From 940b4d1848e8c70ab7642901a68594e8016caffc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 18:51:28 +0200 Subject: Adding upstream version 1:7.0.4. Signed-off-by: Daniel Baumann --- sccomp/source/solver/CoinMPSolver.cxx | 364 +++++++++++++ sccomp/source/solver/DifferentialEvolution.hxx | 165 ++++++ sccomp/source/solver/LpsolveSolver.cxx | 334 ++++++++++++ sccomp/source/solver/ParticelSwarmOptimization.hxx | 179 +++++++ sccomp/source/solver/SolverComponent.cxx | 254 +++++++++ sccomp/source/solver/SolverComponent.hxx | 142 +++++ sccomp/source/solver/SwarmSolver.cxx | 595 +++++++++++++++++++++ sccomp/source/solver/coinmpsolver.component | 16 + sccomp/source/solver/lpsolvesolver.component | 26 + sccomp/source/solver/swarmsolver.component | 15 + 10 files changed, 2090 insertions(+) create mode 100644 sccomp/source/solver/CoinMPSolver.cxx create mode 100644 sccomp/source/solver/DifferentialEvolution.hxx create mode 100644 sccomp/source/solver/LpsolveSolver.cxx create mode 100644 sccomp/source/solver/ParticelSwarmOptimization.hxx create mode 100644 sccomp/source/solver/SolverComponent.cxx create mode 100644 sccomp/source/solver/SolverComponent.hxx create mode 100644 sccomp/source/solver/SwarmSolver.cxx create mode 100644 sccomp/source/solver/coinmpsolver.component create mode 100644 sccomp/source/solver/lpsolvesolver.component create mode 100644 sccomp/source/solver/swarmsolver.component (limited to 'sccomp/source/solver') diff --git a/sccomp/source/solver/CoinMPSolver.cxx b/sccomp/source/solver/CoinMPSolver.cxx new file mode 100644 index 000000000..bd12c85c4 --- /dev/null +++ b/sccomp/source/solver/CoinMPSolver.cxx @@ -0,0 +1,364 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include +#include + +#include "SolverComponent.hxx" +#include + +#include +#include + +#include +#include +#include +#include + +namespace com::sun::star::uno { class XComponentContext; } + +using namespace com::sun::star; + +namespace { + +class CoinMPSolver : public SolverComponent +{ +public: + CoinMPSolver() {} + +private: + virtual void SAL_CALL solve() override; + virtual OUString SAL_CALL getImplementationName() override + { + return "com.sun.star.comp.Calc.CoinMPSolver"; + } + virtual OUString SAL_CALL getComponentDescription() override + { + return SolverComponent::GetResourceString( RID_COINMP_SOLVER_COMPONENT ); + } +}; + +} + +void SAL_CALL CoinMPSolver::solve() +{ + uno::Reference xModel( mxDoc, uno::UNO_QUERY_THROW ); + + maStatus.clear(); + mbSuccess = false; + + xModel->lockControllers(); + + // collect variables in vector (?) + + auto aVariableCells = comphelper::sequenceToContainer>(maVariables); + size_t nVariables = aVariableCells.size(); + size_t nVar = 0; + + // collect all dependent cells + + ScSolverCellHashMap aCellsHash; + aCellsHash[maObjective].reserve( nVariables + 1 ); // objective function + + for (const auto& rConstr : std::as_const(maConstraints)) + { + table::CellAddress aCellAddr = rConstr.Left; + aCellsHash[aCellAddr].reserve( nVariables + 1 ); // constraints: left hand side + + if ( rConstr.Right >>= aCellAddr ) + aCellsHash[aCellAddr].reserve( nVariables + 1 ); // constraints: right hand side + } + + // set all variables to zero + //! store old values? + //! use old values as initial values? + for ( const auto& rVarCell : aVariableCells ) + { + SolverComponent::SetValue( mxDoc, rVarCell, 0.0 ); + } + + // read initial values from all dependent cells + for ( auto& rEntry : aCellsHash ) + { + double fValue = SolverComponent::GetValue( mxDoc, rEntry.first ); + rEntry.second.push_back( fValue ); // store as first element, as-is + } + + // loop through variables + for ( const auto& rVarCell : aVariableCells ) + { + SolverComponent::SetValue( mxDoc, rVarCell, 1.0 ); // set to 1 to examine influence + + // read value change from all dependent cells + for ( auto& rEntry : aCellsHash ) + { + double fChanged = SolverComponent::GetValue( mxDoc, rEntry.first ); + double fInitial = rEntry.second.front(); + rEntry.second.push_back( fChanged - fInitial ); + } + + SolverComponent::SetValue( mxDoc, rVarCell, 2.0 ); // minimal test for linearity + + for ( const auto& rEntry : aCellsHash ) + { + double fInitial = rEntry.second.front(); + double fCoeff = rEntry.second.back(); // last appended: coefficient for this variable + double fTwo = SolverComponent::GetValue( mxDoc, rEntry.first ); + + bool bLinear = rtl::math::approxEqual( fTwo, fInitial + 2.0 * fCoeff ) || + rtl::math::approxEqual( fInitial, fTwo - 2.0 * fCoeff ); + // second comparison is needed in case fTwo is zero + if ( !bLinear ) + maStatus = SolverComponent::GetResourceString( RID_ERROR_NONLINEAR ); + } + + SolverComponent::SetValue( mxDoc, rVarCell, 0.0 ); // set back to zero for examining next variable + } + + xModel->unlockControllers(); + + if ( !maStatus.isEmpty() ) + return; + + // + // build parameter arrays for CoinMP + // + + // set objective function + + const std::vector& rObjCoeff = aCellsHash[maObjective]; + std::unique_ptr pObjectCoeffs(new double[nVariables]); + for (nVar=0; nVar pCompMatrix(new double[nCompSize]); // first collect all coefficients, row-wise + for (size_t i=0; i pRHS(new double[nRows]); + std::unique_ptr pRowType(new char[nRows]); + for (size_t i=0; i>= aRightAddr ) + bRightCell = true; // cell specified as right-hand side + else + rRightAny >>= fDirectValue; // constant value + + table::CellAddress aLeftAddr = maConstraints[nConstrPos].Left; + + const std::vector& rLeftCoeff = aCellsHash[aLeftAddr]; + double* pValues = &pCompMatrix[nConstrPos * nVariables]; + for (nVar=0; nVar& rRightCoeff = aCellsHash[aRightAddr]; + // modify pValues with rhs coefficients + for (nVar=0; nVar pMatrixBegin(new int[nVariables+1]); + std::unique_ptr pMatrixCount(new int[nVariables]); + std::unique_ptr pMatrix(new double[nCompSize]); // not always completely used + std::unique_ptr pMatrixIndex(new int[nCompSize]); + int nMatrixPos = 0; + for (nVar=0; nVar pLowerBounds(new double[nVariables]); + std::unique_ptr pUpperBounds(new double[nVariables]); + for (nVar=0; nVar pColType(new char[nVariables]); + for (nVar=0; nVar const &) +{ + return cppu::acquire(new CoinMPSolver()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/DifferentialEvolution.hxx b/sccomp/source/solver/DifferentialEvolution.hxx new file mode 100644 index 000000000..7d1882135 --- /dev/null +++ b/sccomp/source/solver/DifferentialEvolution.hxx @@ -0,0 +1,165 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + */ + +#ifndef INCLUDED_SCCOMP_SOURCE_DIFFERENTIALEVOLUTION_HXX +#define INCLUDED_SCCOMP_SOURCE_DIFFERENTIALEVOLUTION_HXX + +#include +#include +#include + +struct Individual +{ + std::vector mVariables; +}; + +template class DifferentialEvolutionAlgorithm +{ + static constexpr double mnDifferentialWeight = 0.5; // [0, 2] + static constexpr double mnCrossoverProbability = 0.9; // [0, 1] + + static constexpr double constAcceptedPrecision = 0.000000001; + + DataProvider& mrDataProvider; + + size_t mnPopulationSize; + std::vector maPopulation; + + std::random_device maRandomDevice; + std::mt19937 maGenerator; + size_t mnDimensionality; + + std::uniform_int_distribution<> maRandomPopulation; + std::uniform_int_distribution<> maRandomDimensionality; + std::uniform_real_distribution<> maRandom01; + + Individual maBestCandidate; + double mfBestFitness; + int mnGeneration; + int mnLastChange; + +public: + DifferentialEvolutionAlgorithm(DataProvider& rDataProvider, size_t nPopulationSize) + : mrDataProvider(rDataProvider) + , mnPopulationSize(nPopulationSize) + , maGenerator(maRandomDevice()) + , mnDimensionality(mrDataProvider.getDimensionality()) + , maRandomPopulation(0, mnPopulationSize - 1) + , maRandomDimensionality(0, mnDimensionality - 1) + , maRandom01(0.0, 1.0) + , mfBestFitness(std::numeric_limits::lowest()) + , mnGeneration(0) + , mnLastChange(0) + { + } + + std::vector const& getResult() { return maBestCandidate.mVariables; } + + int getGeneration() { return mnGeneration; } + + int getLastChange() { return mnLastChange; } + + void initialize() + { + mnGeneration = 0; + mnLastChange = 0; + maPopulation.clear(); + maBestCandidate.mVariables.clear(); + + // Initialize population with individuals that have been initialized with uniform random + // noise + // uniform noise means random value inside your search space + maPopulation.reserve(mnPopulationSize); + for (size_t i = 0; i < mnPopulationSize; ++i) + { + maPopulation.emplace_back(); + Individual& rIndividual = maPopulation.back(); + mrDataProvider.initializeVariables(rIndividual.mVariables, maGenerator); + } + } + + // Calculate one generation + bool next() + { + bool bBestChanged = false; + + for (size_t agentIndex = 0; agentIndex < mnPopulationSize; ++agentIndex) + { + // calculate new candidate solution + + // pick random point from population + size_t x = agentIndex; // randomPopulation(generator); + size_t a, b, c; + + // create a copy of chosen random agent in population + Individual& rOriginal = maPopulation[x]; + Individual aCandidate(rOriginal); + + // pick three different random points from population + do + { + a = maRandomPopulation(maGenerator); + } while (a == x); + + do + { + b = maRandomPopulation(maGenerator); + } while (b == x || b == a); + + do + { + c = maRandomPopulation(maGenerator); + + } while (c == x || c == a || c == b); + + size_t randomIndex = maRandomDimensionality(maGenerator); + + for (size_t index = 0; index < mnDimensionality; ++index) + { + double randomCrossoverProbability = maRandom01(maGenerator); + if (index == randomIndex || randomCrossoverProbability < mnCrossoverProbability) + { + double fVarA = maPopulation[a].mVariables[index]; + double fVarB = maPopulation[b].mVariables[index]; + double fVarC = maPopulation[c].mVariables[index]; + + double fNewValue = fVarA + mnDifferentialWeight * (fVarB - fVarC); + fNewValue = mrDataProvider.boundVariable(index, fNewValue); + aCandidate.mVariables[index] = fNewValue; + } + } + + double fCandidateFitness = mrDataProvider.calculateFitness(aCandidate.mVariables); + + // see if is better than original, if so replace + if (fCandidateFitness > mrDataProvider.calculateFitness(rOriginal.mVariables)) + { + maPopulation[x] = aCandidate; + + if (fCandidateFitness > mfBestFitness) + { + if (std::abs(fCandidateFitness - mfBestFitness) > constAcceptedPrecision) + { + bBestChanged = true; + mnLastChange = mnGeneration; + } + mfBestFitness = fCandidateFitness; + maBestCandidate = maPopulation[x]; + } + } + } + mnGeneration++; + return bBestChanged; + } +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/LpsolveSolver.cxx b/sccomp/source/solver/LpsolveSolver.cxx new file mode 100644 index 000000000..e53c68555 --- /dev/null +++ b/sccomp/source/solver/LpsolveSolver.cxx @@ -0,0 +1,334 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * + * for a copy of the LGPLv3 License. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + * + ************************************************************************/ + +#include + +#undef LANGUAGE_NONE +#if defined _WIN32 +#define WINAPI __stdcall +#endif +#define LoadInverseLib FALSE +#define LoadLanguageLib FALSE +#ifdef SYSTEM_LPSOLVE +#include +#else +#include +#endif +#undef LANGUAGE_NONE + +#include "SolverComponent.hxx" +#include + +#include +#include +#include +#include +#include + +namespace com::sun::star::uno { class XComponentContext; } + +using namespace com::sun::star; + +namespace { + +class LpsolveSolver : public SolverComponent +{ +public: + LpsolveSolver() {} + +private: + virtual void SAL_CALL solve() override; + virtual OUString SAL_CALL getImplementationName() override + { + return "com.sun.star.comp.Calc.LpsolveSolver"; + } + virtual OUString SAL_CALL getComponentDescription() override + { + return SolverComponent::GetResourceString( RID_SOLVER_COMPONENT ); + } +}; + +} + +void SAL_CALL LpsolveSolver::solve() +{ + uno::Reference xModel( mxDoc, uno::UNO_QUERY_THROW ); + + maStatus.clear(); + mbSuccess = false; + + if ( mnEpsilonLevel < EPS_TIGHT || mnEpsilonLevel > EPS_BAGGY ) + { + maStatus = SolverComponent::GetResourceString( RID_ERROR_EPSILONLEVEL ); + return; + } + + xModel->lockControllers(); + + // collect variables in vector (?) + + auto aVariableCells = comphelper::sequenceToContainer>(maVariables); + size_t nVariables = aVariableCells.size(); + size_t nVar = 0; + + // collect all dependent cells + + ScSolverCellHashMap aCellsHash; + aCellsHash[maObjective].reserve( nVariables + 1 ); // objective function + + for (const auto& rConstr : std::as_const(maConstraints)) + { + table::CellAddress aCellAddr = rConstr.Left; + aCellsHash[aCellAddr].reserve( nVariables + 1 ); // constraints: left hand side + + if ( rConstr.Right >>= aCellAddr ) + aCellsHash[aCellAddr].reserve( nVariables + 1 ); // constraints: right hand side + } + + // set all variables to zero + //! store old values? + //! use old values as initial values? + for ( const auto& rVarCell : aVariableCells ) + { + SolverComponent::SetValue( mxDoc, rVarCell, 0.0 ); + } + + // read initial values from all dependent cells + for ( auto& rEntry : aCellsHash ) + { + double fValue = SolverComponent::GetValue( mxDoc, rEntry.first ); + rEntry.second.push_back( fValue ); // store as first element, as-is + } + + // loop through variables + for ( const auto& rVarCell : aVariableCells ) + { + SolverComponent::SetValue( mxDoc, rVarCell, 1.0 ); // set to 1 to examine influence + + // read value change from all dependent cells + for ( auto& rEntry : aCellsHash ) + { + double fChanged = SolverComponent::GetValue( mxDoc, rEntry.first ); + double fInitial = rEntry.second.front(); + rEntry.second.push_back( fChanged - fInitial ); + } + + SolverComponent::SetValue( mxDoc, rVarCell, 2.0 ); // minimal test for linearity + + for ( const auto& rEntry : aCellsHash ) + { + double fInitial = rEntry.second.front(); + double fCoeff = rEntry.second.back(); // last appended: coefficient for this variable + double fTwo = SolverComponent::GetValue( mxDoc, rEntry.first ); + + bool bLinear = rtl::math::approxEqual( fTwo, fInitial + 2.0 * fCoeff ) || + rtl::math::approxEqual( fInitial, fTwo - 2.0 * fCoeff ); + // second comparison is needed in case fTwo is zero + if ( !bLinear ) + maStatus = SolverComponent::GetResourceString( RID_ERROR_NONLINEAR ); + } + + SolverComponent::SetValue( mxDoc, rVarCell, 0.0 ); // set back to zero for examining next variable + } + + xModel->unlockControllers(); + + if ( !maStatus.isEmpty() ) + return; + + + // build lp_solve model + + + lprec* lp = make_lp( 0, nVariables ); + if ( !lp ) + return; + + set_outputfile( lp, const_cast( "" ) ); // no output + + // set objective function + + const std::vector& rObjCoeff = aCellsHash[maObjective]; + std::unique_ptr pObjVal(new REAL[nVariables+1]); + pObjVal[0] = 0.0; // ignored + for (nVar=0; nVar>= aRightAddr ) + bRightCell = true; // cell specified as right-hand side + else + rRightAny >>= fDirectValue; // constant value + + table::CellAddress aLeftAddr = rConstr.Left; + + const std::vector& rLeftCoeff = aCellsHash[aLeftAddr]; + std::unique_ptr pValues(new REAL[nVariables+1] ); + pValues[0] = 0.0; // ignored? + for (nVar=0; nVar& rRightCoeff = aCellsHash[aRightAddr]; + // modify pValues with rhs coefficients + for (nVar=0; nVar const &) +{ + return cppu::acquire(new LpsolveSolver()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/ParticelSwarmOptimization.hxx b/sccomp/source/solver/ParticelSwarmOptimization.hxx new file mode 100644 index 000000000..ec76474dd --- /dev/null +++ b/sccomp/source/solver/ParticelSwarmOptimization.hxx @@ -0,0 +1,179 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + */ + +#ifndef INCLUDED_SCCOMP_SOURCE_PARTICLESWARM_HXX +#define INCLUDED_SCCOMP_SOURCE_PARTICLESWARM_HXX + +#include +#include +#include + +struct Particle +{ + Particle(size_t nDimensionality) + : mVelocity(nDimensionality) + , mPosition(nDimensionality) + , mCurrentFitness(std::numeric_limits::lowest()) + , mBestPosition(nDimensionality) + , mBestFitness(std::numeric_limits::lowest()) + { + } + + std::vector mVelocity; + + std::vector mPosition; + double mCurrentFitness; + + std::vector mBestPosition; + double mBestFitness; +}; + +template class ParticleSwarmOptimizationAlgorithm +{ +private: + // inertia + static constexpr double constWeight = 0.729; + // cognitive coefficient + static constexpr double c1 = 1.49445; + // social coefficient + static constexpr double c2 = 1.49445; + + static constexpr double constAcceptedPrecision = 0.000000001; + + DataProvider& mrDataProvider; + + size_t mnNumOfParticles; + + std::vector maSwarm; + + std::random_device maRandomDevice; + std::mt19937 maGenerator; + size_t mnDimensionality; + + std::uniform_real_distribution<> maRandom01; + + std::vector maBestPosition; + double mfBestFitness; + int mnGeneration; + int mnLastChange; + +public: + ParticleSwarmOptimizationAlgorithm(DataProvider& rDataProvider, size_t nNumOfParticles) + : mrDataProvider(rDataProvider) + , mnNumOfParticles(nNumOfParticles) + , maGenerator(maRandomDevice()) + , mnDimensionality(mrDataProvider.getDimensionality()) + , maRandom01(0.0, 1.0) + , maBestPosition(mnDimensionality) + , mfBestFitness(std::numeric_limits::lowest()) + , mnGeneration(0) + , mnLastChange(0) + { + } + + std::vector const& getResult() { return maBestPosition; } + + int getGeneration() { return mnGeneration; } + + int getLastChange() { return mnLastChange; } + + void initialize() + { + mnGeneration = 0; + mnLastChange = 0; + maSwarm.clear(); + + mfBestFitness = std::numeric_limits::lowest(); + + maSwarm.reserve(mnNumOfParticles); + for (size_t i = 0; i < mnNumOfParticles; i++) + { + maSwarm.emplace_back(mnDimensionality); + Particle& rParticle = maSwarm.back(); + + mrDataProvider.initializeVariables(rParticle.mPosition, maGenerator); + mrDataProvider.initializeVariables(rParticle.mVelocity, maGenerator); + + for (size_t k = 0; k < mnDimensionality; k++) + { + rParticle.mPosition[k] = mrDataProvider.clampVariable(k, rParticle.mPosition[k]); + } + + rParticle.mCurrentFitness = mrDataProvider.calculateFitness(rParticle.mPosition); + + for (size_t k = 0; k < mnDimensionality; k++) + { + rParticle.mPosition[k] = mrDataProvider.clampVariable(k, rParticle.mPosition[k]); + } + + std::copy(rParticle.mPosition.begin(), rParticle.mPosition.end(), + rParticle.mBestPosition.begin()); + rParticle.mBestFitness = rParticle.mCurrentFitness; + + if (rParticle.mCurrentFitness > mfBestFitness) + { + mfBestFitness = rParticle.mCurrentFitness; + std::copy(rParticle.mPosition.begin(), rParticle.mPosition.end(), + maBestPosition.begin()); + } + } + } + + bool next() + { + bool bBestChanged = false; + + for (Particle& rParticle : maSwarm) + { + double fRandom1 = maRandom01(maGenerator); + double fRandom2 = maRandom01(maGenerator); + + for (size_t k = 0; k < mnDimensionality; k++) + { + rParticle.mVelocity[k] + = (constWeight * rParticle.mVelocity[k]) + + (c1 * fRandom1 * (rParticle.mBestPosition[k] - rParticle.mPosition[k])) + + (c2 * fRandom2 * (maBestPosition[k] - rParticle.mPosition[k])); + + mrDataProvider.clampVariable(k, rParticle.mVelocity[k]); + + rParticle.mPosition[k] += rParticle.mVelocity[k]; + rParticle.mPosition[k] = mrDataProvider.clampVariable(k, rParticle.mPosition[k]); + } + + rParticle.mCurrentFitness = mrDataProvider.calculateFitness(rParticle.mPosition); + + if (rParticle.mCurrentFitness > rParticle.mBestFitness) + { + rParticle.mBestFitness = rParticle.mCurrentFitness; + std::copy(rParticle.mPosition.begin(), rParticle.mPosition.end(), + rParticle.mBestPosition.begin()); + } + + if (rParticle.mCurrentFitness > mfBestFitness) + { + if (std::abs(rParticle.mCurrentFitness - mfBestFitness) > constAcceptedPrecision) + { + bBestChanged = true; + mnLastChange = mnGeneration; + } + std::copy(rParticle.mPosition.begin(), rParticle.mPosition.end(), + maBestPosition.begin()); + mfBestFitness = rParticle.mCurrentFitness; + } + } + mnGeneration++; + return bBestChanged; + } +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/SolverComponent.cxx b/sccomp/source/solver/SolverComponent.cxx new file mode 100644 index 000000000..3df7bf5d5 --- /dev/null +++ b/sccomp/source/solver/SolverComponent.cxx @@ -0,0 +1,254 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include "SolverComponent.hxx" +#include + +#include +#include +#include +#include + +#include + +#include + +using namespace com::sun::star; + + +#define STR_NONNEGATIVE "NonNegative" +#define STR_INTEGER "Integer" +#define STR_TIMEOUT "Timeout" +#define STR_EPSILONLEVEL "EpsilonLevel" +#define STR_LIMITBBDEPTH "LimitBBDepth" + + +// Resources from tools are used for translated strings + +OUString SolverComponent::GetResourceString(const char* pId) +{ + return Translate::get(pId, Translate::Create("scc")); +} + +size_t ScSolverCellHash::operator()( const css::table::CellAddress& rAddress ) const +{ + return ( rAddress.Sheet << 24 ) | ( rAddress.Column << 16 ) | rAddress.Row; +} + +bool ScSolverCellEqual::operator()( const css::table::CellAddress& rAddr1, const css::table::CellAddress& rAddr2 ) const +{ + return AddressEqual( rAddr1, rAddr2 ); +} + +namespace +{ + enum + { + PROP_NONNEGATIVE, + PROP_INTEGER, + PROP_TIMEOUT, + PROP_EPSILONLEVEL, + PROP_LIMITBBDEPTH + }; +} + +uno::Reference SolverComponent::GetCell( const uno::Reference& xDoc, + const table::CellAddress& rPos ) +{ + uno::Reference xSheets( xDoc->getSheets(), uno::UNO_QUERY ); + uno::Reference xSheet( xSheets->getByIndex( rPos.Sheet ), uno::UNO_QUERY ); + return xSheet->getCellByPosition( rPos.Column, rPos.Row ); +} + +void SolverComponent::SetValue( const uno::Reference& xDoc, + const table::CellAddress& rPos, double fValue ) +{ + SolverComponent::GetCell( xDoc, rPos )->setValue( fValue ); +} + +double SolverComponent::GetValue( const uno::Reference& xDoc, + const table::CellAddress& rPos ) +{ + return SolverComponent::GetCell( xDoc, rPos )->getValue(); +} + +SolverComponent::SolverComponent() : + OPropertyContainer( GetBroadcastHelper() ), + mbMaximize( true ), + mbNonNegative( false ), + mbInteger( false ), + mnTimeout( 100 ), + mnEpsilonLevel( 0 ), + mbLimitBBDepth( true ), + mbSuccess( false ), + mfResultValue( 0.0 ) +{ + // for XPropertySet implementation: + registerProperty( STR_NONNEGATIVE, PROP_NONNEGATIVE, 0, &mbNonNegative, cppu::UnoType::get() ); + registerProperty( STR_INTEGER, PROP_INTEGER, 0, &mbInteger, cppu::UnoType::get() ); + registerProperty( STR_TIMEOUT, PROP_TIMEOUT, 0, &mnTimeout, cppu::UnoType::get() ); + registerProperty( STR_EPSILONLEVEL, PROP_EPSILONLEVEL, 0, &mnEpsilonLevel, cppu::UnoType::get() ); + registerProperty( STR_LIMITBBDEPTH, PROP_LIMITBBDEPTH, 0, &mbLimitBBDepth, cppu::UnoType::get() ); +} + +SolverComponent::~SolverComponent() +{ +} + +IMPLEMENT_FORWARD_XINTERFACE2( SolverComponent, SolverComponent_Base, OPropertyContainer ) +IMPLEMENT_FORWARD_XTYPEPROVIDER2( SolverComponent, SolverComponent_Base, OPropertyContainer ) + +cppu::IPropertyArrayHelper* SolverComponent::createArrayHelper() const +{ + uno::Sequence aProps; + describeProperties( aProps ); + return new cppu::OPropertyArrayHelper( aProps ); +} + +cppu::IPropertyArrayHelper& SAL_CALL SolverComponent::getInfoHelper() +{ + return *getArrayHelper(); +} + +uno::Reference SAL_CALL SolverComponent::getPropertySetInfo() +{ + return createPropertySetInfo( getInfoHelper() ); +} + +// XSolverDescription + +OUString SAL_CALL SolverComponent::getStatusDescription() +{ + return maStatus; +} + +OUString SAL_CALL SolverComponent::getPropertyDescription( const OUString& rPropertyName ) +{ + const char* pResId = nullptr; + sal_Int32 nHandle = getInfoHelper().getHandleByName( rPropertyName ); + switch (nHandle) + { + case PROP_NONNEGATIVE: + pResId = RID_PROPERTY_NONNEGATIVE; + break; + case PROP_INTEGER: + pResId = RID_PROPERTY_INTEGER; + break; + case PROP_TIMEOUT: + pResId = RID_PROPERTY_TIMEOUT; + break; + case PROP_EPSILONLEVEL: + pResId = RID_PROPERTY_EPSILONLEVEL; + break; + case PROP_LIMITBBDEPTH: + pResId = RID_PROPERTY_LIMITBBDEPTH; + break; + default: + { + // unknown - leave empty + } + } + OUString aRet; + if (pResId) + aRet = SolverComponent::GetResourceString(pResId); + return aRet; +} + +// XSolver: settings + +uno::Reference SAL_CALL SolverComponent::getDocument() +{ + return mxDoc; +} + +void SAL_CALL SolverComponent::setDocument( const uno::Reference& _document ) +{ + mxDoc = _document; +} + +table::CellAddress SAL_CALL SolverComponent::getObjective() +{ + return maObjective; +} + +void SAL_CALL SolverComponent::setObjective( const table::CellAddress& _objective ) +{ + maObjective = _objective; +} + +uno::Sequence SAL_CALL SolverComponent::getVariables() +{ + return maVariables; +} + +void SAL_CALL SolverComponent::setVariables( const uno::Sequence& _variables ) +{ + maVariables = _variables; +} + +uno::Sequence SAL_CALL SolverComponent::getConstraints() +{ + return maConstraints; +} + +void SAL_CALL SolverComponent::setConstraints( const uno::Sequence& _constraints ) +{ + maConstraints = _constraints; +} + +sal_Bool SAL_CALL SolverComponent::getMaximize() +{ + return mbMaximize; +} + +void SAL_CALL SolverComponent::setMaximize( sal_Bool _maximize ) +{ + mbMaximize = _maximize; +} + +// XSolver: get results + +sal_Bool SAL_CALL SolverComponent::getSuccess() +{ + return mbSuccess; +} + +double SAL_CALL SolverComponent::getResultValue() +{ + return mfResultValue; +} + +uno::Sequence SAL_CALL SolverComponent::getSolution() +{ + return maSolution; +} + +// XServiceInfo + +sal_Bool SAL_CALL SolverComponent::supportsService( const OUString& rServiceName ) +{ + return cppu::supportsService(this, rServiceName); +} + +uno::Sequence SAL_CALL SolverComponent::getSupportedServiceNames() +{ + return { "com.sun.star.sheet.Solver" }; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/SolverComponent.hxx b/sccomp/source/solver/SolverComponent.hxx new file mode 100644 index 000000000..d4ead6889 --- /dev/null +++ b/sccomp/source/solver/SolverComponent.hxx @@ -0,0 +1,142 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#ifndef INCLUDED_SCCOMP_SOURCE_SOLVER_SOLVERCOMPONENT_HXX +#define INCLUDED_SCCOMP_SOURCE_SOLVER_SOLVERCOMPONENT_HXX + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +namespace com::sun::star::table { class XCell; } + +// hash map for the coefficients of a dependent cell (objective or constraint) +// The size of each vector is the number of columns (variable cells) plus one, first entry is initial value. + +struct ScSolverCellHash +{ + size_t operator()( const css::table::CellAddress& rAddress ) const; +}; + +inline bool AddressEqual( const css::table::CellAddress& rAddr1, const css::table::CellAddress& rAddr2 ) +{ + return rAddr1.Sheet == rAddr2.Sheet && rAddr1.Column == rAddr2.Column && rAddr1.Row == rAddr2.Row; +} + +struct ScSolverCellEqual +{ + bool operator()( const css::table::CellAddress& rAddr1, const css::table::CellAddress& rAddr2 ) const; +}; + +typedef std::unordered_map< css::table::CellAddress, std::vector, ScSolverCellHash, ScSolverCellEqual > ScSolverCellHashMap; + +typedef cppu::WeakImplHelper< + css::sheet::XSolver, + css::sheet::XSolverDescription, + css::lang::XServiceInfo > + SolverComponent_Base; + +class SolverComponent : public comphelper::OMutexAndBroadcastHelper, + public comphelper::OPropertyContainer, + public comphelper::OPropertyArrayUsageHelper< SolverComponent >, + public SolverComponent_Base +{ +protected: + // settings + css::uno::Reference< css::sheet::XSpreadsheetDocument > mxDoc; + css::table::CellAddress maObjective; + css::uno::Sequence< css::table::CellAddress > maVariables; + css::uno::Sequence< css::sheet::SolverConstraint > maConstraints; + bool mbMaximize; + // set via XPropertySet + bool mbNonNegative; + bool mbInteger; + sal_Int32 mnTimeout; + sal_Int32 mnEpsilonLevel; + bool mbLimitBBDepth; + // results + bool mbSuccess; + double mfResultValue; + css::uno::Sequence< double > maSolution; + OUString maStatus; + + static OUString GetResourceString(const char* pId); + static css::uno::Reference GetCell( + const css::uno::Reference& xDoc, + const css::table::CellAddress& rPos ); + static void SetValue( + const css::uno::Reference& xDoc, + const css::table::CellAddress& rPos, double fValue ); + static double GetValue( + const css::uno::Reference& xDoc, + const css::table::CellAddress& rPos ); + +public: + SolverComponent(); + virtual ~SolverComponent() override; + + DECLARE_XINTERFACE() + DECLARE_XTYPEPROVIDER() + + virtual css::uno::Reference< css::beans::XPropertySetInfo > SAL_CALL getPropertySetInfo() override; + virtual ::cppu::IPropertyArrayHelper& SAL_CALL getInfoHelper() override; // from OPropertySetHelper + virtual ::cppu::IPropertyArrayHelper* createArrayHelper() const override; // from OPropertyArrayUsageHelper + + // XSolver + virtual css::uno::Reference< css::sheet::XSpreadsheetDocument > SAL_CALL getDocument() override; + virtual void SAL_CALL setDocument( const css::uno::Reference< + css::sheet::XSpreadsheetDocument >& _document ) override; + virtual css::table::CellAddress SAL_CALL getObjective() override; + virtual void SAL_CALL setObjective( const css::table::CellAddress& _objective ) override; + virtual css::uno::Sequence< css::table::CellAddress > SAL_CALL getVariables() override; + virtual void SAL_CALL setVariables( const css::uno::Sequence< + css::table::CellAddress >& _variables ) override; + virtual css::uno::Sequence< css::sheet::SolverConstraint > SAL_CALL getConstraints() override; + virtual void SAL_CALL setConstraints( const css::uno::Sequence< + css::sheet::SolverConstraint >& _constraints ) override; + virtual sal_Bool SAL_CALL getMaximize() override; + virtual void SAL_CALL setMaximize( sal_Bool _maximize ) override; + + virtual sal_Bool SAL_CALL getSuccess() override; + virtual double SAL_CALL getResultValue() override; + virtual css::uno::Sequence< double > SAL_CALL getSolution() override; + + virtual void SAL_CALL solve() override = 0; + + // XSolverDescription + virtual OUString SAL_CALL getComponentDescription() override = 0; + virtual OUString SAL_CALL getStatusDescription() override; + virtual OUString SAL_CALL getPropertyDescription( const OUString& aPropertyName ) override; + + // XServiceInfo + virtual OUString SAL_CALL getImplementationName() override = 0; + virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override; + virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames() override; +}; + +#endif + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/SwarmSolver.cxx b/sccomp/source/solver/SwarmSolver.cxx new file mode 100644 index 000000000..d59df2834 --- /dev/null +++ b/sccomp/source/solver/SwarmSolver.cxx @@ -0,0 +1,595 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include + +#include + +#include "DifferentialEvolution.hxx" +#include "ParticelSwarmOptimization.hxx" + +#include + +namespace com::sun::star::uno +{ +class XComponentContext; +} + +using namespace css; + +namespace +{ +struct Bound +{ + double lower; + double upper; + + Bound() + // float bounds should be low/high enough for all practical uses + // otherwise we are too far away from the solution + : lower(std::numeric_limits::lowest()) + , upper(std::numeric_limits::max()) + { + } + + void updateBound(sheet::SolverConstraintOperator eOp, double fValue) + { + if (eOp == sheet::SolverConstraintOperator_LESS_EQUAL) + { + // if we set the bound multiple times use the one which includes both values + // for example bound values 100, 120, 150 -> use 100 -> the lowest one + if (fValue < upper) + upper = fValue; + } + else if (eOp == sheet::SolverConstraintOperator_GREATER_EQUAL) + { + if (fValue > lower) + lower = fValue; + } + else if (eOp == sheet::SolverConstraintOperator_EQUAL) + { + lower = fValue; + upper = fValue; + } + } +}; + +enum +{ + PROP_NONNEGATIVE, + PROP_INTEGER, + PROP_TIMEOUT, + PROP_ALGORITHM, +}; + +} // end anonymous namespace + +typedef cppu::WeakImplHelper + SwarmSolver_Base; + +namespace +{ +class SwarmSolver : public comphelper::OMutexAndBroadcastHelper, + public comphelper::OPropertyContainer, + public comphelper::OPropertyArrayUsageHelper, + public SwarmSolver_Base +{ +private: + uno::Reference mxDocument; + table::CellAddress maObjective; + uno::Sequence maVariables; + uno::Sequence maConstraints; + bool mbMaximize; + + // set via XPropertySet + bool mbNonNegative; + bool mbInteger; + sal_Int32 mnTimeout; + sal_Int32 mnAlgorithm; + + // results + bool mbSuccess; + double mfResultValue; + + uno::Sequence maSolution; + OUString maStatus; + + std::vector maBounds; + std::vector maNonBoundedConstraints; + +private: + static OUString getResourceString(const char* pId); + + uno::Reference getCell(const table::CellAddress& rPosition); + void setValue(const table::CellAddress& rPosition, double fValue); + double getValue(const table::CellAddress& rPosition); + +public: + SwarmSolver() + : OPropertyContainer(GetBroadcastHelper()) + , mbMaximize(true) + , mbNonNegative(false) + , mbInteger(false) + , mnTimeout(60000) + , mnAlgorithm(0) + , mbSuccess(false) + , mfResultValue(0.0) + { + registerProperty("NonNegative", PROP_NONNEGATIVE, 0, &mbNonNegative, + cppu::UnoType::get()); + registerProperty("Integer", PROP_INTEGER, 0, &mbInteger, + cppu::UnoType::get()); + registerProperty("Timeout", PROP_TIMEOUT, 0, &mnTimeout, + cppu::UnoType::get()); + registerProperty("Algorithm", PROP_ALGORITHM, 0, &mnAlgorithm, + cppu::UnoType::get()); + } + + DECLARE_XINTERFACE() + DECLARE_XTYPEPROVIDER() + + virtual uno::Reference SAL_CALL getPropertySetInfo() override + { + return createPropertySetInfo(getInfoHelper()); + } + // OPropertySetHelper + virtual cppu::IPropertyArrayHelper& SAL_CALL getInfoHelper() override + { + return *getArrayHelper(); + } + // OPropertyArrayUsageHelper + virtual cppu::IPropertyArrayHelper* createArrayHelper() const override + { + uno::Sequence aProperties; + describeProperties(aProperties); + return new cppu::OPropertyArrayHelper(aProperties); + } + + // XSolver + virtual uno::Reference SAL_CALL getDocument() override + { + return mxDocument; + } + virtual void SAL_CALL + setDocument(const uno::Reference& rDocument) override + { + mxDocument = rDocument; + } + + virtual table::CellAddress SAL_CALL getObjective() override { return maObjective; } + virtual void SAL_CALL setObjective(const table::CellAddress& rObjective) override + { + maObjective = rObjective; + } + + virtual uno::Sequence SAL_CALL getVariables() override + { + return maVariables; + } + virtual void SAL_CALL setVariables(const uno::Sequence& rVariables) override + { + maVariables = rVariables; + } + + virtual uno::Sequence SAL_CALL getConstraints() override + { + return maConstraints; + } + virtual void SAL_CALL + setConstraints(const uno::Sequence& rConstraints) override + { + maConstraints = rConstraints; + } + + virtual sal_Bool SAL_CALL getMaximize() override { return mbMaximize; } + virtual void SAL_CALL setMaximize(sal_Bool bMaximize) override { mbMaximize = bMaximize; } + + virtual sal_Bool SAL_CALL getSuccess() override { return mbSuccess; } + virtual double SAL_CALL getResultValue() override { return mfResultValue; } + + virtual uno::Sequence SAL_CALL getSolution() override { return maSolution; } + + virtual void SAL_CALL solve() override; + + // XSolverDescription + virtual OUString SAL_CALL getComponentDescription() override + { + return SwarmSolver::getResourceString(RID_SWARM_SOLVER_COMPONENT); + } + + virtual OUString SAL_CALL getStatusDescription() override { return maStatus; } + + virtual OUString SAL_CALL getPropertyDescription(const OUString& rPropertyName) override + { + const char* pResId = nullptr; + switch (getInfoHelper().getHandleByName(rPropertyName)) + { + case PROP_NONNEGATIVE: + pResId = RID_PROPERTY_NONNEGATIVE; + break; + case PROP_INTEGER: + pResId = RID_PROPERTY_INTEGER; + break; + case PROP_TIMEOUT: + pResId = RID_PROPERTY_TIMEOUT; + break; + case PROP_ALGORITHM: + pResId = RID_PROPERTY_ALGORITHM; + break; + default: + break; + } + return SwarmSolver::getResourceString(pResId); + } + + // XServiceInfo + virtual OUString SAL_CALL getImplementationName() override + { + return "com.sun.star.comp.Calc.SwarmSolver"; + } + + sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override + { + return cppu::supportsService(this, rServiceName); + } + + uno::Sequence SAL_CALL getSupportedServiceNames() override + { + return { "com.sun.star.sheet.Solver" }; + } + +private: + void applyVariables(std::vector const& rVariables); + bool doesViolateConstraints(); + +public: + double calculateFitness(std::vector const& rVariables); + size_t getDimensionality() const; + void initializeVariables(std::vector& rVariables, std::mt19937& rGenerator); + double clampVariable(size_t nVarIndex, double fValue); + double boundVariable(size_t nVarIndex, double fValue); +}; +} + +OUString SwarmSolver::getResourceString(const char* pId) +{ + if (!pId) + return OUString(); + + return Translate::get(pId, Translate::Create("scc")); +} + +uno::Reference SwarmSolver::getCell(const table::CellAddress& rPosition) +{ + uno::Reference xSheets(mxDocument->getSheets(), uno::UNO_QUERY); + uno::Reference xSheet(xSheets->getByIndex(rPosition.Sheet), + uno::UNO_QUERY); + return xSheet->getCellByPosition(rPosition.Column, rPosition.Row); +} + +void SwarmSolver::setValue(const table::CellAddress& rPosition, double fValue) +{ + getCell(rPosition)->setValue(fValue); +} + +double SwarmSolver::getValue(const table::CellAddress& rPosition) +{ + return getCell(rPosition)->getValue(); +} + +IMPLEMENT_FORWARD_XINTERFACE2(SwarmSolver, SwarmSolver_Base, OPropertyContainer) +IMPLEMENT_FORWARD_XTYPEPROVIDER2(SwarmSolver, SwarmSolver_Base, OPropertyContainer) + +void SwarmSolver::applyVariables(std::vector const& rVariables) +{ + for (sal_Int32 i = 0; i < maVariables.getLength(); ++i) + { + setValue(maVariables[i], rVariables[i]); + } +} + +double SwarmSolver::calculateFitness(std::vector const& rVariables) +{ + applyVariables(rVariables); + + if (doesViolateConstraints()) + return std::numeric_limits::lowest(); + + double x = getValue(maObjective); + + if (mbMaximize) + return x; + else + return -x; +} + +void SwarmSolver::initializeVariables(std::vector& rVariables, std::mt19937& rGenerator) +{ + int nTry = 1; + bool bConstraintsOK = false; + + while (!bConstraintsOK && nTry < 10) + { + size_t noVariables(maVariables.getLength()); + + rVariables.resize(noVariables); + + for (size_t i = 0; i < noVariables; ++i) + { + Bound const& rBound = maBounds[i]; + if (mbInteger) + { + sal_Int64 intLower(rBound.lower); + sal_Int64 intUpper(rBound.upper); + std::uniform_int_distribution random(intLower, intUpper); + rVariables[i] = double(random(rGenerator)); + } + else + { + std::uniform_real_distribution random(rBound.lower, rBound.upper); + rVariables[i] = random(rGenerator); + } + } + + applyVariables(rVariables); + + bConstraintsOK = !doesViolateConstraints(); + nTry++; + } +} + +double SwarmSolver::clampVariable(size_t nVarIndex, double fValue) +{ + Bound const& rBound = maBounds[nVarIndex]; + double fResult = std::max(std::min(fValue, rBound.upper), rBound.lower); + + if (mbInteger) + return std::trunc(fResult); + + return fResult; +} + +double SwarmSolver::boundVariable(size_t nVarIndex, double fValue) +{ + Bound const& rBound = maBounds[nVarIndex]; + // double fResult = std::max(std::min(fValue, rBound.upper), rBound.lower); + double fResult = fValue; + while (fResult < rBound.lower || fResult > rBound.upper) + { + if (fResult < rBound.lower) + fResult = rBound.upper - (rBound.lower - fResult); + if (fResult > rBound.upper) + fResult = (fResult - rBound.upper) + rBound.lower; + } + + if (mbInteger) + return std::trunc(fResult); + + return fResult; +} + +size_t SwarmSolver::getDimensionality() const { return maVariables.getLength(); } + +bool SwarmSolver::doesViolateConstraints() +{ + for (const sheet::SolverConstraint& rConstraint : maNonBoundedConstraints) + { + double fLeftValue = getValue(rConstraint.Left); + double fRightValue = 0.0; + + table::CellAddress aCellAddress; + + if (rConstraint.Right >>= aCellAddress) + { + fRightValue = getValue(aCellAddress); + } + else if (rConstraint.Right >>= fRightValue) + { + // empty + } + else + { + return false; + } + + sheet::SolverConstraintOperator eOp = rConstraint.Operator; + switch (eOp) + { + case sheet::SolverConstraintOperator_LESS_EQUAL: + { + if (fLeftValue > fRightValue) + return true; + } + break; + case sheet::SolverConstraintOperator_GREATER_EQUAL: + { + if (fLeftValue < fRightValue) + return true; + } + break; + case sheet::SolverConstraintOperator_EQUAL: + { + if (!rtl::math::approxEqual(fLeftValue, fRightValue)) + return true; + } + break; + default: + break; + } + } + return false; +} + +namespace +{ +template class SwarmRunner +{ +private: + SwarmAlgorithm& mrAlgorithm; + double mfTimeout; + + static constexpr size_t mnPopulationSize = 40; + static constexpr int constNumberOfGenerationsWithoutChange = 50; + + std::chrono::high_resolution_clock::time_point maStart; + std::chrono::high_resolution_clock::time_point maEnd; + +public: + SwarmRunner(SwarmAlgorithm& rAlgorithm) + : mrAlgorithm(rAlgorithm) + , mfTimeout(5000) + { + } + + void setTimeout(double fTimeout) { mfTimeout = fTimeout; } + + std::vector const& solve() + { + using std::chrono::duration_cast; + using std::chrono::high_resolution_clock; + using std::chrono::milliseconds; + + mrAlgorithm.initialize(); + + maEnd = maStart = high_resolution_clock::now(); + + int nLastChange = 0; + + while ((mrAlgorithm.getGeneration() - nLastChange) < constNumberOfGenerationsWithoutChange + && duration_cast(maEnd - maStart).count() < mfTimeout) + { + bool bChange = mrAlgorithm.next(); + + if (bChange) + nLastChange = mrAlgorithm.getGeneration(); + + maEnd = high_resolution_clock::now(); + } + return mrAlgorithm.getResult(); + } +}; +} + +void SAL_CALL SwarmSolver::solve() +{ + uno::Reference xModel(mxDocument, uno::UNO_QUERY_THROW); + + maStatus.clear(); + mbSuccess = false; + if (!maVariables.getLength()) + return; + + maBounds.resize(maVariables.getLength()); + + xModel->lockControllers(); + + if (mbNonNegative) + { + for (Bound& rBound : maBounds) + rBound.lower = 0; + } + + // Determine variable bounds + for (sheet::SolverConstraint const& rConstraint : std::as_const(maConstraints)) + { + table::CellAddress aLeftCellAddress = rConstraint.Left; + sheet::SolverConstraintOperator eOp = rConstraint.Operator; + + size_t index = 0; + bool bFoundVariable = false; + for (const table::CellAddress& rVariableCell : std::as_const(maVariables)) + { + if (aLeftCellAddress == rVariableCell) + { + bFoundVariable = true; + table::CellAddress aCellAddress; + double fValue; + + if (rConstraint.Right >>= aCellAddress) + { + uno::Reference xCell = getCell(aCellAddress); + if (xCell->getType() == table::CellContentType_VALUE) + { + maBounds[index].updateBound(eOp, xCell->getValue()); + } + else + { + maNonBoundedConstraints.push_back(rConstraint); + } + } + else if (rConstraint.Right >>= fValue) + { + maBounds[index].updateBound(eOp, fValue); + } + } + index++; + } + if (!bFoundVariable) + maNonBoundedConstraints.push_back(rConstraint); + } + + std::vector aSolution; + + if (mnAlgorithm == 0) + { + DifferentialEvolutionAlgorithm aDE(*this, 50); + SwarmRunner> aEvolution(aDE); + aEvolution.setTimeout(mnTimeout); + aSolution = aEvolution.solve(); + } + else + { + ParticleSwarmOptimizationAlgorithm aPSO(*this, 100); + SwarmRunner> aSwarmSolver(aPSO); + aSwarmSolver.setTimeout(mnTimeout); + aSolution = aSwarmSolver.solve(); + } + + xModel->unlockControllers(); + + mbSuccess = true; + + maSolution.realloc(aSolution.size()); + std::copy(aSolution.begin(), aSolution.end(), maSolution.begin()); +} + +extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface* +com_sun_star_comp_Calc_SwarmSolver_get_implementation(uno::XComponentContext*, + uno::Sequence const&) +{ + return cppu::acquire(new SwarmSolver()); +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ diff --git a/sccomp/source/solver/coinmpsolver.component b/sccomp/source/solver/coinmpsolver.component new file mode 100644 index 000000000..3ddeeea4a --- /dev/null +++ b/sccomp/source/solver/coinmpsolver.component @@ -0,0 +1,16 @@ + + + + + + + + diff --git a/sccomp/source/solver/lpsolvesolver.component b/sccomp/source/solver/lpsolvesolver.component new file mode 100644 index 000000000..76e2f3bbf --- /dev/null +++ b/sccomp/source/solver/lpsolvesolver.component @@ -0,0 +1,26 @@ + + + + + + + + diff --git a/sccomp/source/solver/swarmsolver.component b/sccomp/source/solver/swarmsolver.component new file mode 100644 index 000000000..0cdd925ee --- /dev/null +++ b/sccomp/source/solver/swarmsolver.component @@ -0,0 +1,15 @@ + + + + + + + + -- cgit v1.2.3