Date:	Fri, 12 Mar 1999 08:34:09 +0100 (MET)
From:	Michael Hanke <hanke AT nada DOT kth DOT se>
To:	pgcc AT delorie DOT com
Subject:	Re: AMDK6 optimized kernel and others
In-Reply-To:	<Pine.BSF.3.96.990311222721.17329A-100000@recomnet.recomnet.net>
Message-ID:	<Pine.GSO.3.95.990312082710.13124A-100000@c2m2-17.nada.kth.se>
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Reply-To:	pgcc AT delorie DOT com
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On Thu, 11 Mar 1999, Dan Melomedman (free video eden) wrote:

> without size optimization for K6. Also I noted that gzip compiled for
> pentium is slower that gzip compiled for amdk6 on amd machine, this kinda
> shows that amdk6 optimization actually works quite nicely. I use Stampede
This note gives me the opportunity to ask about the real gain of pgcc
on AMD chips. I have an old K5 processor. Since I am mainly
interested in scientific computing, I would like to know the possible
gain for fpu intense applications (e.g. BLAS). And the best possible
flags (IEEE arithmetic is essential!). Recently, I am using gcc 2.7.2
with -m486. Moreover, most programs are
written in FORTRAN. Is there a pg77 available or should I resort to
f2c?
The main exception in my applications are qt/KDE/lyx. Does anybody
have experiences in the gain in speed for these programs?

Yours,
Michael

+---------------------------------------------------------------+
|  Michael Hanke                Royal Institute of Technology   |
|                               NADA                            |
|                               S-10044 Stockholm               |
|                               Sweden                          |
+---------------------------------------------------------------+
|  Visiting address:            Lindstedtsvaegen 3              |
|  Phone:                       + (46) (8) 790 6278             |
|  Fax:                         + (46) (8) 790 0930             |
|  Email:                       hanke AT nada DOT kth DOT se               |
|                               na DOT mhanke AT na-net DOT ornl DOT gov       |
+---------------------------------------------------------------+

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