Polyhedron performance regression

[Thomas Koenig]

On Mon, Nov 13, 2006 at 06:56:21PM +0100, Paul Richard Thomas wrote:

> I realised from looking at the code for ac.f90, whilst on the plane last
> night, that this must be the case.  ac.f90 hinges on the random number
> generator, which uses MOD.

The random number generator in ac.f90 is home-grown, of the Q&D
sort.  I don't like performance regressions better than anybody
else but we do have a working RNG with our RANDOM_NUMBER intrinsic,
which people should be encouraged to use, and I don't feel we
should revert a wrong-code patch for this.

> I don't think that we should be ashamed about it.

Definitely not.

> 32bit systems are
> fine; I checked the Polyhedron suite before submitting and was
> disappointed that it seemed to have little or no effect, other than
> correcting the original PR!

This is above the call of duty :-)

	Thomas