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Re: Polyhedron b'marks | Linux vs Windows

From: Evan Cooch <evan dot cooch at gmail dot com>
To: Richard Biener <richard dot guenther at gmail dot com>
Cc: Tim Prince <tprince at computer dot org>, "fortran at gcc dot gnu dot org" <fortran at gcc dot gnu dot org>
Date: Mon, 02 Jun 2014 09:04:04 -0600
Subject: Re: Polyhedron b'marks | Linux vs Windows
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References: <538BAFEC dot 3060002 at gmail dot com> <538BC0BA dot 4030401 at aol dot com> <538C8A1E dot 9060204 at gmail dot com> <CAFiYyc3=aBvSaiCTV=xq2A5rU7K5MbUv8hz1LSmm819mv72vnQ at mail dot gmail dot com>


What is interesting (and largely what motivated my original post) is that I
have a number of colleagues who report more or less the same thing (and that
it has been the case since at least gfortran 4.4).

I suspect the main difference is the system supplied math library,
glibc libm in the Linux case and whatever Windows provides.  This
can make a tremendous difference for the benchmarks that call
transcendental functions.

Richard.

Thanks -- that makes sense. Next step will be to see what other optionsare available, and how to get PB to point at them. This sort of thing istrivial under Linux (based on more experience with Linux than Windows),but probably time I giured out same under Windows.

References:
- Polyhedron b'marks | Linux vs Windows
  - From: Evan Cooch
- Re: Polyhedron b'marks | Linux vs Windows
  - From: Tim Prince
- Re: Polyhedron b'marks | Linux vs Windows
  - From: Evan Cooch
- Re: Polyhedron b'marks | Linux vs Windows
  - From: Richard Biener

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