69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// Copyright 2010-2025 Google LLC
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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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#ifndef ORTOOLS_SAT_CP_MODEL_SOLVER_LOGGING_H_
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#define ORTOOLS_SAT_CP_MODEL_SOLVER_LOGGING_H_
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#include <string>
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#include "absl/container/btree_map.h"
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#include "ortools/base/timer.h"
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#include "ortools/sat/model.h"
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#include "ortools/sat/synchronization.h"
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#include "ortools/util/logging.h"
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namespace operations_research {
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namespace sat {
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// This class implements the standard logging of the solver progress to the
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// SolverLogger object in the model, typically enabled by setting
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// SatParameters.log_search_progress to true.
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class SolverProgressLogger {
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public:
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explicit SolverProgressLogger(Model* model)
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: wall_timer_(*model->GetOrCreate<WallTimer>()),
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logger_(model->GetOrCreate<SolverLogger>()) {
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bounds_logging_id_ = logger_->GetNewThrottledId();
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}
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void UpdateProgress(const SolverStatusChangeInfo& info);
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void SetIsOptimization(bool is_optimization) {
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is_optimization_ = is_optimization;
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}
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void DisplayImprovementStatistics(SolverLogger* logger) const;
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private:
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void RegisterSolutionFound(const std::string& improvement_info,
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int solution_number);
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void RegisterObjectiveBoundImprovement(const std::string& improvement_info);
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const WallTimer& wall_timer_;
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SolverLogger* logger_;
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bool is_optimization_ = false;
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int bounds_logging_id_;
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int num_solutions_ = 0;
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absl::btree_map<std::string, int> primal_improvements_count_;
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absl::btree_map<std::string, int> primal_improvements_min_rank_;
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absl::btree_map<std::string, int> primal_improvements_max_rank_;
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absl::btree_map<std::string, int> dual_improvements_count_;
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};
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} // namespace sat
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} // namespace operations_research
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#endif // ORTOOLS_SAT_CP_MODEL_SOLVER_LOGGING_H_
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