internal static void TestDenseSolver()
{
Skip.IfNot(TestSettings.TestMkl, TestSettings.MessageWhenSkippingMKL);
// Dense solver is too slow for a ~17.000 dof linear system, without MKL
TestSettings.RunMultiproviderTest(LinearAlgebraProviderChoice.MKL, delegate()
{
CantileverBeam benchmark = BuildCantileverBenchmark();
var solverBuilder = new DenseMatrixSolver.Builder();
DenseMatrixSolver solver = solverBuilder.BuildSolver(benchmark.Model);
//solverBuilder.DofOrderer = new DofOrderer(new NodeMajorDofOrderingStrategy(), new NullReordering()); // default
RunAnalysisAndCheck(benchmark, solver);
});
}
private static IVectorView SolveModel(Model model, ComsolMeshReader2 modelReader)
{
//var initialTemp = Vector.CreateZero(model.Nodes.Count);
double[] temp0 = new double[model.Nodes.Count];
int[] boundaryIDs = new int[] { 0 };
foreach (int boundaryID in boundaryIDs)
{
foreach (IList <Node> nodes in modelReader.triBoundaries[boundaryID])
{
foreach (Node node in nodes)
{
temp0[node.ID] = 1;
}
}
}
boundaryIDs = new int[] { 5 };
foreach (int boundaryID in boundaryIDs)
{
foreach (IList <Node> nodes in modelReader.triBoundaries[boundaryID])
{
foreach (Node node in nodes)
{
temp0[node.ID] = 0;
}
}
}
Vector initialTemp = Vector.CreateFromArray(temp0);
var builder = new DenseMatrixSolver.Builder();
builder.IsMatrixPositiveDefinite = false;
var solver = builder.BuildSolver(model);
var provider = new ProblemConvectionDiffusion(model, solver);
var childAnalyzer = new LinearAnalyzer(model, solver, provider);
//var parentAnalyzer = new BDF(model, solver, provider, childAnalyzer, 1, 10, 1, initialTemp);
var parentAnalyzer = new ConvectionDiffusionExplicitDynamicAnalyzer(model, solver, provider, childAnalyzer, 2.5e-3, 5, initialTemp);
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
return(parentAnalyzer.temperature[subdomainID]);
//return parentAnalyzer.temperature[1][subdomainID];
// return solver.LinearSystems[subdomainID].Solution;
}
private static IVectorView SolveModel(Model model)
{
double[] temp0 = new double[] { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
Vector initialTemp = Vector.CreateFromArray(temp0);
var builder = new DenseMatrixSolver.Builder();
builder.IsMatrixPositiveDefinite = false;
var solver = builder.BuildSolver(model);
//var solver = new DenseMatrixSolver.Builder().BuildSolver(model);
//Gmres solver = (new DenseMatrixSolver.Builder()).BuildSolver(model);
var provider = new ProblemConvectionDiffusion3(model, solver);
var childAnalyzer = new LinearAnalyzer(model, solver, provider);
var parentAnalyzer = new BDF(model, solver, provider, childAnalyzer, 1, 5, 6, initialTemp);
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
//return solver.LinearSystems[subdomainID].Solution;
return(parentAnalyzer.temperature[5][subdomainID]);
}
public void CantileverShellBenchmark()
{
Model model = new Model();
var filename = "CantileverShell";
string filepath = $"..\\..\\..\\MGroup.IGA.Tests\\InputFiles\\{filename}.iga";
IgaFileReader modelReader = new IgaFileReader(model, filepath);
modelReader.CreateTSplineShellsModelFromFile();
model.PatchesDictionary[0].Material = new ElasticMaterial2D(StressState2D.PlaneStress)
{
PoissonRatio = 0.0,
YoungModulus = 100
};
model.PatchesDictionary[0].Thickness = 1;
foreach (var controlPoint in model.ControlPointsDictionary.Values.Where(cp => cp.X < 3))
{
model.ControlPointsDictionary[controlPoint.ID].Constraints.Add(new Constraint()
{
DOF = StructuralDof.TranslationX
});
model.ControlPointsDictionary[controlPoint.ID].Constraints.Add(new Constraint()
{
DOF = StructuralDof.TranslationY
});
model.ControlPointsDictionary[controlPoint.ID].Constraints.Add(new Constraint()
{
DOF = StructuralDof.TranslationZ
});
}
foreach (var controlPoint in model.ControlPointsDictionary.Values.Where(cp => cp.X > 49.8))
{
model.Loads.Add(new Load()
{
Amount = -0.5,
Node = model.ControlPointsDictionary[controlPoint.ID],
DOF = StructuralDof.TranslationZ
});
}
var solverBuilder = new DenseMatrixSolver.Builder();
solverBuilder.DofOrderer = new DofOrderer(
new NodeMajorDofOrderingStrategy(), new NullReordering());
ISolver solver = solverBuilder.BuildSolver(model);
// Structural problem provider
var provider = new ProblemStructural(model, solver);
// Linear static analysis
var childAnalyzer = new LinearAnalyzer(model, solver, provider);
var parentAnalyzer = new StaticAnalyzer(model, solver, provider, childAnalyzer);
// Run the analysis
parentAnalyzer.Initialize();
parentAnalyzer.Solve();
//var paraview = new ParaviewTsplineShells(model, solver.LinearSystems[0].Solution, filename);
//paraview.CreateParaviewFile();
var expectedSolutionVector = Vector.CreateFromArray(new double[]
{
0, 0, -306.122431, 0, 0, -1552.478121, 0, 0, -3454.810388, 0, 0, -5881.924153, 0, 0, -8702.62361, 0, 0,
-11785.71439, 0, 0, -13928.57064, 0, 0, -15000.0008, 0, 0, -306.1224369, 0, 0, -1552.47811, 0, 0,
-3454.810407, 0, 0, -5881.924117, 0, 0, -8702.623683, 0, 0, -11785.71423, 0, 0, -13928.57093, 0, 0,
-15000.00025, 0, 0, -306.1224493, 0, 0, -1552.478088, 0, 0, -3454.810449, 0, 0, -5881.924038, 0, 0,
-8702.623837, 0, 0, -11785.71389, 0, 0, -13928.57157, 0, 0, -14999.99909, 0, 0, -306.1224494, 0, 0,
-1552.478088, 0, 0, -3454.810449, 0, 0, -5881.924038, 0, 0, -8702.623837, 0, 0, -11785.71389, 0, 0,
-13928.57157, 0, 0, -14999.99909, 0, 0, -306.1224369, 0, 0, -1552.47811, 0, 0, -3454.810407, 0, 0,
-5881.924117, 0, 0, -8702.623683, 0, 0, -11785.71423, 0, 0, -13928.57093, 0, 0, -15000.00025, 0, 0,
-306.122431, 0, 0, -1552.478121, 0, 0, -3454.810388, 0, 0, -5881.924154, 0, 0, -8702.62361, 0, 0,
-11785.71439, 0, 0, -13928.57064, 0, 0, -15000.0008
});
for (int i = 0; i < expectedSolutionVector.Length; i++)
{
Assert.True(Utilities.AreValuesEqual(expectedSolutionVector[i], solver.LinearSystems[0].Solution[i],
1e-8));
}
}
