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parallel table build

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This commit is contained in:
Joachim Schöberl 2019-10-03 20:24:21 +02:00
parent 0dd913fc20
commit 0d9bb4bd97
1 changed files with 42 additions and 7 deletions
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41
libsrc/meshing/meshclass.cpp
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@ -1662,6 +1662,8 @@ namespace netgen
void Mesh :: CalcSurfacesOfNode ()
{
static Timer t("Mesh::CalcSurfacesOfNode"); RegionTimer reg (t);
static Timer tn2se("Mesh::CalcSurfacesOfNode - surf on node");
static Timer tht("Mesh::CalcSurfacesOfNode - surfelementht");
// surfacesonnode.SetSize (GetNP());
TABLE<int,PointIndex::BASE> surfacesonnode(GetNP());
@ -1683,6 +1685,7 @@ namespace netgen
surfelementht = make_unique<INDEX_3_CLOSED_HASHTABLE<int>> (3*GetNSE() + 1);
segmentht = make_unique<INDEX_2_CLOSED_HASHTABLE<int>> (3*GetNSeg() + 1);
tn2se.Start();
if (dimension == 3)
/*
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
@ -1734,7 +1737,9 @@ namespace netgen
surfelementht -> AllocateElements();
*/
tn2se.Stop();
tht.Start();
if (dimension==3)
for (SurfaceElementIndex sei = 0; sei < GetNSE(); sei++)
{
@ -1748,6 +1753,7 @@ namespace netgen
i3.Sort();
surfelementht -> Set (i3, sei); // war das wichtig ??? sel.GetIndex());
}
tht.Stop();
// int np = GetNP();
@ -1878,10 +1884,38 @@ namespace netgen
int ne = GetNE();
int nse = GetNSE();
NgArray<int,PointIndex::BASE> numonpoint(np);
numonpoint = 0;
t_table.Start();
TableCreator<ElementIndex, PointIndex> creator(np);
for ( ; !creator.Done(); creator++)
// for (ElementIndex ei : Range(VolumeElements()))
ParallelFor
(Range(VolumeElements()), [&] (ElementIndex ei)
{
const Element & el = (*this)[ei];
if (dom == 0 || dom == el.GetIndex())
{
if (el.GetNP() == 4)
{
INDEX_4 i4(el[0], el[1], el[2], el[3]);
i4.Sort();
creator.Add (PointIndex(i4.I1()), ei);
creator.Add (PointIndex(i4.I2()), ei);
}
else
{
for (PointIndex pi : el.PNums())
creator.Add(pi, ei);
}
}
});
auto elsonpoint = creator.MoveTable();
NgArray<int,PointIndex::BASE> numonpoint(np);
/*
numonpoint = 0;
for (ElementIndex ei = 0; ei < ne; ei++)
{
const Element & el = (*this)[ei];
@ -1918,6 +1952,7 @@ namespace netgen
elsonpoint.Add (el[j], ei);
}
}
*/
t_table.Stop();