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graph_layout.cc 1.3 kB

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  1. /**
  2. * Copyright 2021 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 "easy_graph/layout/graph_layout.h"
  17. #include "easy_graph/layout/layout_executor.h"
  18. #include "easy_graph/layout/engines/graph_easy/graph_easy_executor.h"
  19. #include "easy_graph/graph/graph.h"
  20. EG_NS_BEGIN
  21. namespace {
  22. GraphEasyExecutor default_executor;
  23. }
  24. void GraphLayout::Config(LayoutExecutor &executor, const LayoutOption *opts) {
  25. this->executor_ = &executor;
  26. options_ = opts;
  27. }
  28. Status GraphLayout::Layout(const Graph &graph, const LayoutOption *opts) {
  29. const LayoutOption *options = opts ? opts : this->options_;
  30. if (!executor_) return static_cast<LayoutExecutor &>(default_executor).Layout(graph, options);
  31. return executor_->Layout(graph, options);
  32. }
  33. EG_NS_END

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