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memory_api.cc 1.6 kB

5 years ago
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  1. /**
  2. * Copyright 2019-2020 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 "framework/memory/memory_api.h"
  17. #include <memory>
  18. #include "graph/manager/graph_mem_allocator.h"
  19. #include "graph/manager/host_mem_manager.h"
  20. #include "graph/manager/rdma_pool_allocator.h"
  21. #include "hccl/base.h"
  22. #include "hccl/hcom.h"
  23. namespace ge {
  24. Status InitRdmaPool(size_t size, rtMemType_t mem_type) {
  25. GELOGD("InitRdmaPool in");
  26. return MemManager::Instance().RdmaPoolInstance(mem_type).InitMemory(size);
  27. }
  28. Status RdmaRemoteRegister(const std::vector<HostVarInfo> &var_info, rtMemType_t mem_type) {
  29. GELOGD("Start to register rdma memory with host var size %zu", var_info.size());
  30. uint64_t device_base = 0;
  31. uint64_t device_size = 0;
  32. GE_CHK_STATUS_RET(MemManager::Instance().RdmaPoolInstance(mem_type).GetBaseAddr(device_base, device_size));
  33. return SUCCESS;
  34. }
  35. Status GetVarBaseAddrAndSize(const string &var_name, uint64_t &base_addr, uint64_t &var_size) {
  36. GELOGD("GetVarBaseAddrAndSize in");
  37. return HostMemManager::Instance().QueryVarMemInfo(var_name, base_addr, var_size);
  38. }
  39. } // namespace ge

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