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model_saver.cc 3.5 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. Status ModelSaver::SaveJsonToFile(const char *file_path, const Json &model) {
  28. Status ret = SUCCESS;
  29. if (file_path == nullptr || SUCCESS != CheckPath(file_path)) {
  30. GELOGE(FAILED, "[Check][OutputFile]Failed, file %s", file_path);
  31. REPORT_CALL_ERROR("E19999", "Output file %s check invalid", file_path);
  32. return FAILED;
  33. }
  34. std::string model_str;
  35. try {
  36. model_str = model.dump(kInteval, ' ', false, Json::error_handler_t::ignore);
  37. } catch (std::exception &e) {
  38. REPORT_INNER_ERROR("E19999", "Failed to convert JSON to string, reason: %s, savefile:%s.", e.what(), file_path);
  39. GELOGE(FAILED, "[Convert][File]Failed to convert JSON to string, file %s, reason %s",
  40. file_path, e.what());
  41. return FAILED;
  42. } catch (...) {
  43. REPORT_INNER_ERROR("E19999", "Failed to convert JSON to string, savefile:%s.", file_path);
  44. GELOGE(FAILED, "[Convert][File]Failed to convert JSON to string, file %s", file_path);
  45. return FAILED;
  46. }
  47. char real_path[MMPA_MAX_PATH] = {0};
  48. GE_CHK_BOOL_TRUE_EXEC_WITH_LOG(strlen(file_path) >= MMPA_MAX_PATH, return FAILED, "file path is too long!");
  49. GE_IF_BOOL_EXEC(mmRealPath(file_path, real_path, MMPA_MAX_PATH) != EN_OK,
  50. GELOGI("File %s does not exit, it will be created.", file_path));
  51. // Open file
  52. mmMode_t mode = M_IRUSR | M_IWUSR;
  53. int32_t fd = mmOpen2(real_path, M_RDWR | M_CREAT | O_TRUNC, mode);
  54. if (fd == EN_ERROR || fd == EN_INVALID_PARAM) {
  55. ErrorManager::GetInstance().ATCReportErrMessage("E19001", {"file", "errmsg"}, {file_path, strerror(errno)});
  56. GELOGE(FAILED, "[Open][File]Failed, file %s, errmsg %s", file_path, strerror(errno));
  57. return FAILED;
  58. }
  59. const char *model_char = model_str.c_str();
  60. uint32_t len = static_cast<uint32_t>(model_str.length());
  61. // Write data to file
  62. mmSsize_t mmpa_ret = mmWrite(fd, const_cast<void *>((const void *)model_char), len);
  63. if (mmpa_ret == EN_ERROR || mmpa_ret == EN_INVALID_PARAM) {
  64. ErrorManager::GetInstance().ATCReportErrMessage(
  65. "E19004", {"file", "errmsg"}, {file_path, strerror(errno)});
  66. // Need to both print the error info of mmWrite and mmClose, so return ret after mmClose
  67. GELOGE(FAILED, "[Write][Data]To file %s failed. errno %ld, errmsg %s",
  68. 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