//
//
/// <summary>
/// applies the agglomeration on a general matrix
/// </summary>
/// <param name="Matrix">the matrix that should be manipulated.</param>
/// <param name="Rhs">the right-hand-side that should be manipulated</param>
/// <param name="ColMap"></param>
/// <param name="ColMapAggSw">Turns column agglomeration on/off fore each variable individually; default == null is on. </param>
/// <param name="RowMap"></param>
/// <param name="RowMapAggSw">The same shit as for <paramref name="ColMapAggSw"/>, just for rows.</param>
public void ManipulateMatrixAndRHS<M, T>(M Matrix, T Rhs, UnsetteledCoordinateMapping RowMap, UnsetteledCoordinateMapping ColMap, bool[] RowMapAggSw = null, bool[] ColMapAggSw = null)
where M : IMutableMatrixEx
where T : IList<double>
{
MPICollectiveWatchDog.Watch();
//var mtxS = GetFrameMatrices(Matrix, RowMap, ColMap);
if (Matrix == null && Rhs == null)
// nothing to do
return;
if (TotalNumberOfAgglomerations <= 0)
// nothing to do
return;
if (RowMapAggSw != null)
throw new NotImplementedException();
// generate agglomeration sparse matrices
// ======================================
int RequireRight;
if (Matrix == null) {
// we don't need multiplication-from-the-right at all
RequireRight = 0;
} else {
if (RowMap.EqualsUnsetteled(ColMap) && ArrayTools.ListEquals(ColMapAggSw, RowMapAggSw)) {
// we can use the same matrix for right and left multiplication
RequireRight = 1;
} else {
// separate matrix for the multiplication-from-the-right is required
RequireRight = 2;
}
}
BlockMsrMatrix LeftMul = null, RightMul = null;
{
foreach (var kv in DictAgglomeration) {
var Species = kv.Key;
var m_Agglomerator = kv.Value;
if (m_Agglomerator != null) {
CellMask spcMask = this.Tracker.Regions.GetSpeciesMask(Species);
MiniMapping rowMini = new MiniMapping(RowMap, Species, this.Tracker.Regions);
BlockMsrMatrix LeftMul_Species = m_Agglomerator.GetRowManipulationMatrix(RowMap, rowMini.MaxDeg, rowMini.NoOfVars, rowMini.i0Func, rowMini.NFunc, false, spcMask);
if (LeftMul == null) {
LeftMul = LeftMul_Species;
} else {
LeftMul.Acc(1.0, LeftMul_Species);
}
if (!object.ReferenceEquals(LeftMul, RightMul) && RightMul != null) {
MiniMapping colMini = new MiniMapping(ColMap, Species, this.Tracker.Regions);
BlockMsrMatrix RightMul_Species = m_Agglomerator.GetRowManipulationMatrix(ColMap, colMini.MaxDeg, colMini.NoOfVars, colMini.i0Func, colMini.NFunc, false, spcMask);
if (RightMul == null) {
RightMul = RightMul_Species;
} else {
RightMul.Acc(1.0, RightMul_Species);
}
} else if (RequireRight == 1) {
RightMul = LeftMul;
} else {
RightMul = null;
}
}
}
}
// apply the agglomeration to the matrix
// =====================================
if (Matrix != null) {
BlockMsrMatrix RightMulTr = RightMul.Transpose();
BlockMsrMatrix _Matrix;
if (Matrix is BlockMsrMatrix) {
_Matrix = (BlockMsrMatrix)((object)Matrix);
} else {
_Matrix = Matrix.ToBlockMsrMatrix(RowMap, ColMap);
}
var AggMatrix = BlockMsrMatrix.Multiply(LeftMul, BlockMsrMatrix.Multiply(_Matrix, RightMulTr));
if (object.ReferenceEquals(_Matrix, Matrix)) {
_Matrix.Clear();
_Matrix.Acc(1.0, AggMatrix);
} else {
Matrix.Acc(-1.0, _Matrix); // das ist so
Matrix.Acc(1.0, AggMatrix); // meagaschlecht !!!!!!
}
}
// apply the agglomeration to the Rhs
// ==================================
if (Rhs != null) {
double[] tmp = Rhs.ToArray();
if (object.ReferenceEquals(tmp, Rhs))
throw new ApplicationException("Flache kopie sollte eigentlich ausgeschlossen sein!?");
LeftMul.SpMV(1.0, tmp, 0.0, Rhs);
}
}
