Ejemplo n.º 1
0
    void
    BlackoilOutputWriter::
    writeTimeStepSerial(const SimulatorTimerInterface& timer,
                        const SimulationDataContainer& state,
                        const WellState& wellState,
                        const data::Solution& simProps,
                        bool substep)
    {
        // Matlab output
        if( matlabWriter_ ) {
            matlabWriter_->writeTimeStep( timer, state, wellState, substep );
        }

        // ECL output
        if ( eclWriter_ )
        {
            const auto& initConfig = eclipseState_.getInitConfig();
            if (initConfig.restartRequested() && ((initConfig.getRestartStep()) == (timer.currentStepNum()))) {
                std::cout << "Skipping restart write in start of step " << timer.currentStepNum() << std::endl;
            } else {
                data::Solution combined_sol = simToSolution(state, phaseUsage_); // Get "normal" data (SWAT, PRESSURE, ...)
                combined_sol.insert(simProps.begin(), simProps.end());           // ... insert "extra" data (KR, VISC, ...)
                eclWriter_->writeTimeStep(timer.reportStepNum(),
                                          substep,
                                          timer.simulationTimeElapsed(),
                                          combined_sol,
                                          wellState.report(phaseUsage_));
            }
        }

        // write backup file
        if( backupfile_.is_open() )
        {
            int reportStep      = timer.reportStepNum();
            int currentTimeStep = timer.currentStepNum();
            if( (reportStep == currentTimeStep || // true for SimulatorTimer
                 currentTimeStep == 0 || // true for AdaptiveSimulatorTimer at reportStep
                 timer.done() ) // true for AdaptiveSimulatorTimer at reportStep
               && lastBackupReportStep_ != reportStep ) // only backup report step once
            {
                // store report step
                lastBackupReportStep_ = reportStep;
                // write resport step number
                backupfile_.write( (const char *) &reportStep, sizeof(int) );

                try {
                    backupfile_ << state;

                    const WellStateFullyImplicitBlackoil& boWellState = static_cast< const WellStateFullyImplicitBlackoil& > (wellState);
                    backupfile_ << boWellState;
                }
                catch ( const std::bad_cast& e )
                {
                }

                backupfile_ << std::flush;
            }
        } // end backup
    }
Ejemplo n.º 2
0
    void EclipseWriteRFTHandler::writeTimeStep(const std::string& filename,
                                               const ert_ecl_unit_enum ecl_unit,
                                               const SimulatorTimerInterface& simulatorTimer,
                                               std::vector<WellConstPtr>& wells,
                                               EclipseGridConstPtr eclipseGrid,
                                               std::vector<double>& pressure,
                                               std::vector<double>& swat,
                                               std::vector<double>& sgas) {



        std::vector<ecl_rft_node_type *> rft_nodes;
        for (std::vector<WellConstPtr>::const_iterator ci = wells.begin(); ci != wells.end(); ++ci) {
            WellConstPtr well = *ci;
            if ((well->getRFTActive(simulatorTimer.currentStepNum())) || (well->getPLTActive(simulatorTimer.currentStepNum()))) {
                ecl_rft_node_type * ecl_node = createEclRFTNode(well,
                                                                 simulatorTimer,
                                                                 eclipseGrid,
                                                                 pressure,
                                                                 swat,
                                                                 sgas);

                if (well->getPLTActive(simulatorTimer.currentStepNum())) {
                    std::cerr << "PLT not supported, writing RFT data" << std::endl;
                }

                rft_nodes.push_back(ecl_node);
            }
        }


        if (rft_nodes.size() > 0) {
            ecl_rft_file_update(filename.c_str(), rft_nodes.data(), rft_nodes.size(), ecl_unit);
        }

        //Cleanup: The ecl_rft_file_update method takes care of freeing the ecl_rft_nodes that it receives.
        //         Each ecl_rft_node is again responsible for freeing it's cells.
    }
Ejemplo n.º 3
0
        SimulatorReport nonlinearIteration(const int iteration,
                                           const SimulatorTimerInterface& timer,
                                           NonlinearSolverType& nonlinear_solver)
        {
            SimulatorReport report;
            failureReport_ = SimulatorReport();
            Dune::Timer perfTimer;

            perfTimer.start();
            if (iteration == 0) {
                // For each iteration we store in a vector the norms of the residual of
                // the mass balance for each active phase, the well flux and the well equations.
                residual_norms_history_.clear();
                current_relaxation_ = 1.0;
                dx_old_ = 0.0;
                convergence_reports_.push_back({timer.reportStepNum(), timer.currentStepNum(), {}});
                convergence_reports_.back().report.reserve(11);
            }

            report.total_linearizations = 1;

            try {
                report += assembleReservoir(timer, iteration);
                report.assemble_time += perfTimer.stop();
            }
            catch (...) {
                report.assemble_time += perfTimer.stop();
                failureReport_ += report;
                // todo (?): make the report an attribute of the class
                throw; // continue throwing the stick
            }

            std::vector<double> residual_norms;
            perfTimer.reset();
            perfTimer.start();
            // the step is not considered converged until at least minIter iterations is done
            {
                auto convrep = getConvergence(timer, iteration,residual_norms);
                report.converged = convrep.converged()  && iteration > nonlinear_solver.minIter();;
                ConvergenceReport::Severity severity = convrep.severityOfWorstFailure();
                convergence_reports_.back().report.push_back(std::move(convrep));

                // Throw if any NaN or too large residual found.
                if (severity == ConvergenceReport::Severity::NotANumber) {
                    OPM_THROW(Opm::NumericalIssue, "NaN residual found!");
                } else if (severity == ConvergenceReport::Severity::TooLarge) {
                    OPM_THROW(Opm::NumericalIssue, "Too large residual found!");
                }
            }

             // checking whether the group targets are converged
             if (wellModel().wellCollection().groupControlActive()) {
                  report.converged = report.converged && wellModel().wellCollection().groupTargetConverged(wellModel().wellState().wellRates());
             }

            report.update_time += perfTimer.stop();
            residual_norms_history_.push_back(residual_norms);
            if (!report.converged) {
                perfTimer.reset();
                perfTimer.start();
                report.total_newton_iterations = 1;

                // enable single precision for solvers when dt is smaller then 20 days
                //residual_.singlePrecision = (unit::convert::to(dt, unit::day) < 20.) ;

                // Compute the nonlinear update.
                const int nc = UgGridHelpers::numCells(grid_);
                BVector x(nc);

                // apply the Schur compliment of the well model to the reservoir linearized
                // equations
                wellModel().linearize(ebosSimulator().model().linearizer().jacobian(),
                                      ebosSimulator().model().linearizer().residual());

                // Solve the linear system.
                linear_solve_setup_time_ = 0.0;
                try {
                    solveJacobianSystem(x);
                    report.linear_solve_setup_time += linear_solve_setup_time_;
                    report.linear_solve_time += perfTimer.stop();
                    report.total_linear_iterations += linearIterationsLastSolve();
                }
                catch (...) {
                    report.linear_solve_setup_time += linear_solve_setup_time_;
                    report.linear_solve_time += perfTimer.stop();
                    report.total_linear_iterations += linearIterationsLastSolve();

                    failureReport_ += report;
                    throw; // re-throw up
                }

                perfTimer.reset();
                perfTimer.start();

                // handling well state update before oscillation treatment is a decision based
                // on observation to avoid some big performance degeneration under some circumstances.
                // there is no theorectical explanation which way is better for sure.
                wellModel().postSolve(x);

                if (param_.use_update_stabilization_) {
                    // Stabilize the nonlinear update.
                    bool isOscillate = false;
                    bool isStagnate = false;
                    nonlinear_solver.detectOscillations(residual_norms_history_, iteration, isOscillate, isStagnate);
                    if (isOscillate) {
                        current_relaxation_ -= nonlinear_solver.relaxIncrement();
                        current_relaxation_ = std::max(current_relaxation_, nonlinear_solver.relaxMax());
                        if (terminalOutputEnabled()) {
                            std::string msg = "    Oscillating behavior detected: Relaxation set to "
                                    + std::to_string(current_relaxation_);
                            OpmLog::info(msg);
                        }
                    }
                    nonlinear_solver.stabilizeNonlinearUpdate(x, dx_old_, current_relaxation_);
                }

                // Apply the update, with considering model-dependent limitations and
                // chopping of the update.
                updateSolution(x);

                report.update_time += perfTimer.stop();
            }

            return report;
        }