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Paddle/paddle/fluid/framework/details/ssa_graph_printer.cc

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2.6 KiB

// Copyright (c) 2018 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/framework/details/ssa_graph_printer.h"
#include <string>
#include "paddle/fluid/framework/details/ssa_graph.h"
namespace paddle {
namespace framework {
namespace details {
template <typename Callback>
static inline void IterAllVar(const SSAGraph &graph, Callback callback) {
for (auto &each : graph.vars_) {
for (auto &pair1 : each) {
for (auto &pair2 : pair1.second) {
callback(*pair2);
}
}
}
for (auto &var : graph.dep_vars_) {
callback(*var);
}
}
void GraphvizSSAGraphPrinter::Print(const SSAGraph &graph,
std::ostream &sout) const {
size_t var_id = 0;
std::unordered_map<const VarHandleBase *, size_t> vars;
sout << "digraph G {\n";
IterAllVar(graph, [&](const VarHandleBase &var) {
auto *var_ptr = &var;
auto *var_handle_ptr = dynamic_cast<const VarHandle *>(var_ptr);
auto *dummy_ptr = dynamic_cast<const DummyVarHandle *>(var_ptr);
size_t cur_var_id = var_id++;
vars[var_ptr] = cur_var_id;
if (var_handle_ptr) {
sout << "var_" << cur_var_id << " [label=\"" << var_handle_ptr->name_
<< "\\n"
<< var_handle_ptr->place_ << "\\n"
<< var_handle_ptr->version_ << "\"]" << std::endl;
} else if (dummy_ptr) {
sout << "var_" << cur_var_id << " [label=\"dummy\"]" << std::endl;
}
});
size_t op_id = 0;
for (auto &op : graph.ops_) {
std::string op_name = "op_" + std::to_string(op_id++);
sout << op_name << " [label=\"" << op->Name() << "\", shape=rect]"
<< std::endl;
for (auto in : op->Inputs()) {
std::string var_name = "var_" + std::to_string(vars[in]);
sout << var_name << " -> " << op_name << std::endl;
}
for (auto out : op->Outputs()) {
std::string var_name = "var_" + std::to_string(vars[out]);
sout << op_name << " -> " << var_name << std::endl;
}
}
sout << "}\n";
}
} // namespace details
} // namespace framework
} // namespace paddle