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70 lines
2.1 KiB
70 lines
2.1 KiB
// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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/details/op_graph_view.h"
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#include <queue>
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#include <utility>
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namespace paddle {
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namespace framework {
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namespace details {
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OpGraphView::OpGraphView(const std::vector<OpHandleBase *> &ops) { Build(ops); }
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void OpGraphView::Build(const std::vector<OpHandleBase *> &ops) {
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preceding_ops_.clear();
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pending_ops_.clear();
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for (auto &op : ops) {
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preceding_ops_[op];
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pending_ops_[op];
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for (auto &var : op->Outputs()) {
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for (auto &pending_op : var->PendingOps()) {
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preceding_ops_[pending_op].insert(op);
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pending_ops_[op].insert(pending_op);
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}
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}
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}
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PADDLE_ENFORCE(
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preceding_ops_.size() == ops.size() && pending_ops_.size() == ops.size(),
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"There are duplicate ops in graph.");
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}
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std::unordered_set<OpHandleBase *> OpGraphView::AllOps() const {
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std::unordered_set<OpHandleBase *> ret;
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ret.reserve(preceding_ops_.size());
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for (auto &pair : preceding_ops_) {
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ret.insert(pair.first);
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}
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return ret;
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}
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bool OpGraphView::HasOp(OpHandleBase *op) const {
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return preceding_ops_.count(op) != 0;
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}
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void OpGraphView::EnforceHasOp(OpHandleBase *op) const {
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PADDLE_ENFORCE(HasOp(op), "Cannot find op %s in OpGraphView",
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op == nullptr ? "nullptr" : op->DebugString());
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}
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const std::unordered_set<OpHandleBase *> &OpGraphView::PendingOps(
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OpHandleBase *op) const {
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EnforceHasOp(op);
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return pending_ops_.at(op);
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}
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} // namespace details
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} // namespace framework
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} // namespace paddle
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