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

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2.8 KiB

// Copyright (c) 2019 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 <algorithm>
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
#include "paddle/fluid/framework/details/build_strategy.h"
#include "paddle/fluid/framework/details/fuse_optimizer_op_pass.h"
#include "paddle/fluid/framework/details/multi_devices_helper.h"
#include "paddle/fluid/framework/ir/graph.h"
#include "paddle/fluid/framework/ir/graph_helper.h"
#include "paddle/fluid/framework/op_registry.h"
namespace paddle {
namespace framework {
namespace details {
class FuseSgdOpPass : public FuseOptimizerOpPass {
private:
virtual const std::string GetOpType() const { return "sgd"; }
virtual const std::vector<std::string> GetAuxiliaryVarNames() const {
return {};
}
// Fuse Sgd Ops
virtual void FuseOptimizerOps(
const std::unordered_map<std::string, std::vector<std::string>> &vars_set,
const std::unordered_map<std::string, std::string> &fused_vars_name,
const std::vector<ir::Node *> &sgd_ops, ir::Graph *graph) const {
PADDLE_ENFORCE_GT(sgd_ops.size(), static_cast<size_t>(0));
// NOTE: fused_var is only exist in scope, so the graph doesn't have
// fused_var node.
int op_role = boost::get<int>(
sgd_ops[0]->Op()->GetAttr(OpProtoAndCheckerMaker::OpRoleAttrName()));
VLOG(7) << "Insert sgd to graph ";
// Add fused scale
OpDesc Sgd_desc(sgd_ops[0]->Op()->Block());
Sgd_desc.SetType("sgd");
Sgd_desc.SetInput(kParam, {fused_vars_name.at(kParam)});
Sgd_desc.SetInput(kGrad, {fused_vars_name.at(kGrad)});
Sgd_desc.SetOutput("ParamOut", {fused_vars_name.at(kParam)});
// TODO(zcd): The LearningRate should be equal.
Sgd_desc.SetInput(kLearningRate, sgd_ops[0]->Op()->Input(kLearningRate));
// NOTE: multi_devices_pass requires that every op should have a role.
Sgd_desc.SetAttr(OpProtoAndCheckerMaker::OpRoleAttrName(), op_role);
auto sgd_node = graph->CreateOpNode(&Sgd_desc);
InserInputAndOutputForOptOps(sgd_ops, sgd_node);
}
};
} // namespace details
} // namespace framework
} // namespace paddle
REGISTER_PASS(fuse_sgd_op_pass, paddle::framework::details::FuseSgdOpPass)
.RequirePassAttr(paddle::framework::details::kPlaces)
.RequirePassAttr(paddle::framework::details::kLocalScopes);