opm-simulators/opm/simulators/timestepping/SimulatorTimer.cpp
Atgeirr Flø Rasmussen 53e46ca017 Cast argument for milliseconds() call to an integer.
Apparently required by boost::posix_time::milliseconds.
2018-06-27 11:11:27 +02:00

174 lines
5.4 KiB
C++

/*
Copyright 2012 SINTEF ICT, Applied Mathematics.
This file is part of the Open Porous Media project (OPM).
OPM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OPM is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with OPM. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <opm/simulators/timestepping/SimulatorTimer.hpp>
#include <opm/common/utility/parameters/ParameterGroup.hpp>
#include <opm/parser/eclipse/Units/Units.hpp>
#include <ostream>
#include <numeric>
namespace Opm
{
/// Default constructor.
SimulatorTimer::SimulatorTimer()
: current_step_(0),
current_time_(0.0),
start_date_(2012,1,1) // A really arbitrary default starting value?!
{
}
/// Initialize from parameters. Accepts the following:
/// num_psteps (default 1)
/// stepsize_days (default 1)
void SimulatorTimer::init(const ParameterGroup& param)
{
const int num_psteps = param.getDefault("num_psteps", 1);
const double stepsize_days = param.getDefault("stepsize_days", 1.0);
const double stepsize = Opm::unit::convert::from(stepsize_days, Opm::unit::day);
timesteps_.clear();
timesteps_.resize(num_psteps, stepsize);
total_time_ = num_psteps*stepsize;
}
/// Use the SimulatorTimer as a shim around opm-parser's Opm::TimeMap
void SimulatorTimer::init(const TimeMap& timeMap, size_t report_step)
{
total_time_ = timeMap.getTotalTime();
timesteps_.resize(timeMap.numTimesteps());
for ( size_t i = 0; i < timeMap.numTimesteps(); ++i ) {
timesteps_[i] = timeMap.getTimeStepLength(i);
}
setCurrentStepNum(report_step);
start_date_ = boost::posix_time::from_time_t( timeMap.getStartTime(0)).date();
}
/// Whether the current step is the first step.
bool SimulatorTimer::initialStep() const
{
return (current_step_ == 0);
}
/// Total number of steps.
int SimulatorTimer::numSteps() const
{
return timesteps_.size();
}
/// Current step number.
int SimulatorTimer::currentStepNum() const
{
return current_step_;
}
/// Set current step number.
void SimulatorTimer::setCurrentStepNum(int step)
{
current_step_ = step;
current_time_ = std::accumulate(timesteps_.begin(), timesteps_.begin() + step, 0.0);
}
/// Current step length.
double SimulatorTimer::currentStepLength() const
{
assert(!done());
return timesteps_[current_step_];
}
double SimulatorTimer::stepLengthTaken() const
{
assert(current_step_ > 0);
return timesteps_[current_step_ - 1];
}
/// time elapsed since the start of the simulation [s].
double SimulatorTimer::simulationTimeElapsed() const
{
return current_time_;
}
boost::posix_time::ptime SimulatorTimer::startDateTime() const
{
return boost::posix_time::ptime(start_date_);
}
boost::posix_time::ptime SimulatorTimer::currentDateTime() const
{
// Boost uses only 32 bit long for seconds, but 64 bit for milliseconds.
// As a workaround for very large times we just use milliseconds.
// The cast is necessary because boost::posix_time::milliseconds requires
// an integer argument.
return startDateTime() + boost::posix_time::milliseconds(static_cast<long long>(simulationTimeElapsed() / Opm::prefix::milli));
}
/// Total time.
double SimulatorTimer::totalTime() const
{
return total_time_;
}
/// Set total time.
/// This is primarily intended for multi-epoch schedules,
/// where a timer for a given epoch does not have
/// access to later timesteps.
void SimulatorTimer::setTotalTime(double time)
{
total_time_ = time;
}
/// Print a report with current and total time etc.
void SimulatorTimer::report(std::ostream& os) const
{
os << "\n\n--------------- Simulation step number " << currentStepNum() << " ---------------"
<< "\n Current time (days) " << Opm::unit::convert::to(simulationTimeElapsed(), Opm::unit::day)
<< "\n Current stepsize (days) " << Opm::unit::convert::to(currentStepLength(), Opm::unit::day)
<< "\n Total time (days) " << Opm::unit::convert::to(totalTime(), Opm::unit::day)
<< "\n" << std::endl;
}
/// Next step.
SimulatorTimer& SimulatorTimer::operator++()
{
assert(!done());
current_time_ += timesteps_[current_step_];
++current_step_;
return *this;
}
/// Return true if op++() has been called numSteps() times.
bool SimulatorTimer::done() const
{
return int(timesteps_.size()) == current_step_;
}
/// return copy of object
std::unique_ptr< SimulatorTimerInterface >
SimulatorTimer::clone() const
{
return std::unique_ptr< SimulatorTimerInterface > (new SimulatorTimer( *this ));
}
} // namespace Opm