Ejemplo n.º 1
0
        public void Solve()
        {
            mb        = new MeshBuilder(Info.Points.Length);
            NodeCount = mb.Build(Info.Mesh);

            mb.BuildBoundary(Info.FB);
            mb.BuildBoundary(Info.SB);

            pb = new PortraitBuilder(NodeCount, Info.Mesh);
            MatrixPortrait mp = new MatrixPortrait();

            pb.Build(mp);

            IMatrix A = new SymmetricSparseMatrix(NodeCount, mp);

            double[] B = new double[NodeCount];

            SLAEInfo slaeinfo = new SLAEInfo();

            slaeinfo.Points = Info.Points;
            slaeinfo.Mesh   = Info.Mesh;
            slaeinfo.F      = Info.F;

            sb = new SLAEBuilder(slaeinfo);
            sb.Build(A, B);
            sb.AddBoundary(A, B, Info.FB);
            sb.AddBoundary(A, B, Info.SB);

            Weights = Solver.Solve(A, B);
        }
Ejemplo n.º 2
0
        public void Solve()
        {
            mb        = new MeshBuilder(Info.Points.Length);
            NodeCount = mb.Build(Info.Mesh);

            mb.BuildBoundary(Info.FB);

            pb = new PortraitBuilder(NodeCount, Info.Mesh);
            MatrixPortrait mp = new MatrixPortrait();

            pb.Build(mp);

            IMatrix A = new SymmetricSparseMatrix(NodeCount, mp);

            double[] B = new double[NodeCount];

            SLAEInfoDelta slaeinfo = new SLAEInfoDelta();

            slaeinfo.Points           = Info.Points;
            slaeinfo.Mesh             = Info.Mesh;
            slaeinfo.R0               = Info.R0;
            slaeinfo.Z0               = Info.Z0;
            slaeinfo.DeltaCoefficient = Info.DeltaCoefficient;

            sb = new SLAEBuilderDelta(slaeinfo);
            sb.Build(A, B);
            sb.AddBoundary(A, B, Info.FB);

            Console.WriteLine("Start Solving SLAE");
            Weights = Solver.Solve(A, B);
        }
Ejemplo n.º 3
0
        public void Solve()
        {
            Problem problem = new Problem(new ProblemInfo {
                Mesh = LinearMesh, SolverType = Solver.SolverType
            });

            problem.Solve();

            Q = problem.Q;

            MatrixPortrait MP = new MatrixPortrait();

            PB.Build(MP);
            IMatrix A = new SymmetricSparseMatrix(Mesh.NodeCount, MP);

            double[] B = new double[Mesh.NodeCount];

            CurrentIter = 0;
            Diff        = 1.0;
            QDiff       = 1.0;
            while (CurrentIter < MaxIters && Diff >= Eps && QDiff >= Delta)
            {
                // SLAE Solution
                NSB.Build(A, B, Q);
                prevQ = Q;
                Q     = Solver.Solve(A, B);

                QDiff = VectorUtils.RelativeError(prevQ, Q);

                A.Clear();
                Array.Fill(B, 0.0);

                if (DoOptimization)
                {
                    // Optimization
                    double w = OptimizeQ(A, B);

                    // Calculating new Q
                    for (int i = 0; i < Q.Length; i++)
                    {
                        Q[i] = Q[i] * w + prevQ[i] * (1.0 - w);
                    }
                }

                // Calculate diff
                NSB.Build(A, B, Q);
                A.Multiply(Q, Aq);

                Diff = VectorUtils.RelativeError(Aq, B);
                CurrentIter++;

                Console.WriteLine($"Iter: {CurrentIter}, Diff: {Diff}, QDiff: {QDiff}");

                A.Clear();
                Array.Fill(B, 0.0);
                Array.Fill(Aq, 0.0);
            }
        }
Ejemplo n.º 4
0
        public void Solve()
        {
            MatrixPortrait MP = new MatrixPortrait();

            PB.Build(MP);

            IMatrix A = new SymmetricSparseMatrix(Mesh.NodeCount, MP);

            double[] B = new double[Mesh.NodeCount];

            SB.Build(A, B);

            Q = Solver.Solve(A, B);
        }
Ejemplo n.º 5
0
        public void Build(MatrixPortrait MP)
        {
            MP.IA    = new int[NodeCount + 1];
            MP.IA[0] = MP.IA[1] = 0;

            for (int i = 2; i <= NodeCount; i++)
            {
                int col = MP.IA[i - 1];
                MP.IA[i] = col + connections[i - 1].Count;
            }

            MP.JA = new int[MP.IA[NodeCount]];

            for (int i = 1, k = 0; i < NodeCount; i++)
            {
                foreach (int j in connections[i])
                {
                    MP.JA[k] = j;
                    k++;
                }
            }
        }