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edge.cc 1.4 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/graph/edge.h"
  17. EG_NS_BEGIN
  18. Edge::Edge(const EdgeType type, const std::string &label, const Endpoint &src, const Endpoint &dst)
  19. : type_(type), label_(label), src_(src), dst_(dst) {}
  20. __DEF_EQUALS(Edge) {
  21. return (type_ == rhs.type_) && (src_ == rhs.src_) && (dst_ == rhs.dst_);
  22. }
  23. __DEF_COMP(Edge) {
  24. if (src_ < rhs.src_)
  25. return true;
  26. if ((src_ == rhs.src_) && (dst_ < rhs.dst_))
  27. return true;
  28. if ((src_ == rhs.src_) && (dst_ < rhs.dst_) && (type_ < rhs.type_))
  29. return true;
  30. return false;
  31. }
  32. EdgeType Edge::GetType() const {
  33. return type_;
  34. }
  35. std::string Edge::GetLabel() const {
  36. return label_;
  37. }
  38. Endpoint Edge::GetSrc() const {
  39. return src_;
  40. }
  41. Endpoint Edge::GetDst() const {
  42. return dst_;
  43. }
  44. 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