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shape_n_kernel.cc 2.3 kB

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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 "host_kernels/shape_n_kernel.h"
  17. #include <memory>
  18. #include "framework/common/debug/ge_log.h"
  19. #include "framework/common/ge_inner_error_codes.h"
  20. #include "host_kernels/kernel_utils.h"
  21. #include "graph/passes/pass_utils.h"
  22. #include "inc/kernel_factory.h"
  23. namespace ge {
  24. Status ShapeNKernel::Compute(const NodePtr &node, std::vector<GeTensorPtr> &v_output) {
  25. GELOGD("ShapeN kernel in");
  26. if (node == nullptr) {
  27. GELOGE(FAILED, "parameter is null.");
  28. return FAILED;
  29. }
  30. OpDescPtr op_desc = node->GetOpDesc();
  31. GE_CHECK_NOTNULL(op_desc);
  32. if (op_desc->GetAllInputsDesc().size() != op_desc->GetAllOutputsDesc().size()) {
  33. GELOGW("ShapeN kernel, input and output are not the same size. Input size:%zu, output size:%zu",
  34. op_desc->GetAllInputsDesc().size(), op_desc->GetAllOutputsDesc().size());
  35. return NOT_CHANGED;
  36. }
  37. for (size_t i = 0; i < op_desc->GetAllInputsDesc().size(); i++) {
  38. const auto &input_desc = op_desc->MutableInputDesc(static_cast<uint32_t>(i));
  39. GE_CHECK_NOTNULL(input_desc);
  40. if (KernelUtils::IsUnknownShape(input_desc->GetShape())) {
  41. GELOGW("Input %zu shape is unknown, ignore shape_n kernel.", i);
  42. return NOT_CHANGED;
  43. }
  44. vector<int64_t> dims = input_desc->GetShape().GetDims();
  45. Status ret =
  46. PassUtils::ConstructTensorDescWithData(op_desc->GetOutputDesc(static_cast<uint32_t>(i)), dims, v_output);
  47. if (ret != SUCCESS) {
  48. GELOGE(PARAM_INVALID, "ShapeN kernel construct tensor desc failed, i:%zu", i);
  49. return ret;
  50. }
  51. }
  52. GELOGD("ShapeN kernel success");
  53. return SUCCESS;
  54. }
  55. REGISTER_KERNEL(SHAPEN, ShapeNKernel);
  56. } // 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