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
}
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.
}
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;
}