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var_mem_assign_util.h 2.8 kB

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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_BUILD_MEMORY_VAR_MEM_ASSIGN_UTIL_H_
  17. #define GE_GRAPH_BUILD_MEMORY_VAR_MEM_ASSIGN_UTIL_H_
  18. #include <string>
  19. #include "framework/common/debug/log.h"
  20. #include "framework/common/ge_inner_error_codes.h"
  21. #include "graph/utils/node_utils.h"
  22. namespace ge {
  23. using GraphToNodeMap = std::map<ge::ComputeGraphPtr, std::map<std::string, ge::NodePtr>>;
  24. class VarMemAssignUtil {
  25. public:
  26. static Status AssignVarMemory(ge::ComputeGraphPtr &compute_graph);
  27. static Status AssignConstantOpMemory(ge::ComputeGraphPtr &compute_graph);
  28. static Status AssignStaticMemory2Node(ge::ComputeGraphPtr &compute_graph);
  29. static Status AssignVarAttr2Nodes(ge::ComputeGraphPtr &compute_graph);
  30. static Status AssignMemory2HasRefAttrNode(ge::ComputeGraphPtr &compute_graph);
  31. static Status AssignData2Fp32Var(const ge::NodePtr &node, uint64_t session_id);
  32. private:
  33. static Status AssignMemory2VariableNode(ge::ComputeGraphPtr &compute_graph);
  34. static Status SetOutVariableAttr(const ge::NodePtr &node, const ge::NodePtr &var_node, int index,
  35. uint64_t session_id);
  36. static Status DealExportVariableNode(const ge::NodePtr &node, const ge::NodePtr &var_node, uint64_t session_id);
  37. static Status DealVariableNode(uint32_t graph_id, const ge::NodePtr &node, uint64_t session_id);
  38. static Status DealBroadCastNode(uint32_t graph_id, const ge::NodePtr &node, const ge::InDataAnchorPtr &in_data_anchor,
  39. const ge::NodePtr &var_node, uint64_t session_id);
  40. static ge::NodePtr GetFinalTransNode(const ge::NodePtr &ref_node);
  41. static Status DealTransNode(const ge::NodePtr &final_trans_node);
  42. static Status DealExportTransNode(const ge::NodePtr &node, const ge::NodePtr &final_trans_node);
  43. static Status AssignData2VarRef(const ge::NodePtr &variable_ref, const std::string &src_var_name, uint64_t session_id,
  44. uint32_t out_index, GraphToNodeMap &graph_to_node);
  45. static Status SetOutTransNodeToAssign(const ge::NodePtr &node, const ge::NodePtr &final_trans_node, size_t index);
  46. };
  47. } // namespace ge
  48. #endif // GE_GRAPH_BUILD_MEMORY_VAR_MEM_ASSIGN_UTIL_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