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https://github.com/NGSolve/netgen.git
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parallel main loop in FindOpenElements
This commit is contained in:
Joachim Schöberl
parent
656b0e0539
commit
b867caf01c
@ -1591,6 +1591,8 @@ namespace netgen
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void Mesh :: BuildBoundaryEdges(void)
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{
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static Timer t("Mesh::BuildBoundaryEdges"); RegionTimer reg(t);
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// delete boundaryedges;
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boundaryedges = make_unique<INDEX_2_CLOSED_HASHTABLE<int>>
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@ -1869,6 +1871,8 @@ namespace netgen
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void Mesh :: FindOpenElements (int dom)
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{
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static Timer t("Mesh::FindOpenElements"); RegionTimer reg (t);
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static Timer t_table("Mesh::FindOpenElements - build table");
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static Timer t_pointloop("Mesh::FindOpenElements - pointloop");
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int np = GetNP();
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int ne = GetNE();
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@ -1877,7 +1881,7 @@ namespace netgen
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NgArray<int,PointIndex::BASE> numonpoint(np);
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numonpoint = 0;
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t_table.Start();
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for (ElementIndex ei = 0; ei < ne; ei++)
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{
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const Element & el = (*this)[ei];
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@ -1914,12 +1918,12 @@ namespace netgen
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elsonpoint.Add (el[j], ei);
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}
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}
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t_table.Stop();
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NgArray<char, 1> hasface(GetNFD());
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NgArray<bool, 1> hasface(GetNFD());
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int i;
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for (i = 1; i <= GetNFD(); i++)
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for (int i = 1; i <= GetNFD(); i++)
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{
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int domin = GetFaceDescriptor(i).DomainIn();
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int domout = GetFaceDescriptor(i).DomainOut();
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@ -1988,25 +1992,26 @@ namespace netgen
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}
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int ii;
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PointIndex pi;
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SurfaceElementIndex sei;
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// PointIndex pi;
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// SurfaceElementIndex sei;
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// Element2d hel;
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struct tval { int index; PointIndex p4; };
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INDEX_3_CLOSED_HASHTABLE<tval> faceht(100);
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openelements.SetSize(0);
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// for (PointIndex pi = points.Begin(); pi < points.End(); pi++)
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t_pointloop.Start();
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/*
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INDEX_3_CLOSED_HASHTABLE<tval> faceht(100);
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for (PointIndex pi : points.Range())
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if (selsonpoint[pi].Size()+elsonpoint[pi].Size())
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{
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faceht.SetSize (2 * selsonpoint[pi].Size() + 4 * elsonpoint[pi].Size());
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NgFlatArray<SurfaceElementIndex> row = selsonpoint[pi];
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for (ii = 0; ii < row.Size(); ii++)
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for (SurfaceElementIndex sei : selsonpoint[pi])
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{
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Element2d hel = SurfaceElement(row[ii]);
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Element2d hel = SurfaceElement(sei);
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if (hel.GetType() == TRIG6) hel.SetType(TRIG);
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int ind = hel.GetIndex();
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@ -2017,12 +2022,6 @@ namespace netgen
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if (hel.PNum(1) == pi)
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{
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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/*
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INDEX_2 i2 (GetFaceDescriptor(ind).DomainIn(),
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(hel.GetNP() == 3)
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? PointIndex (PointIndex::INVALID)
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: hel.PNum(4));
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*/
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tval i2;
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i2.index = GetFaceDescriptor(ind).DomainIn();
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i2.p4 = (hel.GetNP() == 3)
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@ -2039,12 +2038,6 @@ namespace netgen
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if (hel.PNum(1) == pi)
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{
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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/*
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INDEX_2 i2 (GetFaceDescriptor(ind).DomainOut(),
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(hel.GetNP() == 3)
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? PointIndex (PointIndex::BASE-1)
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: hel.PNum(4));
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*/
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tval i2;
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i2.index = GetFaceDescriptor(ind).DomainOut();
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i2.p4 = (hel.GetNP() == 3)
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@ -2055,11 +2048,9 @@ namespace netgen
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}
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}
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NgFlatArray<ElementIndex> rowel = elsonpoint[pi];
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for (ii = 0; ii < rowel.Size(); ii++)
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for (ElementIndex ei : elsonpoint[pi])
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{
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const Element & el = VolumeElement(rowel[ii]);
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const Element & el = VolumeElement(ei);
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if (dom == 0 || el.GetIndex() == dom)
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{
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@ -2102,12 +2093,7 @@ namespace netgen
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hel.Invert();
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hel.NormalizeNumbering();
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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/*
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INDEX_2 i2(el.GetIndex(),
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(hel.GetNP() == 3)
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? PointIndex (PointIndex::BASE-1)
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: hel[3]);
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*/
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tval i2;
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i2.index = el.GetIndex();
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i2.p4 = (hel.GetNP() == 3)
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@ -2119,6 +2105,7 @@ namespace netgen
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}
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}
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}
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for (int i = 0; i < faceht.Size(); i++)
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if (faceht.UsedPos (i))
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{
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@ -2128,23 +2115,153 @@ namespace netgen
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faceht.GetData (i, i3, i2);
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if (i2.index != PointIndex::BASE-1)
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{
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// Element2d tri;
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// tri.SetType ( (i2.I2() == PointIndex::BASE-1) ? TRIG : QUAD);
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Element2d tri ( (i2.p4 == PointIndex::BASE-1) ? TRIG : QUAD);
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for (int l = 0; l < 3; l++)
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tri[l] = i3.I(l+1);
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tri.PNum(4) = i2.p4;
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tri.SetIndex (i2.index);
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// tri.Invert();
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openelements.Append (tri);
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}
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}
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}
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*/
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size_t numtasks = ngcore::TaskManager::GetNumThreads();
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Array<Array<Element2d>> thread_openelements(numtasks);
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ParallelJob
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( [&](TaskInfo & ti)
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{
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auto myrange = points.Range().Split(ti.task_nr, ti.ntasks);
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INDEX_3_CLOSED_HASHTABLE<tval> faceht(100);
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for (PointIndex pi : myrange)
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if (selsonpoint[pi].Size()+elsonpoint[pi].Size())
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{
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faceht.SetSize (2 * selsonpoint[pi].Size() + 4 * elsonpoint[pi].Size());
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for (SurfaceElementIndex sei : selsonpoint[pi])
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{
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Element2d hel = SurfaceElement(sei);
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if (hel.GetType() == TRIG6) hel.SetType(TRIG);
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int ind = hel.GetIndex();
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if (GetFaceDescriptor(ind).DomainIn() &&
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(dom == 0 || dom == GetFaceDescriptor(ind).DomainIn()) )
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{
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hel.NormalizeNumbering();
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if (hel.PNum(1) == pi)
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{
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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tval i2;
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i2.index = GetFaceDescriptor(ind).DomainIn();
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i2.p4 = (hel.GetNP() == 3)
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? PointIndex (PointIndex::INVALID)
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: hel.PNum(4);
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faceht.Set (i3, i2);
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}
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}
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if (GetFaceDescriptor(ind).DomainOut() &&
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(dom == 0 || dom == GetFaceDescriptor(ind).DomainOut()) )
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{
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hel.Invert();
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hel.NormalizeNumbering();
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if (hel.PNum(1) == pi)
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{
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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tval i2;
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i2.index = GetFaceDescriptor(ind).DomainOut();
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i2.p4 = (hel.GetNP() == 3)
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? PointIndex (PointIndex::INVALID)
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: hel.PNum(4);
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faceht.Set (i3, i2);
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}
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}
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}
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for (ElementIndex ei : elsonpoint[pi])
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{
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const Element & el = VolumeElement(ei);
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if (dom == 0 || el.GetIndex() == dom)
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{
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for (int j = 1; j <= el.GetNFaces(); j++)
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{
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Element2d hel(TRIG);
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el.GetFace (j, hel);
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hel.Invert();
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hel.NormalizeNumbering();
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if (hel[0] == pi)
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{
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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if (faceht.Used (i3))
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{
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tval i2 = faceht.Get(i3);
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if (i2.index == el.GetIndex())
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{
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i2.index = PointIndex::BASE-1;
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faceht.Set (i3, i2);
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}
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else
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{
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if (i2.index == 0)
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{
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PrintSysError ("more elements on face");
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(*testout) << "more elements on face!!!" << endl;
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(*testout) << "el = " << el << endl;
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(*testout) << "hel = " << hel << endl;
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(*testout) << "face = " << i3 << endl;
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(*testout) << "points = " << endl;
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for (int jj = 1; jj <= 3; jj++)
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(*testout) << "p = " << Point(i3.I(jj)) << endl;
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}
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}
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}
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else
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{
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hel.Invert();
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hel.NormalizeNumbering();
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INDEX_3 i3(hel[0], hel[1], hel[2]);
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tval i2;
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i2.index = el.GetIndex();
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i2.p4 = (hel.GetNP() == 3)
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? PointIndex (PointIndex::INVALID)
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: hel[3];
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faceht.Set (i3, i2);
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}
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}
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}
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}
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}
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for (int i = 0; i < faceht.Size(); i++)
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if (faceht.UsedPos (i))
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{
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INDEX_3 i3;
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tval i2;
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faceht.GetData (i, i3, i2);
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if (i2.index != PointIndex::BASE-1)
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{
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Element2d tri ( (i2.p4 == PointIndex::BASE-1) ? TRIG : QUAD);
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for (int l = 0; l < 3; l++)
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tri[l] = i3.I(l+1);
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tri.PNum(4) = i2.p4;
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tri.SetIndex (i2.index);
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thread_openelements[ti.task_nr].Append (tri);
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}
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}
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}});
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for (auto & a : thread_openelements)
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for (auto & el : a)
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openelements.Append (el);
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t_pointloop.Stop();
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int cnt3 = 0;
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for (i = 0; i < openelements.Size(); i++)
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for (int i = 0; i < openelements.Size(); i++)
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if (openelements[i].GetNP() == 3)
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cnt3++;
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