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hccl_continuous_memcpy_pass.h 2.1 kB

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. #ifndef GE_GRAPH_PASSES_HCCL_CONTINUOUS_MEMCPY_PASS_H_
  17. #define GE_GRAPH_PASSES_HCCL_CONTINUOUS_MEMCPY_PASS_H_
  18. #include <string>
  19. #include <unordered_map>
  20. #include "graph/graph.h"
  21. #include "inc/graph_pass.h"
  22. namespace ge {
  23. class HcclContinuousMemcpyPass : public GraphPass {
  24. public:
  25. Status Run(ge::ComputeGraphPtr graph);
  26. Status ClearStatus() override;
  27. private:
  28. NodePtr CreateIdentityNode(const ComputeGraphPtr &graph, const OutDataAnchorPtr &out_data_anchor);
  29. NodePtr CreateAssignNode(const ComputeGraphPtr &graph, const OutDataAnchorPtr &out_data_anchor);
  30. std::string CheckDuplicateName(const std::string &node_name);
  31. Status ModifyEdgeConnection(const ComputeGraphPtr &graph, const OutDataAnchorPtr &src_out_anchor,
  32. const InDataAnchorPtr &hccl_in_anchor);
  33. Status InsertIdentityBeforeHccl(const ComputeGraphPtr &graph, const OutDataAnchorPtr &src_out_anchor,
  34. const InDataAnchorPtr &hccl_in_anchor);
  35. Status InsertAssignAfterBroadcastIfNeed(const ComputeGraphPtr &graph,
  36. const OutDataAnchorPtr &src_out_anchor,
  37. const InDataAnchorPtr &hccl_in_anchor);
  38. Status ContinuousInputProcess(const ComputeGraphPtr &graph, const NodePtr node);
  39. Status P2pmemInputProcess(const ComputeGraphPtr &graph, const NodePtr node);
  40. bool IsDataNode(const std::string& node_type);
  41. std::map<std::string, uint32_t> node_num_map_;
  42. };
  43. } // namespace ge
  44. #endif // GE_GRAPH_PASSES_HCCL_MEMCPY_PASS_H_

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