Dominique:

It seems that the problem is that VS 2008 requires OpenMP loop variables to be signed integers, not unsigned integers. The older OpenMP Standard required this, but it was never enforced by other implementations, such as gcc's. The newer OpenMP 3 Standard allows unsigned integers, and I think that's what VS 2010 supports.

So the possible solutions here are:

1. Build without OpenMP support (you lose some SMP speedup, but not much, because most SMP code uses low-level threads anyway).

2. Build with VisualStudio 2010 is you have it available.

3. Change all loop variables to signed integers. I am a bit hesitant to do this, though, because it's an awful lot of loops, and changing the loop variable type will lead to further compiler warnings, because then loop index and loop bound will often have mismatched types.

Do you think you can live with either option 1. or 2.? I guess in the long run Option 2 will happen by itself anyway?

TR