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66 lines
2.3 KiB
66 lines
2.3 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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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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#include "paddle/fluid/framework/ir/graph.h"
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#include "paddle/fluid/framework/program_desc.h"
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#include "paddle/fluid/framework/var_desc.h"
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namespace paddle {
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namespace framework {
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// NOTE(paddle-dev): This graph contains circle.
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Graph::Graph(const ProgramDesc &program) : program_(program) {
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std::unordered_map<std::string, VarDesc *> all_vars;
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for (auto *var : program.Block(0).AllVars()) {
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all_vars.emplace(var->Name(), var);
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}
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std::map<std::string, ir::Node *> var_nodes;
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for (auto *op : program.Block(0).AllOps()) {
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ir::Node *node = CreateOpNode(op);
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for (auto &each_var_name : op->InputArgumentNames()) {
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ir::Node *var = nullptr;
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if (var_nodes.find(each_var_name) != var_nodes.end()) {
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var = var_nodes.at(each_var_name);
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} else if (all_vars.count(each_var_name) != 0) {
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var = CreateVarNode(all_vars.at(each_var_name));
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var_nodes[each_var_name] = var;
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} else {
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// TODO(paddle-dev): Seems some assumption doesn't hold?
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LOG(ERROR) << op->Type()
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<< " input var not in all_var list: " << each_var_name;
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var = CreateEmptyNode(each_var_name);
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var_nodes[each_var_name] = var;
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}
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node->inputs.push_back(var);
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var->outputs.push_back(node);
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}
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for (auto &each_var_name : op->OutputArgumentNames()) {
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ir::Node *var = nullptr;
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if (var_nodes.find(each_var_name) != var_nodes.end()) {
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var = var_nodes.at(each_var_name);
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} else {
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var = CreateVarNode(all_vars.at(each_var_name));
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var_nodes[each_var_name] = var;
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}
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node->outputs.push_back(var);
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var->inputs.push_back(node);
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}
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}
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}
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} // namespace framework
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} // namespace paddle
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