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use PackedBoolList typedef instead of PackedList<1>

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Note:

PackedList constructor initializes to zero, faster not to do it
ourselves.
ie,
    PackedList foo(nPoints);
vs.
    PackedList foo(nPoints, 0);

saves an extra nPoints operations with shifts/masks etc.

If speed is important, change this type of code

    PackedList isMaster(nPoints, 1u);
    for (loop)
    {
        if (condition)
        {
            isMaster.set(i, 0u);   // unset bit
        }
    }
    return isMaster;

into this:

    PackedList notMaster(nPoints);
    for (loop)
    {
        if (!condition)
        {
            notMaster.set(i, 1u);
        }
    }
    notMaster.flip();
    return notMaster;

or this:

    PackedList isMaster(nPoints);
    isMaster.flip();

    for (loop)
    {
        if (condition)
        {
            isMaster.set(i, 0u);
        }
    }
    return isMaster;
This commit is contained in:
Mark Olesen
2009-12-02 17:04:31 +01:00
parent 99b293ffb3
commit 51fd6327a6
8 changed files with 26 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
src/meshTools/searchableSurface/distributedTriSurfaceMesh.C
View File

@ -36,15 +36,19 @@ License
#include "IFstream.H"
#include "decompositionMethod.H"
#include "vectorList.H"
#include "PackedBoolList.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(distributedTriSurfaceMesh, 0);
addToRunTimeSelectionTable(searchableSurface, distributedTriSurfaceMesh, dict);
defineTypeNameAndDebug(distributedTriSurfaceMesh, 0);
addToRunTimeSelectionTable
(
searchableSurface,
distributedTriSurfaceMesh,
dict
);
}
@ -873,7 +877,7 @@ Foam::distributedTriSurfaceMesh::independentlyDistributedBbs
bbs[procI].setSize(1);
//bbs[procI][0] = boundBox::invertedBox;
bbs[procI][0].min() = point( VGREAT, VGREAT, VGREAT);
bbs[procI][0].max() = point(-VGREAT, -VGREAT, -VGREAT);
bbs[procI][0].max() = point(-VGREAT, -VGREAT, -VGREAT);
}
forAll (s, triI)
@ -917,8 +921,7 @@ void Foam::distributedTriSurfaceMesh::calcBounds
// Unfortunately nPoints constructs meshPoints() so do compact version
// ourselves
PackedList<1> pointIsUsed(points().size());
pointIsUsed = 0U;
PackedBoolList pointIsUsed(points().size());
nPoints = 0;
bb.min() = point(VGREAT, VGREAT, VGREAT);
@ -933,7 +936,7 @@ void Foam::distributedTriSurfaceMesh::calcBounds
forAll(f, fp)
{
label pointI = f[fp];
if (pointIsUsed.set(pointI, 1))
if (pointIsUsed.set(pointI, 1u))
{
bb.min() = ::Foam::min(bb.min(), points()[pointI]);
bb.max() = ::Foam::max(bb.max(), points()[pointI]);