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local_context.cc 1.3 kB

4 years ago
4 years ago
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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/local_context.h"
  17. #include "framework/common/debug/ge_log.h"
  18. namespace ge {
  19. namespace {
  20. thread_local OmgContext *omg_context = nullptr;
  21. thread_local OmeContext *ome_context = nullptr;
  22. }
  23. void SetLocalOmgContext(OmgContext &context) {
  24. omg_context = &context;
  25. }
  26. OmgContext &GetLocalOmgContext() {
  27. if (omg_context != nullptr) {
  28. return *omg_context;
  29. } else {
  30. GELOGW("omg_context is nullptr.");
  31. return domi::GetContext();
  32. }
  33. }
  34. void SetLocalOmeContext(OmeContext &context) {
  35. ome_context = &context;
  36. }
  37. OmeContext &GetLocalOmeContext() {
  38. if (ome_context != nullptr) {
  39. return *ome_context;
  40. }
  41. GELOGW("ome_context is nullptr.");
  42. static OmeContext context;
  43. return context;
  44. }
  45. }

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