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59 lines
2.2 KiB
59 lines
2.2 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include "glog/logging.h"
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#include "paddle/framework/feed_fetch_type.h"
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#include "paddle/framework/scope.h"
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#include "paddle/framework/variable.h"
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namespace paddle {
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namespace framework {
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void SetFeedVariable(Scope* scope, const LoDTensor& input,
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const std::string& var_name, size_t index) {
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// If var_name Variable is not found in GlobalScope, a new variable will
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// be created.
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VLOG(3) << "SetFeedVariable name=" << var_name << " index=" << index;
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Variable* g_feed_value = scope->Var(var_name);
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auto& feed_inputs =
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*(g_feed_value->GetMutable<std::vector<paddle::framework::LoDTensor>>());
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if (index >= feed_inputs.size()) {
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feed_inputs.resize(index + 1);
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}
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// shared data with input tensor
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feed_inputs[index].ShareDataWith(input);
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// set lod
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feed_inputs[index].set_lod(input.lod());
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}
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LoDTensor& GetFetchVariable(const Scope& scope, const std::string& var_name,
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size_t index) {
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// Since we want to fetch LodTensor from a variable, the variable must
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// be created alreadly.
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Variable* g_fetch_value = scope.FindVar(var_name);
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PADDLE_ENFORCE(g_fetch_value->IsType<FeedFetchList>(),
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"Only %s can be invoked by GetFetchVariable",
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typeid(FeedFetchList).name());
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auto& fetch_outputs = *g_fetch_value->GetMutable<FeedFetchList>();
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auto& tensor = fetch_outputs[index];
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VLOG(3) << "Fetch " << var_name << " with index " << index
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<< " shape= " << tensor.dims();
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PADDLE_ENFORCE_LT(index, fetch_outputs.size());
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return tensor;
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}
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} // namespace framework
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} // namespace paddle
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