Пример #1
0
// ----------------- Main program -----------------
int
main(int argc, char** argv)
try
{
    using namespace Opm;
    if (argc <= 1) {
        usage();
        exit(1);
    } 
    const char* eclipseFilename = argv[1];
    EclipseStateConstPtr eclState; 
    ParserPtr parser(new Opm::Parser);
    Opm::ParseContext parseContext({{ ParseContext::PARSE_RANDOM_SLASH , InputError::IGNORE }, 
                              { ParseContext::PARSE_UNKNOWN_KEYWORD, InputError::IGNORE},
                              { ParseContext::PARSE_RANDOM_TEXT, InputError::IGNORE},
                              { ParseContext::UNSUPPORTED_SCHEDULE_GEO_MODIFIER, InputError::IGNORE},
                              { ParseContext::UNSUPPORTED_COMPORD_TYPE, InputError::IGNORE},
                              { ParseContext::UNSUPPORTED_INITIAL_THPRES, InputError::IGNORE},
                              { ParseContext::INTERNAL_ERROR_UNINITIALIZED_THPRES, InputError::IGNORE}
                             });
    Opm::DeckConstPtr deck(parser->parseFile(eclipseFilename, parseContext));
    eclState.reset(new EclipseState(deck, parseContext));

    GridManager gm(deck);
    const UnstructuredGrid& grid = *gm.c_grid();
    using boost::filesystem::path; 
    path fpath(eclipseFilename);
    std::string baseName;
    if (boost::to_upper_copy(path(fpath.extension()).string())== ".DATA") {
        baseName = path(fpath.stem()).string();
    } else {
        baseName = path(fpath.filename()).string();
    }

    std::string logFile = baseName + ".SATFUNCLOG";
    Opm::time::StopWatch timer;
    timer.start();
    RelpermDiagnostics diagnostic(logFile);
    diagnostic.diagnosis(eclState, deck, grid);
    timer.stop();
    double tt = timer.secsSinceStart();
    std::cout << "relperm diagnostics: " << tt << " seconds." << std::endl;
}
catch (const std::exception &e) {
    std::cerr << "Program threw an exception: " << e.what() << "\n";
    throw;
}
// ----------------- Main program -----------------
int
main(int argc, char** argv)
try
{
    using namespace Opm;

    std::cout << "\n================    Test program for weakly compressible two-phase flow with polymer    ===============\n\n";
    parameter::ParameterGroup param(argc, argv, false);
    std::cout << "---------------    Reading parameters     ---------------" << std::endl;

    // If we have a "deck_filename", grid and props will be read from that.
    bool use_deck = param.has("deck_filename");
    boost::scoped_ptr<GridManager> grid;
    boost::scoped_ptr<BlackoilPropertiesInterface> props;
    boost::scoped_ptr<RockCompressibility> rock_comp;
    Opm::DeckConstPtr deck;
    EclipseStateConstPtr eclipseState;
    std::unique_ptr<PolymerBlackoilState> state;
    Opm::PolymerProperties poly_props;
    // bool check_well_controls = false;
    // int max_well_control_iterations = 0;
    double gravity[3] = { 0.0 };
    if (use_deck) {
        std::string deck_filename = param.get<std::string>("deck_filename");
        ParserPtr parser(new Opm::Parser());
        Opm::ParseContext parseContext({{ ParseContext::PARSE_RANDOM_SLASH , InputError::IGNORE }});
        deck = parser->parseFile(deck_filename , parseContext);
        eclipseState.reset(new Opm::EclipseState(deck , parseContext));

        // Grid init
        grid.reset(new GridManager(deck));
        {
            const UnstructuredGrid& ug_grid = *(grid->c_grid());

            // Rock and fluid init
            props.reset(new BlackoilPropertiesFromDeck(deck, eclipseState, ug_grid));
            // check_well_controls = param.getDefault("check_well_controls", false);
            // max_well_control_iterations = param.getDefault("max_well_control_iterations", 10);

            state.reset( new PolymerBlackoilState(  UgGridHelpers::numCells( ug_grid ) , UgGridHelpers::numFaces( ug_grid ), 2));
            // Rock compressibility.
            rock_comp.reset(new RockCompressibility(deck, eclipseState));
            // Gravity.
            gravity[2] = deck->hasKeyword("NOGRAV") ? 0.0 : unit::gravity;
            // Init state variables (saturation and pressure).
            if (param.has("init_saturation")) {
                initStateBasic(ug_grid, *props, param, gravity[2], *state);
            } else {
                initStateFromDeck(ug_grid, *props, deck, gravity[2], *state);
            }
            initBlackoilSurfvol(ug_grid, *props, *state);
            // Init polymer properties.
            poly_props.readFromDeck(deck, eclipseState);
        }
    } else {
        // Grid init.
        const int nx = param.getDefault("nx", 100);
        const int ny = param.getDefault("ny", 100);
        const int nz = param.getDefault("nz", 1);
        const double dx = param.getDefault("dx", 1.0);
        const double dy = param.getDefault("dy", 1.0);
        const double dz = param.getDefault("dz", 1.0);
        grid.reset(new GridManager(nx, ny, nz, dx, dy, dz));
        {
            const UnstructuredGrid& ug_grid = *(grid->c_grid());

            // Rock and fluid init.
            props.reset(new BlackoilPropertiesBasic(param, ug_grid.dimensions, UgGridHelpers::numCells( ug_grid )));
            state.reset( new PolymerBlackoilState(  UgGridHelpers::numCells( ug_grid ) , UgGridHelpers::numFaces( ug_grid ) , 2));
            // Rock compressibility.
            rock_comp.reset(new RockCompressibility(param));
            // Gravity.
            gravity[2] = param.getDefault("gravity", 0.0);
            // Init state variables (saturation and pressure).
            initStateBasic(ug_grid, *props, param, gravity[2], *state);
            initBlackoilSurfvol(ug_grid, *props, *state);
            // Init Polymer state

            if (param.has("poly_init")) {
                double poly_init = param.getDefault("poly_init", 0.0);
                for (int cell = 0; cell < UgGridHelpers::numCells( ug_grid ); ++cell) {
                    double smin[2], smax[2];

                    auto& saturation = state->saturation();
                    auto& concentration = state->getCellData( state->CONCENTRATION );
                    auto& max_concentration = state->getCellData( state->CMAX );

                    props->satRange(1, &cell, smin, smax);
                    if (saturation[2*cell] > 0.5*(smin[0] + smax[0])) {
                        concentration[cell] = poly_init;
                        max_concentration[cell] = poly_init;
                    } else {
                        saturation[2*cell + 0] = 0.;
                        saturation[2*cell + 1] = 1.;
                        concentration[cell] = 0.;
                        max_concentration[cell] = 0.;
                    }
                }
            }

        }
        // Init polymer properties.
        // Setting defaults to provide a simple example case.
        double c_max = param.getDefault("c_max_limit", 5.0);
        double mix_param = param.getDefault("mix_param", 1.0);
        double rock_density = param.getDefault("rock_density", 1000.0);
        double dead_pore_vol = param.getDefault("dead_pore_vol", 0.15);
        double res_factor = param.getDefault("res_factor", 1.) ; // res_factor = 1 gives no change in permeability
        double c_max_ads = param.getDefault("c_max_ads", 1.);
        int ads_index = param.getDefault<int>("ads_index", Opm::PolymerProperties::NoDesorption);
        std::vector<double> c_vals_visc(2, -1e100);
        c_vals_visc[0] = 0.0;
        c_vals_visc[1] = 7.0;
        std::vector<double> visc_mult_vals(2, -1e100);
        visc_mult_vals[0] = 1.0;
        // poly_props.visc_mult_vals[1] = param.getDefault("c_max_viscmult", 30.0);
        visc_mult_vals[1] = 20.0;
        std::vector<double> c_vals_ads(3, -1e100);
        c_vals_ads[0] = 0.0;
        c_vals_ads[1] = 2.0;
        c_vals_ads[2] = 8.0;
        std::vector<double> ads_vals(3, -1e100);
        ads_vals[0] = 0.0;
        ads_vals[1] = 0.0015;
        ads_vals[2] = 0.0025;
        // ads_vals[1] = 0.0;
        // ads_vals[2] = 0.0;
        std::vector<double> water_vel_vals(2, -1e100);
        water_vel_vals[0] = 0.0;
        water_vel_vals[1] = 10.0;
        std::vector<double> shear_vrf_vals(2, -1e100);
        shear_vrf_vals[0] = 1.0;
        shear_vrf_vals[1] = 1.0;
        poly_props.set(c_max, mix_param, rock_density, dead_pore_vol, res_factor, c_max_ads,
                       static_cast<Opm::PolymerProperties::AdsorptionBehaviour>(ads_index),
                       c_vals_visc,  visc_mult_vals, c_vals_ads, ads_vals, water_vel_vals, shear_vrf_vals);
    }

    bool use_gravity = (gravity[0] != 0.0 || gravity[1] != 0.0 || gravity[2] != 0.0);
    const double *grav = use_gravity ? &gravity[0] : 0;

    // Linear solver.
    LinearSolverFactory linsolver(param);

    // Write parameters used for later reference.
    bool output = param.getDefault("output", true);
    if (output) {
      std::string output_dir =
        param.getDefault("output_dir", std::string("output"));
      boost::filesystem::path fpath(output_dir);
      try {
        create_directories(fpath);
      }
      catch (...) {
        OPM_THROW(std::runtime_error, "Creating directories failed: " << fpath);
      }
      param.writeParam(output_dir + "/simulation.param");
    }


    std::cout << "\n\n================    Starting main simulation loop     ===============\n"
              << std::flush;

    SimulatorReport rep;
    if (!use_deck) {
        // Simple simulation without a deck.
        PolymerInflowBasic polymer_inflow(param.getDefault("poly_start_days", 300.0)*Opm::unit::day,
                                          param.getDefault("poly_end_days", 800.0)*Opm::unit::day,
                                          param.getDefault("poly_amount", poly_props.cMax()));
        WellsManager wells;
        SimulatorCompressiblePolymer simulator(param,
                                               *grid->c_grid(),
                                               *props,
                                               poly_props,
                                               rock_comp->isActive() ? rock_comp.get() : 0,
                                               wells,
                                               polymer_inflow,
                                               linsolver,
                                               grav);
        SimulatorTimer simtimer;
        simtimer.init(param);
        warnIfUnusedParams(param);
        WellState well_state;
        well_state.init(0, *state);
        rep = simulator.run(simtimer, *state, well_state);
    } else {
        // With a deck, we may have more epochs etc.
        WellState well_state;
        int step = 0;
        Opm::TimeMapPtr timeMap(new Opm::TimeMap(deck));
        SimulatorTimer simtimer;
        simtimer.init(timeMap);
        // Check for WPOLYMER presence in last report step to decide
        // polymer injection control type.
        const bool use_wpolymer = deck->hasKeyword("WPOLYMER");
        if (use_wpolymer) {
            if (param.has("poly_start_days")) {
                OPM_MESSAGE("Warning: Using WPOLYMER to control injection since it was found in deck. "
                        "You seem to be trying to control it via parameter poly_start_days (etc.) as well.");
            }
        }
        for (size_t reportStepIdx = 0; reportStepIdx < timeMap->numTimesteps(); ++reportStepIdx) {
            simtimer.setCurrentStepNum(reportStepIdx);

            // Report on start of report step.
            std::cout << "\n\n--------------    Starting report step " << reportStepIdx << "    --------------"
                      << "\n                  (number of remaining steps: "
                      << simtimer.numSteps() - step << ")\n\n" << std::flush;

            // Create new wells, polymer inflow controls.
            WellsManager wells(eclipseState , reportStepIdx , *grid->c_grid(), props->permeability());
            boost::scoped_ptr<PolymerInflowInterface> polymer_inflow;
            if (use_wpolymer) {
                if (wells.c_wells() == 0) {
                    OPM_THROW(std::runtime_error, "Cannot control polymer injection via WPOLYMER without wells.");
                }
                polymer_inflow.reset(new PolymerInflowFromDeck(eclipseState, *wells.c_wells(), props->numCells(), simtimer.currentStepNum()));
            } else {
                polymer_inflow.reset(new PolymerInflowBasic(param.getDefault("poly_start_days", 300.0)*Opm::unit::day,
                                                            param.getDefault("poly_end_days", 800.0)*Opm::unit::day,
                                                            param.getDefault("poly_amount", poly_props.cMax())));
            }

            // @@@ HACK: we should really make a new well state and
            // properly transfer old well state to it every report step,
            // since number of wells may change etc.
            if (reportStepIdx == 0) {
                well_state.init(wells.c_wells(), *state);
            }

            // Create and run simulator.
            SimulatorCompressiblePolymer simulator(param,
                                                   *grid->c_grid(),
                                                   *props,
                                                   poly_props,
                                                   rock_comp->isActive() ? rock_comp.get() : 0,
                                                   wells,
                                                   *polymer_inflow,
                                                   linsolver,
                                                   grav);
            if (reportStepIdx == 0) {
                warnIfUnusedParams(param);
            }
            SimulatorReport epoch_rep = simulator.run(simtimer, *state, well_state);

            // Update total timing report and remember step number.
            rep += epoch_rep;
            step = simtimer.currentStepNum();
        }
    }

    std::cout << "\n\n================    End of simulation     ===============\n\n";
    rep.report(std::cout);
}
catch (const std::exception &e) {
    std::cerr << "Program threw an exception: " << e.what() << "\n";
    throw;
}
Пример #3
0
// ----------------- Main program -----------------
int
main(int argc, char** argv)
try
{
    using namespace Opm;

    std::cout << "\n================    Test program for weakly compressible two-phase flow     ===============\n\n";
    parameter::ParameterGroup param(argc, argv, false);
    std::cout << "---------------    Reading parameters     ---------------" << std::endl;

    // If we have a "deck_filename", grid and props will be read from that.
    bool use_deck = param.has("deck_filename");
    EclipseStateConstPtr eclipseState;
    std::unique_ptr<GridManager> grid;
    std::unique_ptr<BlackoilPropertiesInterface> props;
    std::unique_ptr<RockCompressibility> rock_comp;

    ParserPtr parser(new Opm::Parser());
    Opm::DeckConstPtr deck;

    BlackoilState state;
    // bool check_well_controls = false;
    // int max_well_control_iterations = 0;
    double gravity[3] = { 0.0 };
    if (use_deck) {
        ParseMode parseMode;
        std::string deck_filename = param.get<std::string>("deck_filename");
        deck = parser->parseFile(deck_filename , parseMode);
        eclipseState.reset(new EclipseState(deck, parseMode));

        // Grid init
        grid.reset(new GridManager(deck));
        // Rock and fluid init
        props.reset(new BlackoilPropertiesFromDeck(deck, eclipseState, *grid->c_grid(), param));
        // check_well_controls = param.getDefault("check_well_controls", false);
        // max_well_control_iterations = param.getDefault("max_well_control_iterations", 10);
        // Rock compressibility.
        rock_comp.reset(new RockCompressibility(deck, eclipseState));
        // Gravity.
        gravity[2] = deck->hasKeyword("NOGRAV") ? 0.0 : unit::gravity;
        // Init state variables (saturation and pressure).
        if (param.has("init_saturation")) {
            initStateBasic(*grid->c_grid(), *props, param, gravity[2], state);
        } else {
            initStateFromDeck(*grid->c_grid(), *props, deck, gravity[2], state);
        }
        initBlackoilSurfvol(*grid->c_grid(), *props, state);
    } else {
        // Grid init.
        const int nx = param.getDefault("nx", 100);
        const int ny = param.getDefault("ny", 100);
        const int nz = param.getDefault("nz", 1);
        const double dx = param.getDefault("dx", 1.0);
        const double dy = param.getDefault("dy", 1.0);
        const double dz = param.getDefault("dz", 1.0);
        grid.reset(new GridManager(nx, ny, nz, dx, dy, dz));
        // Rock and fluid init.
        props.reset(new BlackoilPropertiesBasic(param, grid->c_grid()->dimensions, grid->c_grid()->number_of_cells));
        // Rock compressibility.
        rock_comp.reset(new RockCompressibility(param));
        // Gravity.
        gravity[2] = param.getDefault("gravity", 0.0);
        // Init state variables (saturation and pressure).
        initStateBasic(*grid->c_grid(), *props, param, gravity[2], state);
        initBlackoilSurfvol(*grid->c_grid(), *props, state);
    }

    bool use_gravity = (gravity[0] != 0.0 || gravity[1] != 0.0 || gravity[2] != 0.0);
    const double *grav = use_gravity ? &gravity[0] : 0;

    // Initialising src
    int num_cells = grid->c_grid()->number_of_cells;
    std::vector<double> src(num_cells, 0.0);
    if (use_deck) {
        // Do nothing, wells will be the driving force, not source terms.
    } else {
        // Compute pore volumes, in order to enable specifying injection rate
        // terms of total pore volume.
        std::vector<double> porevol;
        if (rock_comp->isActive()) {
            computePorevolume(*grid->c_grid(), props->porosity(), *rock_comp, state.pressure(), porevol);
        } else {
            computePorevolume(*grid->c_grid(), props->porosity(), porevol);
        }
        const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
        const double default_injection = use_gravity ? 0.0 : 0.1;
        const double flow_per_sec = param.getDefault<double>("injected_porevolumes_per_day", default_injection)
            *tot_porevol_init/unit::day;
        src[0] = flow_per_sec;
        src[num_cells - 1] = -flow_per_sec;
    }

    // Boundary conditions.
    FlowBCManager bcs;
    if (param.getDefault("use_pside", false)) {
        int pside = param.get<int>("pside");
        double pside_pressure = param.get<double>("pside_pressure");
        bcs.pressureSide(*grid->c_grid(), FlowBCManager::Side(pside), pside_pressure);
    }

    // Linear solver.
    LinearSolverFactory linsolver(param);

    // Write parameters used for later reference.
    bool output = param.getDefault("output", true);
    std::ofstream epoch_os;
    std::string output_dir;
    if (output) {
        output_dir =
            param.getDefault("output_dir", std::string("output"));
        boost::filesystem::path fpath(output_dir);
        try {
            create_directories(fpath);
        }
        catch (...) {
            OPM_THROW(std::runtime_error, "Creating directories failed: " << fpath);
        }
        std::string filename = output_dir + "/epoch_timing.param";
        epoch_os.open(filename.c_str(), std::fstream::trunc | std::fstream::out);
        // open file to clean it. The file is appended to in SimulatorTwophase
        filename = output_dir + "/step_timing.param";
        std::fstream step_os(filename.c_str(), std::fstream::trunc | std::fstream::out);
        step_os.close();
        param.writeParam(output_dir + "/simulation.param");
    }


    std::cout << "\n\n================    Starting main simulation loop     ===============\n";

    SimulatorReport rep;
    if (!use_deck) {
        // Simple simulation without a deck.
        WellsManager wells; // no wells.
        SimulatorCompressibleTwophase simulator(param,
                                                *grid->c_grid(),
                                                *props,
                                                rock_comp->isActive() ? rock_comp.get() : 0,
                                                wells,
                                                src,
                                                bcs.c_bcs(),
                                                linsolver,
                                                grav);
        SimulatorTimer simtimer;
        simtimer.init(param);
        warnIfUnusedParams(param);
        WellState well_state;
        well_state.init(0, state);
        rep = simulator.run(simtimer, state, well_state);
    } else {
        // With a deck, we may have more epochs etc.
        WellState well_state;
        int step = 0;
        SimulatorTimer simtimer;
        // Use timer for last epoch to obtain total time.
        Opm::TimeMapPtr timeMap(new Opm::TimeMap(deck));
        simtimer.init(timeMap);
        const double total_time = simtimer.totalTime();
        for (size_t reportStepIdx = 0; reportStepIdx < timeMap->numTimesteps(); ++reportStepIdx) {
            simtimer.setCurrentStepNum(step);
            simtimer.setTotalTime(total_time);

            // Report on start of report step.
            std::cout << "\n\n--------------    Starting report step " << reportStepIdx << "    --------------"
                      << "\n                  (number of steps: "
                      << simtimer.numSteps() - step << ")\n\n" << std::flush;

            // Create new wells, well_state
            WellsManager wells(eclipseState , reportStepIdx , *grid->c_grid(), props->permeability());
            // @@@ HACK: we should really make a new well state and
            // properly transfer old well state to it every report step,
            // since number of wells may change etc.
            if (reportStepIdx == 0) {
                well_state.init(wells.c_wells(), state);
            }

            // Create and run simulator.
            SimulatorCompressibleTwophase simulator(param,
                                                    *grid->c_grid(),
                                                    *props,
                                                    rock_comp->isActive() ? rock_comp.get() : 0,
                                                    wells,
                                                    src,
                                                    bcs.c_bcs(),
                                                    linsolver,
                                                    grav);
            if (reportStepIdx == 0) {
                warnIfUnusedParams(param);
            }
            SimulatorReport epoch_rep = simulator.run(simtimer, state, well_state);
            if (output) {
                epoch_rep.reportParam(epoch_os);
            }
            // Update total timing report and remember step number.
            rep += epoch_rep;
            step = simtimer.currentStepNum();
        }
    }

    std::cout << "\n\n================    End of simulation     ===============\n\n";
    rep.report(std::cout);

    if (output) {
        std::string filename = output_dir + "/walltime.param";
        std::fstream tot_os(filename.c_str(),std::fstream::trunc | std::fstream::out);
        rep.reportParam(tot_os);
    }

}
catch (const std::exception &e) {
    std::cerr << "Program threw an exception: " << e.what() << "\n";
    throw;
}
Пример #4
0
// ----------------- Main program -----------------
int
main(int argc, char** argv)
try
{
    using namespace Opm;

    std::cout << "\n================    Test program for weakly compressible two-phase flow with polymer    ===============\n\n";
    parameter::ParameterGroup param(argc, argv, false);
    std::cout << "---------------    Reading parameters     ---------------" << std::endl;

    // If we have a "deck_filename", grid and props will be read from that.
    bool use_deck = param.has("deck_filename");
    boost::scoped_ptr<EclipseGridParser> deck;
    boost::scoped_ptr<GridManager> grid;
    boost::scoped_ptr<BlackoilPropertiesInterface> props;
    boost::scoped_ptr<RockCompressibility> rock_comp;
    EclipseStateConstPtr eclipseState;
    PolymerBlackoilState state;
    Opm::PolymerProperties poly_props;
    // bool check_well_controls = false;
    // int max_well_control_iterations = 0;
    double gravity[3] = { 0.0 };
    if (use_deck) {
        std::string deck_filename = param.get<std::string>("deck_filename");
        ParserPtr parser(new Opm::Parser());
        eclipseState.reset(new Opm::EclipseState(parser->parseFile(deck_filename)));

        deck.reset(new EclipseGridParser(deck_filename));
        // Grid init
        grid.reset(new GridManager(*deck));
        // Rock and fluid init
        props.reset(new BlackoilPropertiesFromDeck(*deck, *grid->c_grid()));
        // check_well_controls = param.getDefault("check_well_controls", false);
        // max_well_control_iterations = param.getDefault("max_well_control_iterations", 10);
        // Rock compressibility.
        rock_comp.reset(new RockCompressibility(*deck));
        // Gravity.
        gravity[2] = deck->hasField("NOGRAV") ? 0.0 : unit::gravity;
        // Init state variables (saturation and pressure).
        if (param.has("init_saturation")) {
            initStateBasic(*grid->c_grid(), *props, param, gravity[2], state);
        } else {
            initStateFromDeck(*grid->c_grid(), *props, *deck, gravity[2], state);
        }
        initBlackoilSurfvol(*grid->c_grid(), *props, state);
        // Init polymer properties.
        poly_props.readFromDeck(*deck);
    } else {
        // Grid init.
        const int nx = param.getDefault("nx", 100);
        const int ny = param.getDefault("ny", 100);
        const int nz = param.getDefault("nz", 1);
        const double dx = param.getDefault("dx", 1.0);
        const double dy = param.getDefault("dy", 1.0);
        const double dz = param.getDefault("dz", 1.0);
        grid.reset(new GridManager(nx, ny, nz, dx, dy, dz));
        // Rock and fluid init.
        props.reset(new BlackoilPropertiesBasic(param, grid->c_grid()->dimensions, grid->c_grid()->number_of_cells));
        // Rock compressibility.
        rock_comp.reset(new RockCompressibility(param));
        // Gravity.
        gravity[2] = param.getDefault("gravity", 0.0);
        // Init state variables (saturation and pressure).
        initStateBasic(*grid->c_grid(), *props, param, gravity[2], state);
        initBlackoilSurfvol(*grid->c_grid(), *props, state);
        // Init Polymer state
        if (param.has("poly_init")) {
            double poly_init = param.getDefault("poly_init", 0.0);
            for (int cell = 0; cell < grid->c_grid()->number_of_cells; ++cell) {
                double smin[2], smax[2];
                props->satRange(1, &cell, smin, smax);
                if (state.saturation()[2*cell] > 0.5*(smin[0] + smax[0])) {
                    state.concentration()[cell] = poly_init;
                    state.maxconcentration()[cell] = poly_init;
                } else {
                    state.saturation()[2*cell + 0] = 0.;
                    state.saturation()[2*cell + 1] = 1.;
                    state.concentration()[cell] = 0.;
                    state.maxconcentration()[cell] = 0.;
                }
            }
        }
        // Init polymer properties.
        // Setting defaults to provide a simple example case.
        double c_max = param.getDefault("c_max_limit", 5.0);
        double mix_param = param.getDefault("mix_param", 1.0);
        double rock_density = param.getDefault("rock_density", 1000.0);
        double dead_pore_vol = param.getDefault("dead_pore_vol", 0.15);
        double res_factor = param.getDefault("res_factor", 1.) ; // res_factor = 1 gives no change in permeability
        double c_max_ads = param.getDefault("c_max_ads", 1.);
        int ads_index = param.getDefault<int>("ads_index", Opm::PolymerProperties::NoDesorption);
        std::vector<double> c_vals_visc(2, -1e100);
        c_vals_visc[0] = 0.0;
        c_vals_visc[1] = 7.0;
        std::vector<double> visc_mult_vals(2, -1e100);
        visc_mult_vals[0] = 1.0;
        // poly_props.visc_mult_vals[1] = param.getDefault("c_max_viscmult", 30.0);
        visc_mult_vals[1] = 20.0;
        std::vector<double> c_vals_ads(3, -1e100);
        c_vals_ads[0] = 0.0;
        c_vals_ads[1] = 2.0;
        c_vals_ads[2] = 8.0;
        std::vector<double> ads_vals(3, -1e100);
        ads_vals[0] = 0.0;
        ads_vals[1] = 0.0015;
        ads_vals[2] = 0.0025;
        // ads_vals[1] = 0.0;
        // ads_vals[2] = 0.0;
        poly_props.set(c_max, mix_param, rock_density, dead_pore_vol, res_factor, c_max_ads,
                       static_cast<Opm::PolymerProperties::AdsorptionBehaviour>(ads_index),
                       c_vals_visc,  visc_mult_vals, c_vals_ads, ads_vals);
    }

    bool use_gravity = (gravity[0] != 0.0 || gravity[1] != 0.0 || gravity[2] != 0.0);
    const double *grav = use_gravity ? &gravity[0] : 0;

    // Initialising src
    int num_cells = grid->c_grid()->number_of_cells;
    std::vector<double> src(num_cells, 0.0);
    if (use_deck) {
        // Do nothing, wells will be the driving force, not source terms.
    } else {
        // Compute pore volumes, in order to enable specifying injection rate
        // terms of total pore volume.
        std::vector<double> porevol;
        if (rock_comp->isActive()) {
            computePorevolume(*grid->c_grid(), props->porosity(), *rock_comp, state.pressure(), porevol);
        } else {
            computePorevolume(*grid->c_grid(), props->porosity(), porevol);
        }
        const double tot_porevol_init = std::accumulate(porevol.begin(), porevol.end(), 0.0);
        const double default_injection = use_gravity ? 0.0 : 0.1;
        const double flow_per_sec = param.getDefault<double>("injected_porevolumes_per_day", default_injection)
            *tot_porevol_init/unit::day;
        src[0] = flow_per_sec;
        src[num_cells - 1] = -flow_per_sec;
    }

    // Boundary conditions.
    FlowBCManager bcs;
    if (param.getDefault("use_pside", false)) {
        int pside = param.get<int>("pside");
        double pside_pressure = param.get<double>("pside_pressure");
        bcs.pressureSide(*grid->c_grid(), FlowBCManager::Side(pside), pside_pressure);
    }

    // Linear solver.
    LinearSolverFactory linsolver(param);

    // Write parameters used for later reference.
    bool output = param.getDefault("output", true);
    if (output) {
      std::string output_dir =
        param.getDefault("output_dir", std::string("output"));
      boost::filesystem::path fpath(output_dir);
      try {
        create_directories(fpath);
      }
      catch (...) {
        OPM_THROW(std::runtime_error, "Creating directories failed: " << fpath);
      }
      param.writeParam(output_dir + "/simulation.param");
    }


    std::cout << "\n\n================    Starting main simulation loop     ===============\n"
              << "                        (number of epochs: "
              << (use_deck ? deck->numberOfEpochs() : 1) << ")\n\n" << std::flush;

    SimulatorReport rep;
    if (!use_deck) {
        // Simple simulation without a deck.
        PolymerInflowBasic polymer_inflow(param.getDefault("poly_start_days", 300.0)*Opm::unit::day,
                                          param.getDefault("poly_end_days", 800.0)*Opm::unit::day,
                                          param.getDefault("poly_amount", poly_props.cMax()));
        WellsManager wells;
        SimulatorCompressiblePolymer simulator(param,
                                               *grid->c_grid(),
                                               *props,
                                               poly_props,
                                               rock_comp->isActive() ? rock_comp.get() : 0,
                                               wells,
                                               polymer_inflow,
                                               src,
                                               bcs.c_bcs(),
                                               linsolver,
                                               grav);
        SimulatorTimer simtimer;
        simtimer.init(param);
        warnIfUnusedParams(param);
        WellState well_state;
        well_state.init(0, state);
        rep = simulator.run(simtimer, state, well_state);
    } else {
        // With a deck, we may have more epochs etc.
        WellState well_state;
        int step = 0;
        SimulatorTimer simtimer;
        // Use timer for last epoch to obtain total time.
        deck->setCurrentEpoch(deck->numberOfEpochs() - 1);
        simtimer.init(*deck);
        const double total_time = simtimer.totalTime();
        // Check for WPOLYMER presence in last epoch to decide
        // polymer injection control type.
        const bool use_wpolymer = deck->hasField("WPOLYMER");
        if (use_wpolymer) {
            if (param.has("poly_start_days")) {
                OPM_MESSAGE("Warning: Using WPOLYMER to control injection since it was found in deck. "
                        "You seem to be trying to control it via parameter poly_start_days (etc.) as well.");
            }
        }
        for (int epoch = 0; epoch < deck->numberOfEpochs(); ++epoch) {
            // Set epoch index.
            deck->setCurrentEpoch(epoch);

            // Update the timer.
            if (deck->hasField("TSTEP")) {
                simtimer.init(*deck);
            } else {
                if (epoch != 0) {
                    OPM_THROW(std::runtime_error, "No TSTEP in deck for epoch " << epoch);
                }
                simtimer.init(param);
            }
            simtimer.setCurrentStepNum(step);
            simtimer.setTotalTime(total_time);

            // Report on start of epoch.
            std::cout << "\n\n--------------    Starting epoch " << epoch << "    --------------"
                      << "\n                  (number of steps: "
                      << simtimer.numSteps() - step << ")\n\n" << std::flush;

            // Create new wells, polymer inflow controls.
            WellsManager wells(eclipseState , epoch , *grid->c_grid(), props->permeability());
            boost::scoped_ptr<PolymerInflowInterface> polymer_inflow;
            if (use_wpolymer) {
                if (wells.c_wells() == 0) {
                    OPM_THROW(std::runtime_error, "Cannot control polymer injection via WPOLYMER without wells.");
                }
                polymer_inflow.reset(new PolymerInflowFromDeck(*deck, *wells.c_wells(), props->numCells()));
            } else {
                polymer_inflow.reset(new PolymerInflowBasic(param.getDefault("poly_start_days", 300.0)*Opm::unit::day,
                                                            param.getDefault("poly_end_days", 800.0)*Opm::unit::day,
                                                            param.getDefault("poly_amount", poly_props.cMax())));
            }

            // @@@ HACK: we should really make a new well state and
            // properly transfer old well state to it every epoch,
            // since number of wells may change etc.
            if (epoch == 0) {
                well_state.init(wells.c_wells(), state);
            }

            // Create and run simulator.
            SimulatorCompressiblePolymer simulator(param,
                                                   *grid->c_grid(),
                                                   *props,
                                                   poly_props,
                                                   rock_comp->isActive() ? rock_comp.get() : 0,
                                                   wells,
                                                   *polymer_inflow,
                                                   src,
                                                   bcs.c_bcs(),
                                                   linsolver,
                                                   grav);
            if (epoch == 0) {
                warnIfUnusedParams(param);
            }
            SimulatorReport epoch_rep = simulator.run(simtimer, state, well_state);

            // Update total timing report and remember step number.
            rep += epoch_rep;
            step = simtimer.currentStepNum();
        }
    }

    std::cout << "\n\n================    End of simulation     ===============\n\n";
    rep.report(std::cout);
}
catch (const std::exception &e) {
    std::cerr << "Program threw an exception: " << e.what() << "\n";
    throw;
}