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Re: GCC/g77-3.0-to-be compiles our NWP correctly - for the first time
- To: "Toon Moene" <toon at moene dot indiv dot nluug dot nl>, <gcc at gcc dot gnu dot org>
- Subject: Re: GCC/g77-3.0-to-be compiles our NWP correctly - for the first time
- From: "Timothy Prince" <tprince at computer dot org>
- Date: Sat, 10 Jun 2000 12:15:05 -0700
- References: <39428D3F.6A97D13D@moene.indiv.nluug.nl>
We have continued problems with -funroll-loops (including the long
standing ICE in LAPACK) on x86, which seem to occur in cases where the
compiler prepares to unroll and then decides (probably reasonably so)
not to do so. One loop in LFK compiles without complaint, but appears
to have built for a fixed loop count where it needs to be variable. I
don't have multiple architectures at my disposal to see if this is
platform dependent (still no employment, other than short term tasks).
Tim Prince
----- Original Message -----
From: "Toon Moene" <toon@moene.indiv.nluug.nl>
To: <gcc@gcc.gnu.org>
Sent: Saturday, June 10, 2000 11:47 AM
Subject: GCC/g77-3.0-to-be compiles our NWP correctly - for the first
time
> GCC-3.0-pre is somewhat faster than GCC-2.95.2, although it seems not
to
> honor the -funroll-loops flag. I'll wait investigating that until Jan
> Hubicka's ("Wat zijn die Tsjechen stil") loop patches have gone in.
>
> Cheers,
>
> --
> Toon Moene - mailto:toon@moene.indiv.nluug.nl - phoneto: +31 346
214290
> Saturnushof 14, 3738 XG Maartensdijk, The Netherlands
> GNU Fortran 77: http://gcc.gnu.org/onlinedocs/g77_news.html
> GNU Fortran 95: http://g95.sourceforge.net/ (under construction)