Re: octave & octave-forge install instructions for Mac OS X 10.4.x

[Joe Koski]

on 7/1/05 6:48 PM, Marius Schamschula at address@hidden wrote:

> Joe,
> 
> I saw g95.sf.net mentioned on hpc.sf.net. However the note "Some
> reports suggest that this alternate g95 is a bit ahead in the
> implementation of F95 features, but produces poorly optimized
> executables." discouraged me from trying this compiler.
> 
Marius,

My experience is that g95 is that is has about the same speed as g77,
although I haven't done any extensive benchmarks. In a comparison with xlf,
with the use of some NIST FDS code examples, g95 ran at about 2/3 the speed
of xlf (both using one processor of my dual G5).

Apparently, the fastest Mac Fortran, IBM's xlf, is going away, a victim of
the Apple switch to Intel chips. Maybe Intel Fortran is waiting in the
wings.

Joe

> On Jul 1, 2005, at 7:20 PM, Joe Koski wrote:
> 
>> Although it is not official gcc material, g95
>> (http://g95.sourceforge.net/)
>> has been very reliable for me. When g77 seg-faulted on a computational
>> fluid
>> dynamics code that we change often, I tried g95, and it worked, and
>> enabled
>> me to deliver some results on time. So far, even though it claims to be
>> beta, g95 has performed reliably for me, and has compiled the
>> half-dozen old
>> Fortran 77 legacy code that I threw at it. They update the g95 Mac
>> binaries
>> often, unlike gfortran. It uses the same back end as gfortran. It may
>> be
>> worth a try.
>> 
>> Joe
>> 
> Marius
> --
> Marius Schamschula                               Webmaster
> 
>          The Huntsville Macintosh Users Group
>                      www.hmug.org
> 
> webmaster at hmug dot org    marius at schamschula dot com
> 
> 
> 
> -------------------------------------------------------------
> Octave is freely available under the terms of the GNU GPL.
> 
> Octave's home on the web:  http://www.octave.org
> How to fund new projects:  http://www.octave.org/funding.html
> Subscription information:  http://www.octave.org/archive.html
> -------------------------------------------------------------
> 




-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------