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Re: G77 DOUBLE/SINGLE PRECISION PUZZLE
- From: "Bjorn R. Jensen" <bjensen at fastmail dot fm>
- To: gcc-help at gcc dot gnu dot org
- Date: Fri, 19 Jul 2002 13:16:59 +0000
- Subject: Re: G77 DOUBLE/SINGLE PRECISION PUZZLE
- Reply-to: "Bjorn R. Jensen" <bjensen at fastmail dot fm>
Hi there,
I think, the problem is merely a symptom of using too low a precision
solving your differential equation. I doubt, there is significant
difference in the precision of floats on various windows platforms.
Your
differential equation most likely has degenerate or near degenerate
regions in its
Hilbert space, so where you end up would be fairly random, if the
precision
is too low.
You could try to map out the surfaces of the relevant eigenvalues in
the regions,
where the calculations start to diverge.
Yours sincerely,
Bjorn