stochastic fields on new data structure + refactoring

CMakeLists.txt

@@ -74,11 +74,11 @@ target_link_libraries(MLMC-M++ MLMC sprng SRC LIB_PS ${SUPERLU} blas lapack fftw
 #---------------------------------------------------------------------------------------#
 
 # Test Executables
-add_executable(TestCirculantEmbedding mlmc/tests/TestCirculantEmbedding.C)
-add_executable(TestRNManager mlmc/tests/TestRNManager.C)
+#add_executable(TestCirculantEmbedding mlmc/tests/TestCirculantEmbedding.C)
+#add_executable(TestRNManager mlmc/tests/TestRNManager.C)
 
 # Linking
-target_link_libraries(TestCirculantEmbedding MultilevelMonteCarlo sprng SRC SRC_Solver
-       blas lapack ${SUPERLU} fftw3 m ${GTEST_LIB})
-target_link_libraries(TestRNManager MultilevelMonteCarlo sprng fftw3 m ${GTEST_LIB})
+#target_link_libraries(TestCirculantEmbedding MLMC sprng SRC LIB_PS ${SUPERLU}
+#        blas lapack fftw3 m ${GTEST_LIB})
+#target_link_libraries(TestRNManager MLMC sprng fftw3 m ${GTEST_LIB})
 #---------------------------------------------------------------------------------------#

mlmc/conf/m++conf → mlmc/conf/m++.conf

 loadconf = elliptic.conf
 #loadconf = transport.conf
-loadconf = mlmc.conf
-loadconf = stochfield.conf
\ No newline at end of file
+loadconf = mlmc.conf
\ No newline at end of file

mlmc/conf/mlmc.conf

-Model = LinearFEM
-#Model = QuadraticFEM
+Model = LagrangeFEM
 #Model = MixedFEM
 #Model = HybridFEM
-#Model = FVFEM          # Don't forget to swith on Overlap, sign and penalty
-#Model = LinearDGFEM     # Don't forget to swith on Overlap, sign and penalty
-#Model = QuadraticDGFEM # Don't forget to swith on Overlap, sign and penalty
+#Model = DGFEM
 
 #Overlap = dG1
 #sign = 1
@@ -18,24 +15,24 @@ Problem = StochasticLaplace2D
 StochasticField = LogNormal
 #StochasticField = Gaussian
 
-Experiment = ConvergenceTest
+#Experiment = ConvergenceTest
 #Experiment = MLMCExperiment
-#Experiment = MLMCOverEpsilon
+Experiment = MLMCOverEpsilon
 
-size_init = 4
-l_init = 3 4 5 6
-M_init = 3 3 3 3
+initLevels = 3, 4, 5
+initSampleAmount = 12, 6, 3
 
-size_init = 3
-l_init = 3 4 5
-M_init = 45 15 5
+#l_init = 3,  4,  5
+#M_init = 45, 15, 5
 
 epsilon = 0.01
-size_lst = 2
-epsilon_lst = 0.05 0.01
+mcOnly = false
+epsilon_lst = 0.05, 0.01, 0.005
+
+maxLevel = 8
+pLevel = 2
+degree = 1
 
-Lmax = 9
-plevel = 2
 functional = L2
 #functional = Energy
 #funcitonal = H1
@@ -53,7 +50,7 @@ enablePython = 1
 mean = 1.0
 sigma = 1.0
 norm_p = 2
-lambda1 = 0.15
-lambda2 = 0.15
+lambda1 = 0.1
+lambda2 = 0.1
 alpha = 1.8
 evtol = 1e-10
\ No newline at end of file

mlmc/src/CMakeLists.txt

@@ -9,9 +9,8 @@ set(MLMC_SRC
         assemble/MixedEllipticAssemble.C
         assemble/HybridEllipticAssemble.C
         assemble/DGEllipticAssemble.C
-        stochfields/RNManager.C
-        stochfields/StochasticFields.C
-        stochfields/CirculantEmbedding.C
-        )
+        stochastics/RNManager.C
+        stochastics/CirculantEmbedding.C
+        problem/StochasticEllipticProblem.h stochastics/SampleGenerator.h stochastics/HybridFluxCalculator.C stochastics/HybridFluxCalculator.h)
 
 add_library(MLMC STATIC ${MLMC_SRC})

mlmc/src/MLMCMain.C

 #include "MLMCMain.h"
 
+
 using namespace std;
 
 void MLMCMain::initialize() {
     meshes = getMeshes();
     disc = getDiscretization();
-    stochFields = getStochasticFields();
+
+//    fieldSample = getFieldSampleVector();
+//    stochasticField = getStochasticField();
+
+    stochasticField = new StochasticField(meshes);
+
     problem = getStochasticProblem();
     assemble = getAssemble();
     graphs = getMatrixGraphs();
 
-    mlmc = new MultilevelMonteCarlo(l_init, M_init, meshes,
-                                    stochFields, assemble, graphs);
+    mlmc = new MultilevelMonteCarlo(initLevels, initSampleAmount, meshes,
+                                    stochasticField, assemble, graphs);
 }
 
 Meshes *MLMCMain::getMeshes() {
     if (problemName.find("1D") != string::npos)
-        return new Meshes("Line", plevel, Lmax);
+        return new Meshes("Line", pLevel, maxLevel);
     if (problemName.find("2D") != string::npos)
-        return new Meshes("UnitSquare", plevel, Lmax);
+        return new Meshes("UnitSquare", pLevel, maxLevel);
     Exit("\nMesh name not found\n")
 }
 
-Discretization *MLMCMain::getDiscretization(string _modelName_) {
-    if (_modelName_.empty()) _modelName_ = modelName;
-    if (_modelName_ == "LinearFEM")
-        return new Discretization("linear", 1, meshes->dim());
-    if (_modelName_ == "QuadraticFEM")
-        return new Discretization("quadratic", 1, meshes->dim());
-    if (_modelName_ == "MixedFEM" || _modelName_ == "HybridFEM")
+Discretization *MLMCMain::getDiscretization() {
+    if (modelName == "LagrangeFEM") {
+        if (degree == 1)
+            return new Discretization("linear", 1, meshes->dim());
+        if (degree == 2)
+            return new Discretization("serendipity", 1, meshes->dim());
+    }
+    if (modelName == "MixedFEM" || modelName == "HybridFEM")
         return new Discretization("RT0_P0", 1, meshes->dim());
-    if (_modelName_ == "FVFEM")
-        return new DGDiscretization(new DGDoF(0));
-    if (_modelName_ == "LinearDGFEM")
-        return new DGDiscretization(new DGDoF(1));
-    if (_modelName_ == "QuadraticDGFEM")
-        return new DGDiscretization(new DGDoF(2));
+    if (modelName == "DGFEM")
+        return new DGDiscretization(new DGDoF(degree));
+    if (modelName == "EGFEM")
+        return new EGDiscretization(new EGDoF(degree));
+    if (modelName == "LinearWC")
+        return nullptr;
+    if (modelName == "QuadraticWC")
+        return nullptr;
+    if (modelName == "LinearDPG")
+        return nullptr;
+    if (modelName == "QuadraticDPG")
+        return nullptr;
+    if (modelName == "DGTransport")
+        return new DGDiscretization(new DGDoF(degree));
     Exit("\nDiscretization not implemented yet\n")
 }
 
-StochasticFields *MLMCMain::getStochasticFields() {
-    return new StochasticFields(fieldName, *meshes);
-}
-
-StochasticProblem *MLMCMain::getStochasticProblem(string _problemName_) {
-    if (_problemName_.empty()) _problemName_ = problemName;
-    if (_problemName_ == "StochasticLaplace1D")
-        return new StochasticLaplace1D(*stochFields);
-    if (_problemName_ == "StochasticLaplace2D")
-        return new StochasticLaplace2D(*stochFields);
-    if (_problemName_ == "StochasticTransport1D")
-        return nullptr;
-    if (_problemName_ == "StochasticTransport2D") {
-//        Discretization *_disc_ = getDiscretization("HybridFEM");
-//        StochasticProblem *_problem_ = getStochasticProblem(
-//                "StochasticLaplace2D");
-//
-//        Assemble *hybridAssemble = getAssemble("HybridFEM",
-//                                               "StochasticLaplace2D",
-//                                               _disc_, _problem_);
-//        Vector normalFlux(graphs->fine());
-//        return new StochasticPollution2D(hybridAssemble, normalFlux, stochFields);
+Vector *MLMCMain::getFieldSampleVector() {
+    if (problemName == "StochasticLaplace1D" || "StochasticLaplace2D") {
+        MatrixGraphs cellMatrixGraphs(*meshes, dof("cell", 1));
+        return new Vector(cellMatrixGraphs.fine());
     }
+    if (problemName == "StochasticPollution1D" || "StochasticPollution2D") {
+        MatrixGraphs cellMatrixGraphs(*meshes, dof("cell", 3));
+        return new Vector(cellMatrixGraphs.fine());
+    }
+}
 
+StochasticField *MLMCMain::getStochasticField() {
+    if (problemName == "StochasticLaplace1D")
+        return new StochasticField(meshes);
+    if (problemName == "StochasticLaplace1D")
+        return new StochasticField(meshes);
+    if (problemName == "StochasticPollution1D")
+        return new StochasticVectorField(meshes);
+    if (problemName == "StochasticPollution2D")
+        return new StochasticField(meshes);
+}
 
+StochasticProblem *MLMCMain::getStochasticProblem() {
+    if (problemName == "StochasticLaplace1D")
+        return new StochasticLaplace1D();
+    if (problemName == "StochasticLaplace2D")
+        return new StochasticLaplace2D();
+    if (problemName == "StochasticPollution1D")
+        return new StochasticPollution1D();
+    if (problemName == "StochasticPollution2D")
+        return new StochasticPollution2D();
     Exit("\nStochastic problem not implemented yet\n")
-    return nullptr;
 }
 
-Assemble *MLMCMain::getAssemble(string _modelName_, string _problemName_,
-                                Discretization *_disc_,
-                                StochasticProblem *_problem_) {
-    if (_problemName_.empty()) _problemName_ = problemName;
-    if (_modelName_.empty()) _modelName_ = modelName;
-    if (_disc_ == nullptr) _disc_ = disc;
-    if (_problem_ == nullptr) _problem_ = problem;
-    if (_problemName_.find("Laplace") != string::npos) {
-        if (_modelName_ == "LinearFEM" || _modelName_ == "QuadraticFEM")
-            return new EllipticAssemble(_disc_, _problem_);
-        if (_modelName_ == "MixedFEM")
-            return new MixedEllipticAssemble(_disc_, _problem_);
-        if (_modelName_ == "HybridFEM")
-            return new HybridEllipticAssemble(_disc_, _problem_);
-        if (_modelName_ == "FVFEM" || _modelName_ == "LinearDGFEM" ||
-            _modelName_ == "QuadraticDGFEM")
-            return new DGEllipticAssemble(_disc_, _problem_);
-    } else if (_problemName_.find("Transport") != string::npos) {
-        if (_modelName_ == "FVFEM")
-            return nullptr;
-        if (_modelName_ == "LinearDGFEM")
-            return nullptr;
-        if (_modelName_ == "QuadraticDGFEM")
-            return nullptr;
+Assemble *MLMCMain::getAssemble() {
+    if (problemName.find("Laplace") != string::npos) {
+        auto ellipticProblem = dynamic_cast<StochasticEllipticProblem *>(problem);
+        if (modelName == "LagrangeFEM")
+            return new EllipticAssemble(disc, ellipticProblem);
+        if (modelName == "MixedFEM")
+            return new MixedEllipticAssemble(disc, ellipticProblem);
+        if (modelName == "HybridFEM")
+            return new HybridEllipticAssemble(disc, ellipticProblem);
+        if (modelName == "DGFEM")
+            return new DGEllipticAssemble(disc, ellipticProblem);
+    } else if (problemName.find("Pollution") != string::npos) {
+        auto transportProblem = dynamic_cast<StochasticTransportProblem *>(problem);
+        Plot plot(meshes->fine(), meshes->dim(), 2);
+        return new DGTransportAssemble(disc, transportProblem, &plot);
     }
     Exit("\nAssembling for this problem not implemented yet\n")
-    return nullptr;
 }
 
-MatrixGraphs *MLMCMain::getMatrixGraphs(string _modelName_,
-                                        Meshes *_meshes_,
-                                        Discretization *_disc_) {
-    if (_modelName_.empty()) _modelName_ = modelName;
-    if (_meshes_ == nullptr) _meshes_ = meshes;
-    if (_disc_ == nullptr) _disc_ = disc;
-    if (_modelName_ == "LinearFEM" || _modelName_ == "QuadraticFEM" ||
-        _modelName_ == "MixedFEM")
-        return new MatrixGraphs(*_meshes_, *_disc_);
-    if (_modelName_ == "HybridFEM")
-        return new MatrixGraphs(*_meshes_, dof("face", 1));
-    if (_modelName_ == "FVFEM" || _modelName_ == "LinearDGFEM" ||
-        _modelName_ == "QuadraticDGFEM")
-        return new CellMatrixGraphs(*_meshes_, *_disc_);
-    Exit("\nMatrix graph Not implemented yet\n")
-    return nullptr;
+MatrixGraphs *MLMCMain::getMatrixGraphs() {
+    if (modelName == "LagrangeFEM" || modelName == "MixedFEM")
+        return new MatrixGraphs(*meshes, *disc);
+    if (modelName == "HybridFEM")
+        return new MatrixGraphs(*meshes, dof("face", 1));
+    if (modelName == "DGFEM")
+        return new CellMatrixGraphs(*meshes, *disc);
+    Exit("\nMatrix graph not implemented yet\n")
 }
 
 void MLMCMain::run() {
     printParameters();
 
+    //Todo ConvergenceTest bool mcOnly
     if (experimentName == "ConvergenceTest") {
         headConvergenceTest();
-        mlmc->method();
-        mlmc->showMCTable();
-        mlmc->showKurtosisWarning();
-        mlmc->showExponentResults();
+        mlmc->Method();
+        mlmc->ShowMCTable();
+        mlmc->ShowKurtosisWarning();
+        mlmc->ShowExponentResults();
         if (enablePython == 1) {
             system("python3 ../tools/plot_statistics.py ConvergenceTest");
         }
     } else if (experimentName == "MLMCExperiment") {
         headMLMCExperiment();
-        mlmc->method(epsilon);
-        mlmc->showMCTable();
-        mlmc->showResultsMLMCRun(epsilon);
-        mlmc->showKurtosisWarning();
-        mlmc->showExponentResults();
+        mlmc->Method(epsilon);
+        mlmc->ShowMCTable();
+        mlmc->ShowResultsMLMCRun(epsilon);
+        mlmc->ShowKurtosisWarning();
+        mlmc->ShowExponentResults();
         if (enablePython == 1 && PPM->master()) {
             system("python3 ../tools/plot_statistics.py MLMCExperiment");
             system("python3 ../tools/plot_mlmc.py MLMCExperiment");
         }
     } else if (experimentName == "MLMCOverEpsilon") {
         headMLMCOverEpsilon();
-        mlmc->method(epsilon_lst);
-        mlmc->showMCTable();
-        mlmc->showResultsOverEpsilon(epsilon_lst);
+        mlmc->Method(epsilonList);
+        mlmc->ShowMCTable();
+        mlmc->ShowResultsOverEpsilon(epsilonList);
         if (enablePython == 1 && PPM->master()) {
             system("python3 ../tools/plot_statistics.py MLMCOverEpsilon");
             system("python3 ../tools/plot_mlmc.py MLMCOverEpsilon");
@@ -156,13 +159,13 @@ void MLMCMain::printParameters() {
     mout << "Model     \t=\t" << modelName << endl;
     mout << "Experiment\t=\t" << experimentName << endl;
     mout << "StochField\t=\t" << fieldName << endl;
-    mout << "l_init    \t=\t" << vec2str(l_init) << endl;
-    mout << "M_init    \t=\t" << vec2str(M_init) << endl;
+    mout << "initLevels\t=\t" << vec2str(initLevels) << endl;
+    mout << "initSample\t=\t" << vec2str(initSampleAmount) << endl;
     if (experimentName == "MLMCExperiment")
         mout << "eps       \t=\t" << epsilon << endl;
     if (experimentName == "MLMCOverEpsilon")
-        mout << "eps_lst   \t=\t" << vec2str(epsilon_lst) << endl;
-    mout << "Lmax      \t=\t" << Lmax << endl;
-    mout << "plevel    \t=\t" << plevel << endl;
+        mout << "eps_lst   \t=\t" << vec2str(epsilonList) << endl;
+    mout << "maxLevel  \t=\t" << maxLevel << endl;
+    mout << "pLevel    \t=\t" << pLevel << endl;
     mout << "enablePy  \t=\t" << enablePython << endl;
 }

mlmc/src/MLMCMain.h

@@ -5,47 +5,55 @@
 #include "problem/StochasticEllipticProblem.h"
 #include "problem/StochasticTransportProblem.h"
 #include "MultilevelMonteCarlo.h"
-#include "discgalerkin/DGDiscretization.h"
+#include "discretization/DGDiscretization.h"
+#include "stochastics/StochasticField.h"
+
 
 class MLMCMain {
 public:
-    int enablePython = 1;
-    double epsilon = 0.1;
-    int size_init = 3, plevel = 2, Lmax = 8, size_lst = 3;
-    vector<int> l_init = {3, 4, 5}, M_init = {12, 6, 3};
-    vector<double> epsilon_lst = {0.1, 0.05, 0.01};
     string problemName = "", modelName = "";
     string fieldName = "", experimentName = "";
 
+    int enablePython = 1;
+    double epsilon = 0.1;
+    int pLevel = 0, maxLevel = 8, degree = 0;
+    vector<int> initLevels = {3, 4, 5}, initSampleAmount = {12, 6, 3};
+    vector<double> epsilonList = {0.1, 0.05, 0.01};
+
     Meshes *meshes = nullptr;
     Discretization *disc = nullptr;
-    StochasticFields *stochFields = nullptr;
+
+    StochasticField *stochasticField = nullptr;
     StochasticProblem *problem = nullptr;
     Assemble *assemble = nullptr;
     MatrixGraphs *graphs = nullptr;
-
+    Plot *plot = nullptr;
     MultilevelMonteCarlo *mlmc = nullptr;
 
     MLMCMain() {
-        ReadConfig(Settings, "enablePython", enablePython);
-        ReadConfig(Settings, "epsilon", epsilon);
-        ReadConfig(Settings, "plevel", plevel);
-        ReadConfig(Settings, "Lmax", Lmax);
-        ReadConfig(Settings, "size_init", size_init);
-        ReadConfig(Settings, "l_init", l_init, size_init);
-        ReadConfig(Settings, "M_init", M_init, size_init);
-        ReadConfig(Settings, "size_lst", size_lst);
-        ReadConfig(Settings, "epsilon_lst", epsilon_lst, size_lst);
-        ReadConfig(Settings, "Problem", problemName);
-        ReadConfig(Settings, "Model", modelName);
-        ReadConfig(Settings, "StochasticField", fieldName);
-        ReadConfig(Settings, "Experiment", experimentName);
+        config.get("enablePython", enablePython);
+        config.get("epsilon", epsilon);
+        config.get("pLevel", pLevel);
+        config.get("maxLevel", maxLevel);
+        config.get("degree", degree);
+        config.get("initLevels", initLevels);
+        config.get("initSampleAmount", initSampleAmount);
+        config.get("epsilonList", epsilonList);
+        config.get("Problem", problemName);
+        config.get("Model", modelName);
+        config.get("StochasticField", fieldName);
+        config.get("Experiment", experimentName);
+
+        if (initSampleAmount.size() != initLevels.size()) Exit(
+            "\ninitLevels and initSampleAmount have to be of the same size.\n")
+        if (maxLevel < initLevels.back()) Exit(
+            "\nLast element of initLevels has to be smaller or equal to maxLevel.\n")
 
         initialize();
     }
 
     ~MLMCMain() {
-        delete meshes, delete disc, delete stochFields;
+        delete meshes, delete disc, delete stochasticField;
         delete problem, delete assemble, delete graphs;
         delete mlmc;
     }
@@ -54,19 +62,17 @@ public:
 
     Meshes *getMeshes();
 
-    Discretization *getDiscretization(string _modelName_ = "");
+    Discretization *getDiscretization();
+
+    Vector *getFieldSampleVector();
 
-    StochasticFields *getStochasticFields();
+    StochasticField *getStochasticField();
 
-    StochasticProblem *getStochasticProblem(string _problemName_ = "");
+    StochasticProblem *getStochasticProblem();
 
-    Assemble *getAssemble(string _modelName_ = "", string _problemName_ = "",
-                          Discretization *_disc_ = nullptr,
-                          StochasticProblem *_problem_ = nullptr);
+    Assemble *getAssemble();
 
-    MatrixGraphs *getMatrixGraphs(string _modelName_ = "",
-                                  Meshes *_meshes_ = nullptr,
-                                  Discretization *_disc_ = nullptr);
+    MatrixGraphs *getMatrixGraphs();
 
     void run();
 

mlmc/src/MultilevelMonteCarlo.C

 #include "MultilevelMonteCarlo.h"
 
+
 using namespace std;
 
-MonteCarlo *MultilevelMonteCarlo::getMonteCarlo(int l, int dM, bool baseLevel) {
+MonteCarlo *MultilevelMonteCarlo::getMonteCarlo(int l, int dM, bool onlyFineLevel) {
     auto ellipticAssemble = dynamic_cast<EllipticAssemble *>(assemble);
-//    auto transportAssemble = dynamic_cast<DGTransportAssemble *>(assemble);
+    auto transportAssemble = dynamic_cast<DGTransportAssemble *>(assemble);
     if (ellipticAssemble != nullptr)
-        return new MonteCarloElliptic(l, dM, baseLevel, meshes, stochFields,
-                                      graphs, ellipticAssemble);
-//    if (transportAssemble != nullptr)
-//        return new MonteCarloTransport(l, dM, baseLevel, meshes, stochFields,
-//                                       graphs, transportAssemble);
+        return new MonteCarloElliptic(l, dM, onlyFineLevel, meshes,
+                                      stochasticField, ellipticAssemble);
+    if (transportAssemble != nullptr)
+        return new MonteCarloTransport(l, dM, onlyFineLevel, meshes,
+                                       stochasticField, transportAssemble);
     return nullptr;
 }
 
-void MultilevelMonteCarlo::initializeMapMC() {
-    clearMapMC();
-    for (unsigned long i = 0; i < l_init.size(); i++) {
-        bool baseLevel = i == 0;
-        int l = l_init[i], M = M_init[i];
-        map_mc[l] = getMonteCarlo(l, M, baseLevel);
+void MultilevelMonteCarlo::initializeMapMonteCarlo() {
+    clearMapMonteCarlo();
+    for (unsigned long i = 0; i < initLevels.size(); i++) {
+        bool onlyFineLevel = (i == 0) || (mcOnly);
+        int l = initLevels[i], M = initSampleAmount[i];
+        mapMonteCarlo[l] = getMonteCarlo(l, M, onlyFineLevel);
     }
 }
 
-void MultilevelMonteCarlo::initializeValuesMLMC() {
+void MultilevelMonteCarlo::initializeValues() {
     levels = {}, numsamples = {};
     value = 0.0, cost = 0.0;
     alpha = 0.0, beta = 0.0, gamma = 0.0;
 }
 
-
-void MultilevelMonteCarlo::clearMapMC() {
-    for (auto &iter: map_mc) {
+void MultilevelMonteCarlo::clearMapMonteCarlo() {
+    for (auto &iter: mapMonteCarlo) {
         delete iter.second;
     }
-    map_mc.clear();
+    mapMonteCarlo.clear();
 }
 
-void MultilevelMonteCarlo::method() {
+void MultilevelMonteCarlo::Method() {
     logger->startMethodMSG();
-    for (auto &mc : map_mc)
-        mc.second->method();
+    for (auto &mc : mapMonteCarlo)
+        mc.second->Method();
     logger->endMethodMSG();
 }
 
-void MultilevelMonteCarlo::method(const double eps) {
+void MultilevelMonteCarlo::Method(const double eps) {
     logger->startMethodMSG();
     logger->logMSGV1("eps: " + to_string(eps));
     bool converged = false;
     while (!converged) {
-        for (auto &mc : map_mc)
+        for (auto &mc : mapMonteCarlo)
             if (mc.second->dM > 0)
-                mc.second->method();
+                mc.second->Method();
         estimateExponents();
-        updateNumSamples(eps);
+        updateSampleAmount(eps);
         if (checkForNewLevel()) {
             if (estimateNumericalError() > eps / sqrt(2.0))
                 appendLevel(eps);
@@ -61,23 +61,23 @@ void MultilevelMonteCarlo::method(const double eps) {
                 converged = true;
         }
     }
-    Vector u((*graphs)[map_mc.rbegin()->first - pLevel]);
+    Vector u((*graphs)[mapMonteCarlo.rbegin()->first - pLevel]);
     u = 0.0;
     wrapUpResults(u, value, cost, levels, numsamples);
     logger->endMethodMSG();
 }
 
-void MultilevelMonteCarlo::method(const vector<double> &eps_lst) {
+void MultilevelMonteCarlo::Method(const vector<double> &eps_lst) {
     logger->startMethodMSG();
 //    logger->increase_indent();
     for (auto &eps : eps_lst) {
-        initializeMapMC();
-        initializeValuesMLMC();
-        method(eps);
-        levels_vs_eps.push_back(levels);
-        numsamples_vs_eps.push_back(numsamples);
-        value_vs_eps.push_back(value);
-        cost_vs_eps.push_back(cost);
+        initializeMapMonteCarlo();
+        initializeValues();
+        Method(eps);
+        levelsOverEpsilon.push_back(levels);
+        sampleAmountOverEpsilon.push_back(numsamples);
+        valueOverEpsilon.push_back(value);
+        costOverEpsilon.push_back(cost);
     }
 //    logger->decrease_indent();
     logger->endMethodMSG();
@@ -85,15 +85,15 @@ void MultilevelMonteCarlo::method(const vector<double> &eps_lst) {
 
 void MultilevelMonteCarlo::estimateExponents(bool excludeBaseLevel) {
     vector<double> level_lst, avgs_Y, vars_Y, costs;
-    auto iter = map_mc.begin();
+    auto iter = mapMonteCarlo.begin();
     if (excludeBaseLevel)
         iter++;
 
-    for (; iter != map_mc.end(); iter++) {
+    for (; iter != mapMonteCarlo.end(); iter++) {
         level_lst.push_back((double) iter->first);
-        avgs_Y.push_back(-log2(iter->second->avg_Y));
-        vars_Y.push_back(-log2(iter->second->var_Y));
-        costs.push_back(log2(iter->second->avg_cost));
+        avgs_Y.push_back(-log2(iter->second->avgY));
+        vars_Y.push_back(-log2(iter->second->varY));