/// <summary>
/// Legacy interface, preserved as static function.
/// </summary>
static public void ComputeMatrixEx <M, V>(
this XSpatialOperator xOp,
LevelSetTracker lsTrk,
UnsetteledCoordinateMapping DomainMap, IList <DGField> Parameters, UnsetteledCoordinateMapping CodomainMap,
M Matrix, V AffineOffset, bool OnlyAffine,
double time,
bool MPIParameterExchange,
SubGrid subGrid, params SpeciesId[] whichSpc)
where M : IMutableMatrixEx
where V : IList <double> //
{
Console.WriteLine("Warning: Legacy interface!");
Console.WriteLine(" Usage of XDG without an agglomerated penalty!");
int order = xOp.GetOrderFromQuadOrderFunction(DomainMap, Parameters, CodomainMap);
MultiphaseCellAgglomerator dummy = lsTrk.GetAgglomerator(lsTrk.SpeciesIdS.ToArray(), order, 0.0);
Dictionary <SpeciesId, MultidimensionalArray> Idummy = dummy.XDGSpaceMetrics.CutCellMetrics.InterfaceArea;
var bla = new Dictionary <SpeciesId, XSpatialOperator.QrSchemPair>();
foreach (var sp in whichSpc)
{
bla.Add(sp, new XSpatialOperator.QrSchemPair());
}
ComputeMatrixEx <M, V>(
xOp,
lsTrk,
DomainMap, Parameters, CodomainMap,
Matrix, AffineOffset,
OnlyAffine, time, MPIParameterExchange, bla,
dummy.CellLengthScales, Idummy, SubGrid: subGrid);
Debug.Assert(dummy.TotalNumberOfAgglomerations <= 0, "internal error");
}
/// <summary>
/// returns global unique indices which correlate to a certain sub-set of ...
/// <list type="bullet">
/// <item>the mappings's basis (<paramref name="mapping"/>, <see cref="UnsetteledCoordinateMapping.BasisS"/>).</item>
/// <item>species (<paramref name="_SpcIds"/>).</item>
/// <item>cells (<paramref name="cm"/>).</item>
/// </list>
/// </summary>
/// <param name="mapping">
/// the mapping
/// </param>
/// <param name="Fields">
/// determines which fields should be in the sub-vector-indices-list
/// </param>
/// <param name="_SpcIds">
/// determines which species should be in the sub-vector-indices-list; null indicates all species.
/// </param>
/// <param name="cm">
/// determines which cells should be in the sub-vector-indices-list; null indicates all cells.
/// </param>
/// <param name="regions">
/// Determines which XDG-coordinate belongs to which species.
/// </param>
/// <param name="presenceTest">
/// if true, cells where some species has zero measure are excluded from the sub-vector-indices-list.
/// </param>
/// <param name="drk">
/// a cell-agglomeration object: if null, ignored; if provided,
/// cells which are eliminated by the agglomeration are excluded from the sub-vector-indices-list
/// </param>
/// <returns>a list of global (over all MPI processes) unique indices.</returns>
static public int[] GetSubvectorIndices(this UnsetteledCoordinateMapping mapping, LevelSetTracker.LevelSetRegions regions, int[] Fields,
ICollection <SpeciesId> _SpcIds = null, CellMask cm = null, bool presenceTest = true, MultiphaseCellAgglomerator drk = null)
{
#region Check Arguments
// =========
SpeciesId[] SpcIds = null;
if (_SpcIds == null)
{
// take all species, if arg is null
SpcIds = regions.SpeciesIdS.ToArray();
}
else
{
SpcIds = _SpcIds.ToArray();
}
if (SpcIds.Length <= 0)
{
// return will be empty for no species
return(new int[0]);
}
#endregion
#region collect cells which are excluded by agglomeration
// =================================================
int[][] ExcludeLists;
if (drk != null)
{
ExcludeLists = new int[regions.SpeciesIdS.Count][]; // new Dictionary<SpeciesId, int[]>();
foreach (var id in SpcIds)
{
int[] ExcludeList = drk.GetAgglomerator(id).AggInfo.AgglomerationPairs.Select(pair => pair.jCellSource).ToArray();
Array.Sort(ExcludeList);
ExcludeLists[id.cntnt - LevelSetTracker.___SpeciesIDOffest] = ExcludeList;
}
}
else
{
ExcludeLists = null;
}
#endregion
#region determine over which cells we want to loop
// ==========================================
CellMask loopCells;
if ((new HashSet <SpeciesId>(regions.SpeciesIdS)).SetEquals(new HashSet <SpeciesId>(SpcIds)))
{
if (cm == null)
{
loopCells = CellMask.GetFullMask(regions.GridDat);
}
else
{
loopCells = cm;
}
}
else
{
loopCells = regions.GetSpeciesMask(SpcIds[0]);
for (int i = 1; i < SpcIds.Length; i++)
{
loopCells = loopCells.Intersect(regions.GetSpeciesMask(SpcIds[i]));
}
if (cm != null)
{
loopCells = loopCells.Intersect(cm);
}
}
#endregion
#region build list
// ==========
var R = new List <int>();
// which basis is XDG?
var _BasisS = mapping.BasisS.ToArray();
XDGBasis[] _XBasisS = new XDGBasis[_BasisS.Length];
for (int i = 0; i < _BasisS.Length; i++)
{
_XBasisS[i] = _BasisS[i] as XDGBasis;
}
Tuple <int, SpeciesId>[] iSpcS = new Tuple <int, SpeciesId> [SpcIds.Length];
int KK;
int Len_iSpcS = iSpcS.Length;
int[] ExcludeListsPointer = new int[regions.SpeciesIdS.Count];
// loop over cells?
foreach (int jCell in loopCells.ItemEnum)
{
int NoOfSpc = regions.GetNoOfSpecies(jCell);
#region
//
// in cell 'jCell', for each species in 'SpcIds' ...
// * is the species present in 'jCell'?
// * what is the species index in 'jCell'?
// * we also have to consider that due to agglomeration, the respective cut-cell for the species might have been agglomerated.
// so we determine
// * 'KK' is the number of species (from 'SpcIds') which is actually present and not agglomerated in 'jCell'
// * for i in (0 ... KK-1), iSpcS[i] is a tuple of (Species-index-in-cell, SpeciesID)
//
// yes, the following code sucks:
KK = 0;
for (int k = 0; k < Len_iSpcS; k++) // loop over all species (provided as argument)...
{
SpeciesId id = SpcIds[k];
int __iSpcS = regions.GetSpeciesIndex(id, jCell);
if (__iSpcS >= 0)
{
// species index is non-negative, so indices for the species are allocated ...
if (!presenceTest || regions.IsSpeciesPresentInCell(id, jCell))
{
// species is also present (i.e. has a greater-than-zero measure ...
if (drk == null)
{
// no agglomeration exclution
iSpcS[KK] = new Tuple <int, SpeciesId>(__iSpcS, id);
KK++;
}
else
{
int q = id.cntnt - LevelSetTracker.___SpeciesIDOffest;
var el = ExcludeLists[q];
while (ExcludeListsPointer[q] < el.Length &&
el[ExcludeListsPointer[q]] < jCell)
{
ExcludeListsPointer[q]++;
}
Debug.Assert(ExcludeListsPointer[q] >= el.Length || el[ExcludeListsPointer[q]] >= jCell);
if (ExcludeListsPointer[q] >= el.Length || el[ExcludeListsPointer[q]] != jCell)
{
// cell is also not agglomerated ...
iSpcS[KK] = new Tuple <int, SpeciesId>(__iSpcS, id);
KK++;
}
}
}
}
}
if (KK > 1)
{
Array.Sort <Tuple <int, SpeciesId> >(iSpcS, 0, KK, new ilPSP.FuncComparer <Tuple <int, SpeciesId> >((a, b) => a.Item1 - b.Item1));
}
// --------- esc (end of sucking code)
#endregion
for (int k = 0; k < KK; k++) // loop over species in cell
{
int iSpc = iSpcS[k].Item1;
for (int i = 0; i < Fields.Length; i++)
{
int iField = Fields[i];
if (_XBasisS[iField] == null)
{
int N = _BasisS[iField].GetLength(jCell);
int i0 = mapping.LocalUniqueCoordinateIndex(iField, jCell, 0);
for (int n = 0; n < N; n++)
{
R.Add(i0 + n);
}
}
else
{
int N = _XBasisS[iField].DOFperSpeciesPerCell;
int i0 = mapping.LocalUniqueCoordinateIndex(iField, jCell, 0) + iSpc * N;
for (int n = 0; n < N; n++)
{
R.Add(i0 + n);
}
}
}
}
}
#endregion
return(R.ToArray());
}
