/// <summary>
/// Test on a square 2D Voronoi mesh
/// </summary>
/// <param name="Res">
/// number of randomly chosen Delaunay vertices
/// </param>
/// <param name="deg">
/// polynomial degree
/// </param>
/// <param name="NoOfLlyodsIter">
/// Number of Llyods iterations.
/// </param>
/// <param name="mirror">
/// Mirror vertices of boundary cells along boundary to approximate boundary
/// </param>
/// <param name="solver_name">
/// Name of solver to use.
/// </param>
/// <returns></returns>
public static SipControl TestVoronoi_Square(
int Res,
int deg = 1,
int NoOfLlyodsIter = 10,
bool mirror = false,
LinearSolverCode solver_name = LinearSolverCode.classic_pardiso,
Foundation.IO.IDatabaseInfo db = null)
{
return(TestGrid(new VoronoiGrids.Square(Res, NoOfLlyodsIter), deg, solver_name, db));
}
/// <summary>
/// A spherical interface in the 3D domain \f$ (-2, 2)^3 \f$.
/// </summary>
public static XdgPoisson3Control Ball3D(int pDeg, int Res, LinearSolverCode solverCode)
{
XdgPoisson3Control R = new XdgPoisson3Control();
R.ProjectName = "XdgPoisson3/Ball3D";
R.savetodb = false;
R.FieldOptions.Add("Phi", new FieldOpts()
{
Degree = 1,
SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.FieldOptions.Add("u", new FieldOpts()
{
Degree = pDeg,
SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.GridFunc = delegate() {
return(Grid3D.Cartesian3DGrid(GenericBlas.Linspace(-2, 2, Res), GenericBlas.Linspace(-2, 2, Res), GenericBlas.Linspace(-2, 2, Res)));
};
// set the level-set
R.InitialValues_Evaluators.Add("Phi", X => (X[0].Pow2() + X[1].Pow2() + X[2].Pow2()) - 1.0.Pow2());
//R.InitialValues.Add("Phi", X => X[0] + 0.1);
R.ExcactSolSupported = false;
//R.InitialValues.Add("uEx#A", X => X[1]);
//R.InitialValues.Add("uEx#B", X => X[1]);
R.InitialValues_Evaluators.Add("rhs#A", X => 1.0);
R.InitialValues_Evaluators.Add("rhs#B", X => 1.0);
R.MU_A = -1.0;
R.MU_B = -1.0;
R.xLaplaceBCs.g_Diri = ((CommonParamsBnd inp) => 0.0);
R.xLaplaceBCs.IsDirichlet = (inp => true);
R.LinearSolver.SolverCode = solverCode;//R.solverName = "direct";
R.AgglomerationThreshold = 0.1;
R.PrePreCond = MultigridOperator.Mode.DiagBlockEquilib;
R.penalty_multiplyer = 1.1;
R.ViscosityMode = XLaplace_Interface.Mode.SIP;
return(R);
}
//Base case for Voronoi Testing
static SipControl TestGrid(
VoronoiGrid grid,
int deg = 1,
LinearSolverCode solver_name = LinearSolverCode.classic_pardiso,
Foundation.IO.IDatabaseInfo db = null)
{
var R = new SipControl
{
ProjectName = "SipPoisson-Voronoi",
SessionName = "testrun"
};
R.ImmediatePlotPeriod = 1;
if (db != null)
{
R.savetodb = true;
R.SetDatabase(db);
}
R.FieldOptions.Add("T", new FieldOpts()
{
Degree = deg, SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.FieldOptions.Add("Tex", new FieldOpts()
{
Degree = deg * 2
});
R.InitialValues_Evaluators.Add("RHS", X => 1.0);
R.InitialValues_Evaluators.Add("Tex", X => X[0]);
R.ExactSolution_provided = false;
R.LinearSolver.NoOfMultigridLevels = int.MaxValue;
R.LinearSolver.SolverCode = solver_name;
R.LinearSolver.NoOfMultigridLevels = 1;
//R.TargetBlockSize = 100;
grid.SetGridAndBoundaries(R);
return(R);
}
/// <summary>
/// Solution of the system
/// <see cref="LaplaceMtx"/>*<see cref="T"/> + <see cref="LaplaceAffine"/> = <see cref="RHS"/>
/// using a black-box solver
/// </summary>
private void ClassicSolve(out double mintime, out double maxtime, out bool Converged, out int NoOfIter)
{
mintime = double.MaxValue;
maxtime = double.MinValue;
Converged = false;
NoOfIter = int.MaxValue;
for (int i = 0; i < base.Control.NoOfSolverRuns; i++)
{
// create sparse solver
// --------------------
ISparseSolver ipSolver;
LinearSolverCode solvercodes = LinearSolverCode.classic_pardiso;
switch (solvercodes)
{
case LinearSolverCode.classic_pardiso:
ipSolver = new ilPSP.LinSolvers.PARDISO.PARDISOSolver()
{
CacheFactorization = true,
UseDoublePrecision = true
};
break;
case LinearSolverCode.classic_mumps:
ipSolver = new ilPSP.LinSolvers.MUMPS.MUMPSSolver();
break;
case LinearSolverCode.classic_cg:
ipSolver = new ilPSP.LinSolvers.monkey.CG()
{
MaxIterations = 1000000,
Tolerance = 1.0e-10,
DevType = ilPSP.LinSolvers.monkey.DeviceType.Cuda
};
break;
default:
throw new ArgumentException();
}
ipSolver.DefineMatrix(LaplaceMtx);
// call solver
// -----------
T.Clear();
Console.WriteLine("RUN " + i + ": solving system...");
var RHSvec = RHS.CoordinateVector.ToArray();
BLAS.daxpy(RHSvec.Length, -1.0, this.LaplaceAffine, 1, RHSvec, 1);
T.Clear();
SolverResult solRes = ipSolver.Solve(T.CoordinateVector, RHSvec);
mintime = Math.Min(solRes.RunTime.TotalSeconds, mintime);
maxtime = Math.Max(solRes.RunTime.TotalSeconds, maxtime);
Converged = solRes.Converged;
NoOfIter = solRes.NoOfIterations;
Console.WriteLine("Pardiso phase 11: " + ilPSP.LinSolvers.PARDISO.PARDISOSolver.Phase_11.Elapsed.TotalSeconds);
Console.WriteLine("Pardiso phase 22: " + ilPSP.LinSolvers.PARDISO.PARDISOSolver.Phase_22.Elapsed.TotalSeconds);
Console.WriteLine("Pardiso phase 33: " + ilPSP.LinSolvers.PARDISO.PARDISOSolver.Phase_33.Elapsed.TotalSeconds);
ipSolver.Dispose();
}
}
/// <summary>
/// A circular interface in the 2D domain \f$ (3/2,3/2)^2 \f$.
/// </summary>
public static XdgPoisson3Control Circle(int Resolution = 16, int p = 1, string DBPath = null, LinearSolverCode solver = LinearSolverCode.classic_pardiso)
{
XdgPoisson3Control R = new XdgPoisson3Control();
R.ProjectName = "XdgPoisson3/Circle";
if (DBPath == null)
{
R.savetodb = false;
}
else
{
R.savetodb = false;
R.DbPath = DBPath;
}
R.FieldOptions.Add("Phi", new FieldOpts()
{
Degree = p,
SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.FieldOptions.Add("u", new FieldOpts()
{
Degree = p,
SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.GridFunc = delegate() {
return(Grid2D.Cartesian2DGrid(GenericBlas.Linspace(-1.5, 1.5, Resolution), GenericBlas.Linspace(-1.5, 1.5, Resolution)));
};
double RADIUS = 0.8;
R.InitialValues_Evaluators.Add("Phi", X => - X[0].Pow2() - X[1].Pow2() + (RADIUS).Pow2());
R.ExcactSolSupported = false;
R.InitialValues_Evaluators.Add("uEx#A", X => 0.0);
R.InitialValues_Evaluators.Add("uEx#B", X => 0.0);
R.InitialValues_Evaluators.Add("u#A", X => 0.0);
R.InitialValues_Evaluators.Add("u#B", X => 0.0);
R.InitialValues_Evaluators.Add("rhs#A", X => + 1.0);
R.InitialValues_Evaluators.Add("rhs#B", X => + 1.0);
R.MU_A = -1.0;
R.MU_B = -1000.0;
R.xLaplaceBCs.g_Diri = (X => 0.0);
R.xLaplaceBCs.IsDirichlet = (inp => true);
R.LinearSolver.SolverCode = solver;
R.LinearSolver.SolverCode = LinearSolverCode.exp_softpcg_mg;
R.dtMax = 0.1;
R.dtMin = 0.1;
R.NoOfTimesteps = 10;
R.Endtime = 100000.0;
R.AgglomerationThreshold = 0.1;
R.PrePreCond = MultigridOperator.Mode.SymPart_DiagBlockEquilib_DropIndefinite;
R.LinearSolver.NoOfMultigridLevels = 5;
return(R);
}
/// <summary>
/// A circular interface in the 2D domain \f$ (3/2,3/2)^2 \f$.
/// </summary>
public static XdgPoisson3Control Circle(int Resolution = 16, int p = 1, string DBPath = null, LinearSolverCode solver = LinearSolverCode.classic_pardiso)
{
//BoSSS.Application.XdgPoisson3.HardCodedControl.Circle(Resolution: 8);
XdgPoisson3Control R = new XdgPoisson3Control();
R.ProjectName = "XdgPoisson3/Circle";
if (DBPath == null)
{
R.savetodb = false;
}
else
{
R.savetodb = false;
R.DbPath = DBPath;
}
R.SetDGdegree(p);
R.GridFunc = delegate() {
return(Grid2D.Cartesian2DGrid(GenericBlas.Linspace(-1.5, 1.5, Resolution + 1), GenericBlas.Linspace(-1.5, 1.5, Resolution + 1)));
};
double RADIUS = 0.8;
R.InitialValues_Evaluators.Add("Phi", X => - (X[0] - 0.0).Pow2() - (X[1] - 0.0).Pow2() + (RADIUS).Pow2());
R.ExcactSolSupported = false;
R.InitialValues_Evaluators.Add("uEx#A", X => 0.0);
R.InitialValues_Evaluators.Add("uEx#B", X => 0.0);
R.InitialValues_Evaluators.Add("u#A", X => 0.0);
R.InitialValues_Evaluators.Add("u#B", X => 0.0);
R.InitialValues_Evaluators.Add("rhs#A", X => + 1.0);
R.InitialValues_Evaluators.Add("rhs#B", X => + 1.0);
R.MU_A = -1.0;
R.MU_B = -1000.0;
R.xLaplaceBCs.g_Diri = (X => 0.0);
R.xLaplaceBCs.IsDirichlet = (inp => true);
R.LinearSolver.SolverCode = solver;
R.LinearSolver.SolverCode = LinearSolverCode.classic_pardiso;
R.TimesteppingMode = AppControl._TimesteppingMode.Steady;
R.AgglomerationThreshold = 0.1;
R.PrePreCond = MultigridOperator.Mode.SymPart_DiagBlockEquilib;
R.LinearSolver.NoOfMultigridLevels = 5;
return(R);
}
/// <summary>
/// Test on a Cartesian grid, with a sinusodial solution.
/// </summary>
/// <param name="Res">
/// Grid resolution
/// </param>
/// <param name="Dim">
/// spatial dimension
/// </param>
/// <param name="deg">
/// polynomial degree
/// </param>
/// <param name="solver_name">
/// Name of solver to use.
/// </param>
public static SipControl TestCartesian2(int Res, int Dim, LinearSolverCode solver_name = LinearSolverCode.exp_Kcycle_schwarz, int deg = 5)
{
//BoSSS.Application.SipPoisson.SipHardcodedControl.TestCartesian2(8,3,deg:2)
if (Dim != 2 && Dim != 3)
{
throw new ArgumentOutOfRangeException();
}
var R = new SipControl();
R.ProjectName = "ipPoison/cartesian";
R.savetodb = false;
R.FieldOptions.Add("T", new FieldOpts()
{
Degree = deg, SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.FieldOptions.Add("Tex", new FieldOpts()
{
Degree = deg + 2
});
R.InitialValues_Evaluators.Add("RHS", X => - Math.Sin(X[0]));
R.InitialValues_Evaluators.Add("Tex", X => Math.Sin(X[0]));
R.ExactSolution_provided = true;
R.LinearSolver.NoOfMultigridLevels = int.MaxValue;
R.LinearSolver.SolverCode = solver_name;
// exp_Kcycle_schwarz
// exp_gmres_levelpmg
#if DEBUG
// For testing in DEBUG mode, this setting enforces the use
// of many multigrid-levels. In 2D, the examples are so small that
R.LinearSolver.TargetBlockSize = 100;
#endif
R.GridFunc = delegate() {
GridCommons grd = null;
if (Dim == 2)
{
double[] xNodes = GenericBlas.Linspace(0, 10, Res * 5 + 1);
double[] yNodes = GenericBlas.SinLinSpacing(-1, +1, 0.6, Res + 1);
grd = Grid2D.Cartesian2DGrid(xNodes, yNodes);
}
else if (Dim == 3)
{
double[] xNodes = GenericBlas.Linspace(0, 10, Res * 5 + 1);
//double[] yNodes = GenericBlas.SinLinSpacing(-1, +1, 0.6, Res + 1);
//double[] zNodes = GenericBlas.SinLinSpacing(-1, +1, 0.6, Res + 1);
double[] yNodes = GenericBlas.Linspace(-1, +1, Res + 1);
double[] zNodes = GenericBlas.Linspace(-1, +1, Res + 1);
grd = Grid3D.Cartesian3DGrid(xNodes, yNodes, zNodes);
}
else
{
throw new NotSupportedException();
}
grd.EdgeTagNames.Add(1, BoundaryType.Dirichlet.ToString());
grd.EdgeTagNames.Add(2, BoundaryType.Neumann.ToString());
grd.DefineEdgeTags(delegate(double[] X) {
byte ret;
double x = X[0];
if (Math.Abs(x - 0.0) <= 1.0e-8)
{
ret = 1; // Dirichlet
}
else
{
ret = 2; // Neumann
}
return(ret);
});
return(grd);
};
R.AddBoundaryValue(BoundaryType.Dirichlet.ToString(), "T",
delegate(double[] X) {
double x = X[0], y = X[1];
return(Math.Sin(x));
//if (Math.Abs(X[0] - (0.0)) < 1.0e-8)
// return 0.0;
//throw new ArgumentOutOfRangeException();
});
R.AddBoundaryValue(BoundaryType.Neumann.ToString(), "T",
delegate(double[] X) {
double x = X[0], y = X[1], z = X.Length > 2 ? X[2] : 0.0;
if (Math.Abs(y - 1.0) < 1.0e-8 || Math.Abs(y + 1.0) < 1.0e-8) // y = -1, y = +1
{
return(0);
}
if (X.Length > 2 && (Math.Abs(z - 1.0) < 1.0e-8 || Math.Abs(z + 1.0) < 1.0e-8)) // z = -1, z = +1
{
return(0);
}
//if (Math.Abs(X[0] - (+10.0)) < 1.0e-8)
return(Math.Cos(x));
//throw new ArgumentOutOfRangeException();
});
return(R);
}
public static SipControl ConvergenceTest(int Res = 20, int Dim = 2, LinearSolverCode solver_name = LinearSolverCode.exp_Kcycle_schwarz, int deg = 1)
{
if (Dim != 2 && Dim != 3)
{
throw new ArgumentOutOfRangeException();
}
var R = new SipControl();
R.ProjectName = "ipPoison/cartesian";
R.savetodb = false;
R.FieldOptions.Add("T", new FieldOpts()
{
Degree = deg, SaveToDB = FieldOpts.SaveToDBOpt.TRUE
});
R.FieldOptions.Add("Tex", new FieldOpts()
{
Degree = deg + 2
});
R.InitialValues_Evaluators.Add("RHS", X => - 1.0); // constant force i.e. gravity
R.ExactSolution_provided = false; //true;
R.LinearSolver.NoOfMultigridLevels = int.MaxValue;
R.LinearSolver.SolverCode = solver_name;
R.LinearSolver.MaxSolverIterations = 200;
R.LinearSolver.TargetBlockSize = 10000;
R.LinearSolver.MaxKrylovDim = 2000;
R.GridFunc = delegate() {
GridCommons grd = null;
if (Dim == 2)
{
double[] xNodes = GenericBlas.Linspace(-10, 10, Res * 5 + 1);
double[] yNodes = GenericBlas.Linspace(-10, 10, Res * 5 + 1);
grd = Grid2D.Cartesian2DGrid(xNodes, yNodes);
}
else
{
throw new NotSupportedException();
}
grd.EdgeTagNames.Add(1, BoundaryType.Dirichlet.ToString());
grd.DefineEdgeTags(delegate(double[] X) {
byte ret;
ret = 1; // all dirichlet
return(ret);
});
return(grd);
};
R.AddBoundaryValue(BoundaryType.Dirichlet.ToString(), "T",
delegate(double[] X) {
double x = X[0], y = X[1];
return(0.0);
});
return(R);
}
