timeControl.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2011-2024 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM 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.
 
    OpenFOAM 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 OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "timeControl.H"
#include "PstreamReduceOps.H"
 
// * * * * * * * * * * * * * Static Member Data  * * * * * * * * * * * * * * //
 
namespace Foam
{
    template<>
    const char* NamedEnum<timeControl::timeControls, 9>::
    names[] =
    {
        "timeStep",
        "writeTime",
        "outputTime",
        "adjustableRunTime",
        "runTime",
        "runTimes",
        "clockTime",
        "cpuTime",
        "none"
    };
}
 
const Foam::NamedEnum<Foam::timeControl::timeControls, 9>
    Foam::timeControl::timeControlNames_;
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::timeControl::timeControl
(
    const Time& t,
    const dictionary& dict,
    const word& prefix
)
:
    time_(t),
    prefix_(prefix),
    timeControl_(timeControls::timeStep),
    intervalSteps_(0),
    interval_(-1),
    timeDelta_(0),
    executionIndex_(0)
{
    read(dict);
}
 
 
// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
 
Foam::timeControl::~timeControl()
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::timeControl::read(const dictionary& dict)
{
    word controlName(prefix_ + "Control");
    word intervalName(prefix_ + "Interval");
 
    // For backward compatibility support the deprecated 'outputControl' option
    // now superseded by 'writeControl' for compatibility with Time
    if (prefix_ == "write" && dict.found("outputControl"))
    {
        IOWarningInFunction(dict)
            << "Using deprecated 'outputControl'" << nl
            << "    Please use 'writeControl' with 'writeInterval'"
            << endl;
 
        // Change to the old names for this option
        controlName = "outputControl";
        intervalName = "outputInterval";
    }
 
    if (dict.found(controlName))
    {
        timeControl_ = timeControlNames_.read(dict.lookup(controlName));
    }
    else
    {
        timeControl_ = timeControls::timeStep;
    }
 
    switch (timeControl_)
    {
        case timeControls::timeStep:
        {
            intervalSteps_ = dict.lookupOrDefault<label>(intervalName, 0);
            break;
        }
 
        case timeControls::writeTime:
        case timeControls::outputTime:
        {
            intervalSteps_ = dict.lookupOrDefault<label>(intervalName, 1);
            break;
        }
 
        case timeControls::clockTime:
        case timeControls::runTime:
        case timeControls::cpuTime:
        case timeControls::adjustableRunTime:
        {
            interval_ = dict.lookup<scalar>(intervalName, time_.userUnits());
 
            if (timeControl_ == timeControls::adjustableRunTime)
            {
                executionIndex_ = label
                (
                    (
                        (time_.value() - time_.beginTime().value())
                      + 0.5*time_.deltaTValue()
                    )
                    /interval_
                );
            }
 
            break;
        }
 
        case timeControls::runTimes:
        {
            const word timesName(prefix_ + "Times");
            const word frequenciesName(prefix_ + "Frequencies");
            const bool repeat = dict.lookupOrDefault("writeRepeat", false);
 
            timeDelta_ =
                dict.lookupOrDefault
                (
                    "timeDelta",
                    unitNone,
                    1e-3*time_.userDeltaTValue()
                );
 
            if (dict.found(timesName))
            {
                times_ = dict.lookup<scalarList>(timesName, unitNone);
            }
            else if (dict.found(frequenciesName))
            {
                List<Pair<scalar>> frequencies
                (
                    dict.lookup(frequenciesName)
                );
 
                if (!repeat)
                {
                    frequencies.append
                    (
                        {time_.endTime().value(), frequencies.last().second()}
                    );
                }
 
                const scalar frequenciesDuration =
                    frequencies.last().first() - frequencies.first().first();
 
                DynamicList<scalar> times(1, frequencies[0].first());
                label i = 0;
                label repeati = 0;
                while (times[i] < time_.endTime().value())
                {
                    for(label pi=0; pi<frequencies.size()-1; pi++)
                    {
                        while
                        (
                            times[i]
                          < frequencies[pi + 1].first()
                          + repeati*frequenciesDuration - timeDelta_
                        )
                        {
                            times(i + 1) = times[i] + frequencies[pi].second();
                            i++;
                        }
                    }
                    repeati++;
                }
 
                times_ = times;
            }
            else
            {
                FatalErrorInFunction
                    << "Undefined " << timesName
                    << " or " << frequenciesName << " for output control: "
                    << timeControlNames_[timeControl_] << nl
                    << exit(FatalError);
            }
 
            forAll(times_, i)
            {
                timeIndices_.insert
                (
                    int64_t((times_[i] + timeDelta_/2.0)/timeDelta_)
                );
            }
 
            intervalSteps_ = dict.lookupOrDefault<label>(intervalName, 1);
            break;
        }
 
        default:
        {
            break;
        }
    }
}
 
 
bool Foam::timeControl::execute()
{
    switch (timeControl_)
    {
        case timeControls::timeStep:
        {
            return
            (
                (intervalSteps_ <= 1)
             || !(time_.timeIndex() % intervalSteps_)
            );
            break;
        }
 
        case timeControls::writeTime:
        case timeControls::outputTime:
        {
            if (time_.writeTime())
            {
                executionIndex_++;
                return !(executionIndex_ % intervalSteps_);
            }
            break;
        }
 
        case timeControls::runTime:
        case timeControls::adjustableRunTime:
        {
            const label executionIndex = label
            (
                (
                    (time_.value() - time_.beginTime().value())
                  + 0.5*time_.deltaTValue()
                )
               /interval_
            );
 
            if (executionIndex > executionIndex_)
            {
                executionIndex_ = executionIndex;
                return true;
            }
            break;
        }
 
        case timeControls::runTimes:
        {
            return timeIndices_.found
            (
                (time_.userTimeValue() + timeDelta_/2)/timeDelta_
            );
 
            break;
        }
 
        case timeControls::cpuTime:
        {
            const label executionIndex = label
            (
                returnReduce(time_.elapsedCpuTime(), maxOp<double>())
               /interval_
            );
            if (executionIndex > executionIndex_)
            {
                executionIndex_ = executionIndex;
                return true;
            }
            break;
        }
 
        case timeControls::clockTime:
        {
            const label executionIndex = label
            (
                returnReduce(label(time_.elapsedClockTime()), maxOp<label>())
               /interval_
            );
            if (executionIndex > executionIndex_)
            {
                executionIndex_ = executionIndex;
                return true;
            }
            break;
        }
 
        case timeControls::none:
        {
            return false;
        }
 
        default:
        {
            FatalErrorInFunction
                << "Undefined output control: "
                << timeControlNames_[timeControl_] << nl
                << exit(FatalError);
            break;
        }
    }
 
    return false;
}
 
 
Foam::scalar Foam::timeControl::timeToNextAction()
{
    switch (timeControl_)
    {
        case timeControls::timeStep:
        case timeControls::writeTime:
        case timeControls::outputTime:
        case timeControls::runTime:
        case timeControls::cpuTime:
        case timeControls::clockTime:
        case timeControls::none:
        {
            return vGreat;
            break;
        }
 
        case timeControls::adjustableRunTime:
        {
            return
                max
                (
                    0.0,
                    (executionIndex_ + 1)*interval_
                  - (time_.value() - time_.beginTime().value())
                );
            break;
        }
 
        case timeControls::runTimes:
        {
            if (time_.userTimeValue() + timeDelta_ < times_.last())
            {
                forAll(times_, i)
                {
                    if (times_[i] > time_.userTimeValue() + timeDelta_)
                    {
                        return time_.userTimeToTime
                        (
                            times_[i] - time_.userTimeValue()
                        );
                    }
                }
            }
 
            return vGreat;
 
            break;
        }
 
        default:
        {
            FatalErrorInFunction
                << "Undefined output control: "
                << timeControlNames_[timeControl_] << nl
                << exit(FatalError);
            break;
        }
    }
 
    return vGreat;
}
 
 
// ************************************************************************* //