// Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #include "paddle/fluid/eager/api/utils/tensor_utils.h" #include "paddle/fluid/eager/accumulation/accumulation_node.h" #include "paddle/fluid/eager/api/utils/global_utils.h" #include "paddle/fluid/eager/autograd_meta.h" #include "paddle/fluid/eager/grad_node_info.h" #include "paddle/fluid/eager/utils.h" #include "paddle/phi/api/all.h" #include "paddle/fluid/framework/data_layout.h" #include "paddle/fluid/framework/phi_utils.h" #include "paddle/fluid/framework/variable.h" namespace egr { namespace egr_utils_api { bool IsLeafTensor(const paddle::experimental::Tensor& target) { std::shared_ptr grad_node = EagerUtils::grad_node(target); if (!grad_node || std::dynamic_pointer_cast(grad_node)) { return true; } return false; } paddle::experimental::Tensor CreateTensorWithValue( const phi::DDim& ddim, const paddle::platform::Place& place, const phi::DataType& dtype, const phi::DataLayout& layout, float value, bool is_leaf) { paddle::experimental::Tensor out = paddle::experimental::full( phi::vectorize(ddim), paddle::experimental::Scalar(value), dtype, phi::TransToPhiBackend(place)); auto meta = EagerUtils::autograd_meta(&out); if (is_leaf) { auto accumulation_node = std::make_shared(meta); meta->SetGradNode(accumulation_node); meta->SetStopGradient(false); } return out; } } // namespace egr_utils_api } // namespace egr