WITH_LOG(strlen(file_path) >= MMPA_MAX_PATH, return FAILED, "file path is too long!");
  50. GE_IF_BOOL_EXEC(mmRealPath(file_path, real_path, MMPA_MAX_PATH) != EN_OK,
  51. GELOGI("File %s does not exit, it will be created.", file_path));
  52. // Open file
  53. mmMode_t mode = M_IRUSR | M_IWUSR;
  54. int32_t fd = mmOpen2(real_path, M_RDWR | M_CREAT | O_TRUNC, mode);
  55. if (fd == EN_ERROR || fd == EN_INVALID_PARAM) {
  56. ErrorManager::GetInstance().ATCReportErrMessage("E19001", {"file", "errmsg"}, {file_path, strerror(errno)});
  57. GELOGE(FAILED, "[Open][File]Failed, file %s, errmsg %s", file_path, strerror(errno));
  58. return FAILED;
  59. }
  60. const char *model_char = model_str.c_str();
  61. uint32_t len = static_cast<uint32_t>(model_str.length());
  62. // Write data to file
  63. mmSsize_t mmpa_ret = mmWrite(fd, const_cast<void *>((const void *)model_char), len);
  64. if (mmpa_ret == EN_ERROR || mmpa_ret == EN_INVALID_PARAM) {
  65. ErrorManager::GetInstance().ATCReportErrMessage(
  66. "E19004", {"file", "errmsg"}, {file_path, strerror(errno)});
  67. // Need to both print the error info of mmWrite and mmClose, so return ret after mmClose
  68. GELOGE(FAILED, "[Write][Data]To file %s failed. errno %ld, errmsg %s", file_path, mmpa_ret, strerror(errno));
  69. ret = FAILED;
  70. }
  71. // Close file
  72. if (mmClose(fd) != EN_OK) {
  73. GELOGE(FAILED, "[Close][File]Failed, file %s, errmsg %s", file_path, strerror(errno));
  74. REPORT_CALL_ERROR("E19999", "Close file %s failed, errmsg %s", file_path, strerror(errno));
  75. ret = FAILED;
  76. }
  77. return ret;
  78. }
  79. } // 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