AMD Athlon with Intel Fortran Compiler

Phillip Matz matz at wsunix.wsu.edu
Fri Jan 25 12:26:06 EST 2002


The 10-30% improvement you observed, was that compared to SSE code
generated by the latest PGI compilers (Rev 3.3 with SSE for AMD) or an
older PGI compiler that doesn't support SSE?

Regards,

Phil Matz


-----Original Message-----
From: beowulf-admin at beowulf.org [mailto:beowulf-admin at beowulf.org] On
Behalf Of Craig Tierney
Sent: Friday, January 25, 2002 8:42 AM
To: Eduardo Melione Abreu
Cc: Beowulf at beowulf.org
Subject: Re: AMD Athlon with Intel Fortran Compiler


I ran the Intel Fortran Compiler on an dual 1.2 Ghz AMD system. I was
seen speed improvements of 10-30% over the Portland Group compiler on 3
different fortran 77 codes. I was using the SSE instructions when
compiling.

The Intel compilers are fast, they are just a bit quirky sometimes. They
complain about Fortran 77 and Fortran 90 syntax unless you tell it not
too.  It didn't like some of the code and would complain with internal
compiler errors until I reorganized some code.  I never got my Fortran
90 program to run with optmization.  I don't think it is all F90 codes
just mine had some syntax that it couldn't digest.

Craig


> Hi,
> 
> Do anyone have yet installed and runned a Linux system with an AMD 
> Athlon processor and Intel Fortran Compiler (ifc)?
> 
> Thanks,
> Melione.
> 
> 
> _______________________________________________
> Beowulf mailing list, Beowulf at beowulf.org
> To change your subscription (digest mode or unsubscribe) visit 
> http://www.beowulf.org/mailman/listinfo/beowulf

-- 
Craig Tierney (ctierney at hpti.com)
_______________________________________________
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit
http://www.beowulf.org/mailman/listinfo/beowulf

_______________________________________________
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf



More information about the Beowulf mailing list