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

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Hrvoje Jasak 2011-08-24 16:23:45 +01:00
parent 7dca0eb9e4
commit 0aa01c3dc7
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 mOwn = magFOwn[faceI];
scalar mNei = magFNei[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); scalar mean = 2.0*mOwn*mNei/den1;
weights[faceI] = (mean - mNei)/den; weights[faceI] = (mean - mNei)/den2;
} }
else else
{ {