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Work-around for strange floating point exception; probably optimisation failure

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This commit is contained in:
Hrvoje Jasak 2011-08-24 16:23:45 +01:00
parent fe3ec2c380
commit fbbbcb4c31
1 changed files with 8 additions and 4 deletions
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12
src/finiteVolume/fields/fvPatchFields/constraint/regionCouple/regionCoupleFvPatchField.C
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@ -191,12 +191,16 @@ void regionCoupleFvPatchField<Type>::evaluate
scalar mOwn = magFOwn[faceI];
scalar mNei = magFNei[faceI];
scalar den = mOwn - mNei;
scalar den1 = mOwn + mNei;
scalar den2 = mOwn - mNei;
if (mag(den) > SMALL)
// Strange optimisation check: floating point failure if only
// checking for den2. den1 check should not be needed
// HJ, 24/Aug/2011
if (mag(den1) > SMALL && mag(den2) > SMALL)
{
scalar mean = 2.0*mOwn*mNei/(mOwn + mNei);
weights[faceI] = (mean - mNei)/den;
scalar mean = 2.0*mOwn*mNei/den1;
weights[faceI] = (mean - mNei)/den2;
}
else
{