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ge_local_context.cc 1.9 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 "./ge_local_context.h"
  17. #include <utility>
  18. namespace ge {
  19. namespace {
  20. thread_local GEThreadLocalContext thread_context;
  21. }
  22. GEThreadLocalContext &GetThreadLocalContext() { return thread_context; }
  23. graphStatus GEThreadLocalContext::GetOption(const string &key, string &option) {
  24. auto graph_iter = graph_options_.find(key);
  25. if (graph_iter != graph_options_.end()) {
  26. option = graph_iter->second;
  27. return GRAPH_SUCCESS;
  28. }
  29. auto session_iter = session_options_.find(key);
  30. if (session_iter != session_options_.end()) {
  31. option = session_iter->second;
  32. return GRAPH_SUCCESS;
  33. }
  34. auto global_iter = global_options_.find(key);
  35. if (global_iter != global_options_.end()) {
  36. option = global_iter->second;
  37. return GRAPH_SUCCESS;
  38. }
  39. return GRAPH_PARAM_INVALID;
  40. }
  41. void GEThreadLocalContext::SetGlobalOption(map<string, string> options_map) {
  42. global_options_.clear();
  43. global_options_ = std::move(options_map);
  44. }
  45. void GEThreadLocalContext::SetSessionOption(map<string, string> options_map) {
  46. session_options_.clear();
  47. session_options_ = std::move(options_map);
  48. }
  49. void GEThreadLocalContext::SetGraphOption(map<std::string, string> options_map) {
  50. graph_options_.clear();
  51. graph_options_ = std::move(options_map);
  52. }
  53. } // 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