public static void CellwiseSubSelection( [Values(SelectionType.all_combined, SelectionType.degrees, SelectionType.species, SelectionType.variables)] SelectionType SType ) { Utils.TestInit((int)SType); Console.WriteLine("SubSelection({0})", SType); //Arrange --- extracts entries of matrix according to hardcoded selection int DGdegree = 2; int GridResolution = 4; var mgo = Utils.CreateTestMGOperator(XDGusage.all, DGdegree, MatrixShape.full_var_spec, GridResolution); int sampleCellA = Utils.GetIdxOfFirstBlockWith(mgo.Mapping, false); //1 species int sampleCellB = Utils.GetIdxOfFirstBlockWith(mgo.Mapping, true); //2 species BlockMsrMatrix compA = Utils.GetCellCompMatrix(SType, mgo, sampleCellA); BlockMsrMatrix compB = Utils.GetCellCompMatrix(SType, mgo, sampleCellB); int iBlock = sampleCellB + mgo.Mapping.AggGrid.CellPartitioning.i0; int i0 = mgo.Mapping.GetBlockI0(iBlock); var block = MultidimensionalArray.Create(mgo.Mapping.GetBlockLen(iBlock), mgo.Mapping.GetBlockLen(iBlock)); mgo.OperatorMatrix.ReadBlock(i0, i0, block); //Arrange --- setup masking, which correspond to hardcoded SubBlockSelector sbsA = new SubBlockSelector(mgo.Mapping); sbsA.GetDefaultSelection(SType, sampleCellA); // single spec BlockMask maskA = new BlockMask(sbsA, null); SubBlockSelector sbsB = new SubBlockSelector(mgo.Mapping); sbsB.GetDefaultSelection(SType, sampleCellB); // double spec BlockMask maskB = new BlockMask(sbsB, null); //Arrange --- some time measurement Stopwatch stw = new Stopwatch(); stw.Reset(); //Act --- subblock extraction stw.Start(); var blocksA = maskA.GetDiagonalBlocks(mgo.OperatorMatrix, false, false); var blocksB = maskB.GetDiagonalBlocks(mgo.OperatorMatrix, false, false); stw.Stop(); //Assert --- Assert.IsTrue(blocksA.Length == 1); Assert.IsTrue(blocksB.Length == 1); Assert.IsTrue(compA.RowPartitioning.LocalLength == blocksA[0].GetLength(0)); Assert.IsTrue(compB.RowPartitioning.LocalLength == blocksB[0].GetLength(0)); //Assert --- compare masking of single spec cell Debug.Assert(compA.InfNorm() != 0.0); compA.AccBlock(0, 0, -1.0, blocksA[0]); Assert.IsTrue(compA.InfNorm() == 0.0); //Assert --- compare masking of double spec cell Debug.Assert(compB.InfNorm() != 0.0); compB.AccBlock(0, 0, -1.0, blocksB[0]); Assert.IsTrue(compB.InfNorm() == 0.0, String.Format("proc{0}: not fulfilled at block {1}", mgo.Mapping.MpiRank, sampleCellB)); }
public static void MapConsistencyTest( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder ) { //if no selection is chosen mapping should be the same as of origin //assume: indexing is right 'cause of other tests Utils.TestInit((int)UseXdg, DGOrder); Console.WriteLine("MapConsistencyTest({0},{1})", UseXdg, DGOrder); //Arrange MultigridOperator MGOp = Utils.CreateTestMGOperator(UseXdg, DGOrder); var sbs = new SubBlockSelector(MGOp.Mapping); var mask = new BlockMask(sbs); var stw = new Stopwatch(); stw.Restart(); //Act --- Create Mapping from mask stw.Start(); var submatrix = mask.GetSubBlockMatrix(MGOp.OperatorMatrix); stw.Stop(); var rowpart = submatrix._RowPartitioning; var colpart = submatrix._ColPartitioning; //Assert --- Equal Partition of mask and origin Assert.AreEqual(rowpart, colpart); Assert.IsTrue(rowpart.IsLocallyEqual(MGOp.Mapping)); }
private static void DefaultCellSplit(this SubBlockSelector sbs, bool upper, bool islocal = true) { List <int> odds = new List <int>(); List <int> even = new List <int>(); int i0, iE; if (islocal) { i0 = 0; iE = sbs.GetMapping.LocalNoOfBlocks; } else { i0 = sbs.GetMapping.LocalNoOfBlocks; iE = sbs.GetMapping.AggGrid.iLogicalCells.NoOfExternalCells + sbs.GetMapping.LocalNoOfBlocks; } for (int i = i0; i < iE; i++) { if (i % 2 != 0) { odds.Add(i); } else { even.Add(i); } } sbs.CellSelector(upper ? odds : even, false); }
public static void GetDefaultSelection(this SubBlockSelector sbs, SelectionType SType, int iCell) { SpeciesId A = ((XdgAggregationBasis)sbs.GetMapping.AggBasis[0]).UsedSpecies[0]; SpeciesId B = ((XdgAggregationBasis)sbs.GetMapping.AggBasis[0]).UsedSpecies[1]; sbs.CellSelector(iCell, false); //do not change this, selection corresponds to hardcoded masking //see GetSubIndices switch (SType) { case SelectionType.degrees: sbs.ModeSelector(p => p == 1); break; case SelectionType.species: sbs.SpeciesSelector(A); break; case SelectionType.variables: sbs.VariableSelector(1); break; case SelectionType.all_combined: sbs.ModeSelector(p => p == 1); sbs.SpeciesSelector(A); sbs.VariableSelector(1); break; } }
public static int[] AllExternalCellsSelection(this SubBlockSelector sbs) { var map = sbs.GetMapping; var extcells = GetAllExternalCells(map); sbs.CellSelector(extcells, false); return(extcells); }
public static void GetExternalRowsTest( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(4)] int Res) { //Matlabaufruf --> gesamte Matrix nach Matlab schreiben //Teilmatritzen gemäß Globalid extrahieren //Mit ExternalRows vergleichen //Die große Frage: funktioniert der batchmode connector parallel? Beim rausschreiben beachten Utils.TestInit((int)UseXdg, DGOrder); Console.WriteLine("GetExternalRowsTest({0},{1})", UseXdg, DGOrder); //Arrange --- setup mgo and mask MultigridOperator mgo = Utils.CreateTestMGOperator(UseXdg, DGOrder, MatrixShape.laplace, Res); MultigridMapping map = mgo.Mapping; BlockMsrMatrix M = mgo.OperatorMatrix; //Delete this plz ... //M.SaveToTextFileSparse("M"); //int[] A = Utils.GimmeAllBlocksWithSpec(map, 9); //int[] B = Utils.GimmeAllBlocksWithSpec(map, 18); //if (map.MpiRank == 0) { // A.SaveToTextFileDebug("ACells"); // B.SaveToTextFileDebug("BCells"); //} var selector = new SubBlockSelector(map); var dummy = new BlockMsrMatrix(map); // we are only interested in getting indices, so a dummy is sufficient var mask = new BlockMask(selector, dummy); //Arrange --- get stuff to put into matlab int[] GlobalIdx_ext = Utils.GetAllExtCellIdc(map); double[] GlobIdx = GlobalIdx_ext.Length.ForLoop(i => (double)GlobalIdx_ext[i] + 1.0); //Arrange --- get external rows by mask BlockMsrMatrix extrows = BlockMask.GetAllExternalRows(mgo.Mapping, mgo.OperatorMatrix); //Assert --- idc and rows of extrows have to be the same Assert.IsTrue(GlobIdx.Length == extrows._RowPartitioning.LocalLength); //Arrange --- get external rows by matlab var infNorm = MultidimensionalArray.Create(1, 1); using (BatchmodeConnector matlab = new BatchmodeConnector()) { //note: BatchmodeCon maybe working on proc0 but savetotxt file, etc. (I/O) is full mpi parallel //so concider this as full mpi-parallel matlab.PutSparseMatrix(M, "M"); matlab.PutSparseMatrix(extrows, "M_test"); matlab.PutVector(GlobIdx, "Idx"); matlab.Cmd(String.Format("M_ext = M(Idx, :);")); matlab.Cmd("n=norm(M_test-M_ext,inf)"); matlab.GetMatrix(infNorm, "n"); matlab.Execute(); } //Assert --- test if we actually got the right Matrix corresponding to Index Assert.IsTrue(infNorm[0, 0] == 0.0); }
/// <summary> /// returns the condition number of the full matrix /// </summary> public double CondNumMatlab() { int[] DepVars = this.VarGroup; var grd = m_map.GridDat; int NoOfCells = grd.Grid.NumberOfCells; int NoOfBdryCells = grd.GetBoundaryCells().NoOfItemsLocally_WithExternal; var Mtx = m_MultigridOp.OperatorMatrix; // Blocks and selectors // ==================== var InnerCellsMask = grd.GetBoundaryCells().Complement(); var FullSel = new SubBlockSelector(m_MultigridOp.Mapping); FullSel.VariableSelector(this.VarGroup); // Matlab // ====== double[] Full_0Vars = (new BlockMask(FullSel)).GlobalIndices.Select(i => i + 1.0).ToArray(); MultidimensionalArray output = MultidimensionalArray.Create(2, 1); string[] names = new string[] { "Full_0Vars", "Inner_0Vars" }; using (BatchmodeConnector bmc = new BatchmodeConnector()) { // if Octave should be used instead of Matlab.... // BatchmodeConnector.Flav = BatchmodeConnector.Flavor.Octave; bmc.PutSparseMatrix(Mtx, "FullMatrix"); bmc.PutVector(Full_0Vars, "Full_0Vars"); bmc.Cmd("output = ones(2,1);"); bmc.Cmd("output(1) = condest(FullMatrix(Full_0Vars,Full_0Vars));"); bmc.GetMatrix(output, "output"); bmc.Execute(false); double condestFull = output[0, 0]; Debug.Assert(condestFull.MPIEquals(), "value does not match on procs"); Console.WriteLine($"MATLAB condition number: {condestFull:0.###e-00}"); return(condestFull); } }
public static void SubSelection( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.full_var_spec, MatrixShape.full_spec, MatrixShape.full_var, MatrixShape.full)] MatrixShape MShape, [Values(4)] int Res) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape, Res); Console.WriteLine("SubSelection({0},{1},{2},{3})", UseXdg, DGOrder, MShape, Res); //Arrange --- create test matrix, MG mapping MultigridOperator mgo = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape, Res); MultigridMapping map = mgo.Mapping; BlockMsrMatrix M = mgo.OperatorMatrix; //Arrange --- get mask int[] cells = Utils.GetCellsOfOverlappingTestBlock(map); Array.Sort(cells); var sbs = new SubBlockSelector(map); sbs.CellSelector(cells, false); BlockMsrMatrix M_ext = BlockMask.GetAllExternalRows(map, M); var mask = new BlockMask(sbs, M_ext); //Arrange --- get GlobalIdxList int[] idc = Utils.GetIdcOfSubBlock(map, cells); bool[] coup = Utils.SetCoupling(MShape); var M_sub = mask.GetSubBlockMatrix(M, false, coup[0], coup[1]); var infNorm = MultidimensionalArray.Create(4, 1); int rank = map.MpiRank; using (BatchmodeConnector matlab = new BatchmodeConnector()) { double[] GlobIdx = idc.Count().ForLoop(i => (double)idc[i] + 1.0); Assert.IsTrue(GlobIdx.Length == M_sub.NoOfRows); matlab.PutSparseMatrix(M, "M"); // note: M_sub lives on Comm_Self, therefore we have to distinguish between procs ... matlab.PutSparseMatrixRankExclusive(M_sub, "M_sub"); matlab.PutVectorRankExclusive(GlobIdx, "Idx"); matlab.Cmd("M_0 = full(M(Idx_0, Idx_0));"); matlab.Cmd("M_1 = full(M(Idx_1, Idx_1));"); matlab.Cmd("M_2 = full(M(Idx_2, Idx_2));"); matlab.Cmd("M_3 = full(M(Idx_3, Idx_3));"); matlab.Cmd("n=[0; 0; 0; 0];"); matlab.Cmd("n(1,1)=norm(M_0-M_sub_0,inf);"); matlab.Cmd("n(2,1)=norm(M_1-M_sub_1,inf);"); matlab.Cmd("n(3,1)=norm(M_2-M_sub_2,inf);"); matlab.Cmd("n(4,1)=norm(M_3-M_sub_3,inf);"); matlab.GetMatrix(infNorm, "n"); matlab.Execute(); } Assert.IsTrue(infNorm[rank, 0] == 0.0); }
public static void SplitVectorOperations( XDGusage UseXdg, int DGOrder, MatrixShape MShape ) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("SplitVectorOperations({0},{1},{2})", UseXdg, DGOrder, MShape); //matrix Erzeugung wie in ExtractDiagonalCellBlocks... //Auf der HierarchieEbene, auf der Kopplung ausgesetzt wird kann Auswahl vorgenommen werden //bei var: 0 / 1, bei DG: <=1 / >1, bei spec: A / B, bei Cells: odd / even //accumulierte Teilergebnisse sind dann == fullM*fullX var mop = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape); var map = mop.Mapping; double[] Vec = Utils.GetRandomVector(mop.Mapping.LocalLength); //Arrange --- setup masking SubBlockSelector sbsA = new SubBlockSelector(map); sbsA.SetDefaultSplitSelection(MShape, true); BlockMask maskA = new BlockMask(sbsA, null); SubBlockSelector sbsB = new SubBlockSelector(map); sbsB.SetDefaultSplitSelection(MShape, false); BlockMask maskB = new BlockMask(sbsB, null); double[] VecAB = new double[Vec.Length]; //Arrange --- some time measurement Stopwatch stw = new Stopwatch(); stw.Reset(); //Act --- stw.Start(); var VecA = maskA.GetSubVec(Vec); var VecB = maskB.GetSubVec(Vec); maskA.AccSubVec(VecA, VecAB); maskB.AccSubVec(VecB, VecAB); stw.Stop(); Debug.Assert(Vec.L2Norm() != 0); double fac = ((MShape == MatrixShape.full_var || MShape == MatrixShape.diagonal_var) && UseXdg == XDGusage.none) ? -2.0 : -1.0; VecAB.AccV(fac, Vec); //Assert --- are extracted blocks and Assert.IsTrue(VecAB.L2Norm() == 0.0, String.Format("L2Norm neq 0!")); }
public static void VectorSplitOperation( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.full_var_spec, MatrixShape.full_spec, MatrixShape.full)] MatrixShape MShape, [Values(4)] int Res) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape, Res); Console.WriteLine("VectorSplitOperation({0},{1},{2},{3})", UseXdg, DGOrder, MShape, Res); //Arrange --- create test matrix, MG mapping MultigridOperator mgo = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape, Res); MultigridMapping map = mgo.Mapping; BlockMsrMatrix M = mgo.OperatorMatrix; BlockMsrMatrix M_ext = BlockMask.GetAllExternalRows(map, M); double[] Vec = Utils.GetRandomVector(M_ext.RowPartitioning.LocalLength); //Arrange --- setup masking SubBlockSelector sbsA = new SubBlockSelector(map); sbsA.SetDefaultSplitSelection(MShape, true, false); BlockMask maskA = new BlockMask(sbsA, M_ext); SubBlockSelector sbsB = new SubBlockSelector(map); sbsB.SetDefaultSplitSelection(MShape, false, false); BlockMask maskB = new BlockMask(sbsB, M_ext); double[] VecAB = new double[Vec.Length]; //Arrange --- some time measurement Stopwatch stw = new Stopwatch(); stw.Reset(); //Act --- stw.Start(); var VecA = maskA.GetSubVec(Vec, new double[0]); var VecB = maskB.GetSubVec(Vec, new double[0]); maskA.AccSubVec(VecA, VecAB, new double[0]); maskB.AccSubVec(VecB, VecAB, new double[0]); stw.Stop(); Debug.Assert(Vec.L2Norm() != 0); double fac = ((MShape == MatrixShape.full_var || MShape == MatrixShape.diagonal_var) && UseXdg == XDGusage.none) ? -2.0 : -1.0; VecAB.AccV(fac, Vec); //Assert --- are extracted blocks and Assert.IsTrue(VecAB.L2Norm() == 0.0, String.Format("L2Norm neq 0!")); }
private static void DefaultVarSplit(this SubBlockSelector sbs, bool upper) { sbs.VariableSelector(upper ? 0 : 1); int NoOfVar = sbs.GetMapping.NoOfVariables; int[] OtherVars = (NoOfVar - 1).ForLoop(i => i + 1); if (upper) { sbs.VariableSelector(0); } else { sbs.VariableSelector(OtherVars); } }
public static void SubSelection( [Values(SelectionType.all_combined, SelectionType.degrees, SelectionType.species, SelectionType.variables)] SelectionType SType ) { Utils.TestInit((int)SType); Console.WriteLine("SubSelection({0})", SType); //Arrange --- extracts entries of matrix according to hardcoded selection int DGdegree = 2; int GridResolution = 4; var mgo = Utils.CreateTestMGOperator(XDGusage.all, DGdegree, MatrixShape.full_var_spec, GridResolution); int sampleCellA = Utils.GetIdxOfFirstBlockWith(mgo.Mapping, false); //1 species int sampleCellB = Utils.GetIdxOfFirstBlockWith(mgo.Mapping, true); //2 species BlockMsrMatrix compA = Utils.GetCellCompMatrix(SType, mgo, sampleCellA); BlockMsrMatrix compB = Utils.GetCellCompMatrix(SType, mgo, sampleCellB); //Arrange --- setup masking, which correspond to hardcoded SubBlockSelector sbsA = new SubBlockSelector(mgo.Mapping); sbsA.GetDefaultSelection(SType, sampleCellA); // single spec BlockMask maskA = new BlockMask(sbsA, null); SubBlockSelector sbsB = new SubBlockSelector(mgo.Mapping); sbsB.GetDefaultSelection(SType, sampleCellB); // double spec BlockMask maskB = new BlockMask(sbsB, null); //Arrange --- stop the watch Stopwatch stw = new Stopwatch(); stw.Reset(); //Act --- get subblocks stw.Start(); BlockMsrMatrix subA = maskA.GetSubBlockMatrix(mgo.OperatorMatrix); BlockMsrMatrix subB = maskB.GetSubBlockMatrix(mgo.OperatorMatrix); stw.Stop(); //Assert --- compare masking of single spec cell Debug.Assert(compA.InfNorm() != 0.0); subA.Acc(-1.0, compA); Assert.IsTrue(subA.InfNorm() == 0.0); //Assert --- compare masking of double spec cell Debug.Assert(compB.InfNorm() != 0.0); subB.Acc(-1.0, compB); Assert.IsTrue(subB.InfNorm() == 0.0); }
public static void CellBlockVectorOperations( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.diagonal, MatrixShape.diagonal_var, MatrixShape.diagonal_spec, MatrixShape.diagonal_var_spec)] MatrixShape MShape ) { //matrix Erzeugung wie in ExtractDiagonalCellBlocks... //Auf der HierarchieEbene, auf der Kopplung ausgesetzt wird kann Auswahl vorgenommen werden //bei var: 0 / 1, bei DG: <=1 / >1, bei spec: A / B, bei Cells: odd / even //accumulierte Teilergebnisse sind dann == fullM*fullX Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("CellBlockVectorOperations({0},{1},{2})", UseXdg, DGOrder, MShape); var mop = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape); var map = mop.Mapping; double[] Vec = Utils.GetRandomVector(mop.Mapping.LocalLength); //Arrange --- setup masking SubBlockSelector SBS = new SubBlockSelector(map); BlockMask mask = new BlockMask(SBS, null); //Arrange --- some time measurement Stopwatch stw = new Stopwatch(); stw.Reset(); //Assert --- all diagonal blocks are extracted //Assert.IsTrue(blocks.Length == map.LocalNoOfBlocks); double[] Vec_col = new double[map.LocalLength]; for (int i = 0; i < map.LocalNoOfBlocks; i++) { stw.Start(); double[] Vec_i = mask.GetSubVecOfCell(Vec, i); mask.AccSubVecOfCell(Vec_i, i, Vec_col); stw.Stop(); } Vec_col.AccV(-1.0, Vec); //Assert --- are extracted blocks and Assert.IsTrue(Vec_col.L2Norm() == 0.0, String.Format("L2Norm neq 0!")); }
private static void DefaultSpeciesSplit(this SubBlockSelector sbs, bool upper) { if (sbs.GetMapping.AggBasis[0] is XdgAggregationBasis) { SpeciesId[] SIdc = ((XdgAggregationBasis)sbs.GetMapping.AggBasis[0]).UsedSpecies; SpeciesId[] OtherSpec = (SIdc.Length - 1).ForLoop(i => SIdc[i + 1]); if (upper) { sbs.SpeciesSelector(SIdc[0]); } else { sbs.SpeciesSelector(OtherSpec); } } else { throw new NotSupportedException(); } }
public static void SubMatrixExtractionWithCoupling( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.diagonal, MatrixShape.diagonal_var, MatrixShape.full_spec, MatrixShape.full_var_spec)] MatrixShape MShape ) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("ExtractSubMatrixAndIgnoreCoupling({0},{1},{2})", UseXdg, DGOrder, MShape); //Arrange --- get multigridoperator MultigridOperator MGOp = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape); BlockMsrMatrix M = MGOp.OperatorMatrix; MultigridMapping map = MGOp.Mapping; //Arrange --- setup masking SubBlockSelector SBS = new SubBlockSelector(map); BlockMask mask = new BlockMask(SBS, null); bool[] coup = Utils.SetCoupling(MShape); //Arrange --- some time measurement Stopwatch stw = new Stopwatch(); stw.Reset(); //Act --- establish submatrix stw.Start(); //var Ones = M.CloneAs(); //Ones.Clear(); //Ones.SetAll(1); //var extractOnes = mask.GetSubBlockMatrix(Ones, false, coup[0], coup[1]); var Mext = mask.GetSubBlockMatrix(M, false, coup[0], coup[1]); stw.Stop(); var Mquad = M.ConvertToQuadraticBMsr(mask.GlobalIList_Internal.ToArray(), true); Mext.Acc(-1.0, Mquad); //Assert --- Mext conains only diagonal blocks of M Assert.IsTrue(Mext.InfNorm() == 0); }
/// <summary> /// Local condition number formed by the block of each cell and its neighbors. /// </summary> /// <returns> /// one value per cell: /// - index: local cell index /// - content: condition number (one norm) of the local stencil /// </returns> public double[] StencilCondNumbers() { using (new FuncTrace()) { int J = m_map.LocalNoOfBlocks; Debug.Assert(J == m_map.GridDat.iLogicalCells.NoOfLocalUpdatedCells); var Mtx = m_MultigridOp.OperatorMatrix; Debug.Assert(Mtx._ColPartitioning.LocalNoOfBlocks == J); Debug.Assert(Mtx._RowPartitioning.LocalNoOfBlocks == J); var grd = m_MultigridOp.Mapping.AggGrid; double[] BCN = new double[J]; for (int j = 0; j < J; j++) { var LocBlk = grd.GetCellNeighboursViaEdges(j).Select(t => t.Item1).ToList(); LocBlk.Add(j); for (int i = 0; i < LocBlk.Count; i++) { if (LocBlk[i] >= J) { LocBlk.RemoveAt(i); i--; } } var Sel = new SubBlockSelector(m_MultigridOp.Mapping); Sel.VariableSelector(this.VarGroup); Sel.CellSelector(LocBlk, global: false); var Mask = new BlockMask(Sel); MultidimensionalArray[,] Blocks = Mask.GetFullSubBlocks(Mtx, ignoreSpecCoupling: false, ignoreVarCoupling: false); MultidimensionalArray FullBlock = Blocks.Cat(); BCN[j] = FullBlock.Cond('I'); } return(BCN); } }
public static void ExternalIndexTest( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(4)] int Res ) { Utils.TestInit((int)UseXdg, DGOrder); Console.WriteLine("ExternalIndexTest({0},{1})", UseXdg, DGOrder); //Arrange --- Get global index by mapping MultigridOperator MGOp = Utils.CreateTestMGOperator(UseXdg, DGOrder, MatrixShape.laplace, Res); var map = MGOp.Mapping; int[] GlobalIdxMap_ext = Utils.GetAllExtCellIdc(map); //Arrange --- Prepare stuff for mask var selector = new SubBlockSelector(map); var dummy = new BlockMsrMatrix(map); // we are only interested in getting indices, so a dummy is sufficient var stw = new Stopwatch(); stw.Reset(); //Act --- do the masking to get index lists stw.Start(); var mask = new BlockMask(selector, dummy); stw.Stop(); int[] GlobalIdxMask_ext = mask.GlobalIList_External.ToArray(); //Assert --- Idx lists are of same length Assert.IsTrue(GlobalIdxMap_ext.Length == GlobalIdxMask_ext.Length); //Assert --- Compare map and mask indices for (int iLoc = 0; iLoc < GlobalIdxMask_ext.Length; iLoc++) { Assert.IsTrue(GlobalIdxMask_ext[iLoc] == GlobalIdxMap_ext[iLoc]); } }
/// <summary> /// Local condition number for the block formed by each cell. /// </summary> /// <returns> /// one value per cell: /// - index: local cell index /// - content: condition number (one norm) of the local stencil /// </returns> public double[] BlockCondNumbers() { int J = m_map.LocalNoOfBlocks; Debug.Assert(J == m_map.GridDat.iLogicalCells.NoOfLocalUpdatedCells); var Mtx = m_MultigridOp.OperatorMatrix; Debug.Assert(Mtx._ColPartitioning.LocalNoOfBlocks == J); Debug.Assert(Mtx._RowPartitioning.LocalNoOfBlocks == J); var Sel = new SubBlockSelector(m_MultigridOp.Mapping); Sel.VariableSelector(this.VarGroup); var Mask = new BlockMask(Sel); MultidimensionalArray[] Blocks = Mask.GetDiagonalBlocks(Mtx, ignoreSpecCoupling: false, ignoreVarCoupling: false); Debug.Assert(Blocks.Length == J); double[] BCN = new double[J]; for (int j = 0; j < J; j++) { #if DEBUG int N = this.VarGroup.Sum(iVar => m_MultigridOp.Mapping.AggBasis[iVar].GetLength(j, m_MultigridOp.Degrees[iVar])); Debug.Assert(Blocks[j].NoOfCols == N); Debug.Assert(Blocks[j].NoOfRows == N); int i0 = m_MultigridOp.Mapping.GlobalUniqueIndex(this.VarGroup.Min(), j, 0); Debug.Assert(Mtx[i0, i0] == Blocks[j][0, 0]); #endif BCN[j] = Blocks[j].Cond(); } return(BCN); }
/// <summary> /// returns the condition number of the full matrix using MUMPS; /// Note: /// </summary> public double CondNumMUMPS() { using (new FuncTrace()) { int[] DepVars = this.VarGroup; var grd = m_map.GridDat; int NoOfCells = grd.Grid.NumberOfCells; int NoOfBdryCells = grd.GetBoundaryCells().NoOfItemsLocally_WithExternal; var Mtx = m_MultigridOp.OperatorMatrix; // Blocks and selectors // ==================== var InnerCellsMask = grd.GetBoundaryCells().Complement(); var FullSel = new SubBlockSelector(m_MultigridOp.Mapping); FullSel.VariableSelector(this.VarGroup); var InnerSel = new SubBlockSelector(m_MultigridOp.Mapping); InnerSel.VariableSelector(this.VarGroup); InnerSel.CellSelector(InnerCellsMask); // MUMPS condition number // ====================== double condestFullMUMPS = (new BlockMask(FullSel)).GetSubBlockMatrix(Mtx).Condest_MUMPS(); //double condestInnerMUMPS = 1.0; //if(InnerCellsMask.NoOfItemsLocally.MPISum() > 0) { // condestInnerMUMPS = (new BlockMask(InnerSel)).GetSubBlockMatrix(Mtx).Condest_MUMPS(); //} //return new[] { condestFullMUMPS, condestInnerMUMPS }; return(condestFullMUMPS); } }
public static void LocalIndexTest( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder) { Utils.TestInit((int)UseXdg, DGOrder); Console.WriteLine("LocalLIndexTest({0},{1})", UseXdg, DGOrder); //Arrange --- Get global index by mapping MultigridOperator MGOp = Utils.CreateTestMGOperator(UseXdg, DGOrder); var map = MGOp.Mapping; int[] fields = map.NoOfVariables.ForLoop(i => i); int[] GlobalIdxMap_loc = map.GetSubvectorIndices(fields); //Arrange --- Prepare stuff for mask var selector = new SubBlockSelector(map); var stw = new Stopwatch(); stw.Reset(); //Act --- do the masking to get index lists stw.Start(); var mask = new BlockMask(selector, null); stw.Stop(); int[] GlobalIdxMask_loc = mask.GlobalIList_Internal.ToArray(); //Assert --- Idx lists are of same length Assert.IsTrue(GlobalIdxMap_loc.Length == GlobalIdxMask_loc.Length); //Assert --- Compare map and mask indices for (int iLoc = 0; iLoc < GlobalIdxMask_loc.Length; iLoc++) { Assert.True(GlobalIdxMap_loc[iLoc] == GlobalIdxMask_loc[iLoc]); } }
public static void SetDefaultSplitSelection(this SubBlockSelector sbs, MatrixShape shape, bool upper, bool islocal = true) { switch (shape) { case MatrixShape.diagonal: case MatrixShape.full: sbs.DefaultCellSplit(upper, islocal); break; case MatrixShape.diagonal_var: case MatrixShape.full_var: sbs.DefaultSpeciesSplit(upper); if (!islocal) { sbs.AllExternalCellsSelection(); } break; case MatrixShape.diagonal_spec: case MatrixShape.full_spec: sbs.DefaultVarSplit(upper); if (!islocal) { sbs.AllExternalCellsSelection(); } break; case MatrixShape.diagonal_var_spec: case MatrixShape.full_var_spec: sbs.DefaultCellSplit(upper, islocal); break; default: throw new NotSupportedException(String.Format("{0} is not supported by this test", shape)); } }
public static void SubBlockExtraction( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.diagonal_var_spec, MatrixShape.diagonal_spec, MatrixShape.diagonal_var, MatrixShape.diagonal)] MatrixShape MShape, [Values(4)] int Res ) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("SubMatrixIgnoreCoupling({0},{1},{2})", UseXdg, DGOrder, MShape); //Arrange --- create test matrix and MG mapping MultigridOperator mgo = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape, Res); MultigridMapping map = mgo.Mapping; BlockMsrMatrix M = mgo.OperatorMatrix; //Arrange --- masking of all external cells var sbs = new SubBlockSelector(map); sbs.AllExternalCellsSelection(); var M_ext = BlockMask.GetAllExternalRows(map, M); var mask = new BlockMask(sbs, M_ext); //bool[] coup = Utils.SetCoupling(MShape); //Arrange --- get index dictonary of all external cell indices Dictionary <int, int[]> Didc = Utils.GetDictOfAllExtCellIdc(map); //Arrange --- stopwatch var stw = new Stopwatch(); stw.Reset(); //Act --- Extract subblocks stw.Start(); //var eblocks = mask.GetSubBlocks(M,coup[0],coup[1],coup[2]); var eblocks = mask.GetDiagonalBlocks(M, false, false); stw.Stop(); //Assert --- same number of blocks? Assert.IsTrue(eblocks.Length == M_ext._RowPartitioning.LocalNoOfBlocks); bool test = eblocks.Length.MPIEquals(); Debug.Assert(test); for (int iBlock = 0; iBlock < eblocks.Length; iBlock++) { var infNorm = MultidimensionalArray.Create(4, 1); int rank = map.MpiRank; int ExtBlockIdx = iBlock + map.AggGrid.iLogicalCells.NoOfLocalUpdatedCells; Didc.TryGetValue(ExtBlockIdx, out int[] idc); using (BatchmodeConnector matlab = new BatchmodeConnector()) { double[] GlobIdx = idc.Count().ForLoop(i => (double)idc[i] + 1.0); Assert.IsTrue(GlobIdx.Length == eblocks[iBlock].Lengths[0]); MsrMatrix M_sub = eblocks[iBlock].ConvertToMsr(); matlab.PutSparseMatrix(M, "M"); // note: M_sub lives on Comm_Self, therefore we have to distinguish between procs ... matlab.PutSparseMatrixRankExclusive(M_sub, "M_sub"); matlab.PutVectorRankExclusive(GlobIdx, "Idx"); matlab.Cmd("M_0 = full(M(Idx_0, Idx_0));"); matlab.Cmd("M_1 = full(M(Idx_1, Idx_1));"); matlab.Cmd("M_2 = full(M(Idx_2, Idx_2));"); matlab.Cmd("M_3 = full(M(Idx_3, Idx_3));"); matlab.Cmd("n=[0; 0; 0; 0];"); matlab.Cmd("n(1,1)=norm(M_0-M_sub_0,inf);"); matlab.Cmd("n(2,1)=norm(M_1-M_sub_1,inf);"); matlab.Cmd("n(3,1)=norm(M_2-M_sub_2,inf);"); matlab.Cmd("n(4,1)=norm(M_3-M_sub_3,inf);"); matlab.GetMatrix(infNorm, "n"); matlab.Execute(); } Assert.IsTrue(infNorm[rank, 0] == 0.0); // } }
public static void VectorCellwiseOperation( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.diagonal_var_spec, MatrixShape.diagonal_spec, MatrixShape.diagonal_var, MatrixShape.diagonal)] MatrixShape MShape, [Values(4)] int Res ) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("SubMatrixIgnoreCoupling({0},{1},{2})", UseXdg, DGOrder, MShape); //Arrange --- create test matrix, MG mapping MultigridOperator mgo = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape, Res); MultigridMapping map = mgo.Mapping; BlockMsrMatrix M = mgo.OperatorMatrix; //Arrange --- masking and subblock extraction of external cells var sbs = new SubBlockSelector(map); sbs.AllExternalCellsSelection(); var M_ext = BlockMask.GetAllExternalRows(map, M); var mask = new BlockMask(sbs, M_ext); var eblocks = mask.GetDiagonalBlocks(M, false, false); //Dictionary<int, int[]> Didc = Utils.GetDictOfAllExtCellIdc(map); //Arrange --- generate rnd vector and distribute it double[] vec = new double[map.LocalLength]; vec = Utils.GetRandomVector(map.LocalLength); var vec_ex = new MPIexchange <double[]>(map, vec); vec_ex.TransceiveStartImReturn(); vec_ex.TransceiveFinish(0.0); Debug.Assert(vec_ex.Vector_Ext.L2Norm() != 0); //Arrange --- stopwatch var stw = new Stopwatch(); stw.Reset(); //Arrange --- get extended (loc+external cells) vector double[] Vec_ext = new double[vec.Length + vec_ex.Vector_Ext.Length]; mask.AccSubVec(vec_ex.Vector_Ext, Vec_ext); bool test = eblocks.Length.MPIEquals(); Debug.Assert(test); //Act --- calculate blockwise result: M_i*vec_i=Res_i double[] Res_ext = new double[Vec_ext.Length]; stw.Start(); for (int i = 0; i < eblocks.Length; i++) { //int iBlock = i + map.AggGrid.iLogicalCells.NoOfLocalUpdatedCells; double[] vec_i = mask.GetSubVecOfCell(Vec_ext, i); double[] Res_i = new double[vec_i.Length]; eblocks[i].MatVecMul(1.0, vec_i, 0.0, Res_i); mask.AccSubVecOfCell(Res_i, i, Res_ext); if (map.MpiRank == 0) { eblocks[i].ConvertToMsr().SaveToTextFileSparseDebug(String.Format("block_{0}_{1}", i, map.MpiRank)); vec_i.SaveToTextFileDebug(String.Format("vec_{0}_{1}", i, map.MpiRank)); Res_i.SaveToTextFileDebug(String.Format("Res_{0}_{1}", i, map.MpiRank)); } } stw.Stop(); //Act --- project Res_i onto Res_g and Res_g=M_ext*vec_ext-Res_g double[] Res_g = mask.GetSubVec(Res_ext); var qM_ext = M_ext.ConvertToQuadraticBMsr(mask.GlobalIList_External.ToArray(), false); qM_ext.SpMV(1.0, vec_ex.Vector_Ext, -1.0, Res_g); if (map.MpiRank == 0) { vec_ex.Vector_Ext.SaveToTextFileDebug("vec_g"); Res_g.SaveToTextFileDebug("Res_g"); M_ext.SaveToTextFileSparseDebug("M_ext"); qM_ext.SaveToTextFileSparseDebug("qM_ext"); } //Assert --- |Res_g| should be at least near to zero Assert.IsTrue(Res_g.L2Norm() == 0.0); }
public static void FastSubMatrixExtraction( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.laplace)] MatrixShape MShape, [Values(4)] int Res ) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("FastSubMatrixExtraction({0},{1},{2})", UseXdg, DGOrder, MShape); //Arrange --- MultigridOperator mgo = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape, Res); MultigridMapping map = mgo.Mapping; BlockMsrMatrix M = mgo.OperatorMatrix; var sbs = new SubBlockSelector(map); int[] extcells = sbs.AllExternalCellsSelection(); var M_ext = BlockMask.GetAllExternalRows(map, M); var mask = new BlockMask(sbs, M_ext); //Arrange --- get index list of all external cells int[] idc = Utils.GetAllExtCellIdc(map); double[] GlobIdx = idc.Count().ForLoop(i => (double)idc[i] + 1.0); //Arrange --- stopwatch var stw = new Stopwatch(); stw.Reset(); //Act --- Extract SubMatrix stw.Start(); BlockMsrMatrix subM = mask.GetSubBlockMatrix(M); stw.Stop(); //Arrange --- Extract Blocks in Matlab and substract var infNorm = MultidimensionalArray.Create(4, 1); int rank = map.MpiRank; using (BatchmodeConnector matlab = new BatchmodeConnector()) { matlab.PutSparseMatrix(M, "M"); // note: M_sub lives on Comm_Self, therefore we have to distinguish between procs ... matlab.PutSparseMatrixRankExclusive(subM, "M_sub"); matlab.PutVectorRankExclusive(GlobIdx, "Idx"); matlab.Cmd("M_0 = M(Idx_0, Idx_0);"); matlab.Cmd("M_1 = M(Idx_1, Idx_1);"); matlab.Cmd("M_2 = M(Idx_2, Idx_2);"); matlab.Cmd("M_3 = M(Idx_3, Idx_3);"); matlab.Cmd("n=[0; 0; 0; 0];"); matlab.Cmd("n(1,1)=norm(M_0-M_sub_0,inf);"); matlab.Cmd("n(2,1)=norm(M_1-M_sub_1,inf);"); matlab.Cmd("n(3,1)=norm(M_2-M_sub_2,inf);"); matlab.Cmd("n(4,1)=norm(M_3-M_sub_3,inf);"); matlab.GetMatrix(infNorm, "n"); matlab.Execute(); } //Assert --- mask blocks and extracted blocks are the same Assert.IsTrue(infNorm[rank, 0] == 0.0); }
public static void SubBlockExtractionWithCoupling( [Values(XDGusage.none, XDGusage.all)] XDGusage UseXdg, [Values(2)] int DGOrder, [Values(MatrixShape.diagonal, MatrixShape.diagonal_var, MatrixShape.diagonal_spec, MatrixShape.diagonal_var_spec)] MatrixShape MShape ) { Utils.TestInit((int)UseXdg, DGOrder, (int)MShape); Console.WriteLine("ExtractDiagonalBlocks({0},{1},{2})", UseXdg, DGOrder, MShape); //Arrange --- get multigridoperator MultigridOperator MGOp = Utils.CreateTestMGOperator(UseXdg, DGOrder, MShape); BlockMsrMatrix M = MGOp.OperatorMatrix; MultigridMapping map = MGOp.Mapping; //Arrange --- setup masking SubBlockSelector SBS = new SubBlockSelector(map); BlockMask mask = new BlockMask(SBS, null); bool[] coupling = Utils.SetCoupling(MShape); //Arrange --- some time measurement Stopwatch stw = new Stopwatch(); stw.Reset(); //Arrange --- setup auxiliary matrix //this will show us if more is extracted, than it should ... var Mprep = new BlockMsrMatrix(map); Mprep.Acc(1.0, M); //Act --- diagonal subblock extraction stw.Start(); var blocks = mask.GetDiagonalBlocks(Mprep, coupling[0], coupling[1]); stw.Stop(); //Assert --- all diagonal blocks are extracted Assert.IsTrue(blocks.Length == map.LocalNoOfBlocks); for (int i = 0; i < map.LocalNoOfBlocks; i++) { //Arrange --- get ith diagonal block of M: M_i int iBlock = i + map.AggGrid.CellPartitioning.i0; int L = map.GetBlockLen(iBlock); int i0 = map.GetBlockI0(iBlock); var Mblock = MultidimensionalArray.Create(L, L); M.ReadBlock(i0, i0, Mblock); //Act --- M_i-Mones_i Mblock.Acc(-1.0, blocks[i]); //Assert --- are extracted blocks and Assert.IsTrue(Mblock.InfNorm() == 0.0, String.Format("infNorm of block {0} neq 0!", i)); } //BlockMsrMatrix all1; //all1.SetAll(1); //Generate broken diagonal matrix, die zur Maske passt: M //M+all1=M_prep //Wende Extraction auf M_prep an, Man sollte nun M bekommen //Test: M_prep-extract(M_prep)=all1 //Test-crit: Result.SumEntries=DOF^2 oder Result.Max()==Result.Min()==1 //oder (besser) //Test: M-extract(M_prep)=zeros //Test-crit: Result.InfNorm()==0 //Der Test kann für ExtractSubMatrix mit ignore coupling wiederholt werden //eventuell: Testmatrix finden mit brauchbaren Nebendiagonalen für einen Fall //Was wird getestet: funktioniert ignorecoupling richtig? }
public TestMask(SubBlockSelector SBS, BlockMsrMatrix ExtRows) : base(SBS, ExtRows) { Global_IList_LocalCells = base.GlobalIList_Internal.ToArray(); Global_IList_ExternalCells = base.GlobalIList_External.ToArray(); }