On Fri, 08 Aug 2003 09:47:08 -0700,
G. Hugh Song , in
<3f33a9d6$0$3931$b45e6eb0@senator-bedfellow.mit.edu> wrote:

+> Is it possible to run Linux on it to run FORTRAN jobs? I would not care
+> about Linux if their current OS-X is truly Unix-like.

Last time I looked, FreeBSD was unix-like. And Apple conveniently
provides the gcc suite of compilers.

James
--
Consulting Minister for Consultants, DNRC
I can please only one person per day. Today is not your day. Tomorrow
isn't looking good, either.
I am BOFH. Resistance is futile. Your network will be assimilated.

On Fri, 8 Aug 2003 19:13:46 +0000 (UTC),
Dave Seaman , in
wrote:

+> Apple's gcc suite does not currently include g77

WHAT? SON OF A #$&#*$#&$#

+> but you can install it yourself from fink.sf.net.

Ah, fink to the rescue. Can that use of the Altivec instruction set?
the web site doesn't say, but I'm thinking it might.

http://fink.sourceforge.net/pdb/package.php/g77

I have to download fink so I can put it on my Mom's iMac. She won't
know (or care) g77 from /dev/null, but I will...

James - long-time f77 hacker
--
Consulting Minister for Consultants, DNRC
I can please only one person per day. Today is not your day. Tomorrow
isn't looking good, either.
I am BOFH. Resistance is futile. Your network will be assimilated.

In comp.lang.fortran G. Hugh Song wrote:
: In the advertisement that one can find in Time magazine and many others,
: There is an impressive SPECFP2000rate result on a single CPU on a dual
: machine. (Why not two CPUS's together?)

I wouldn't call the Apple results impressive, except relative to
previous Macs, which had results so bad that they were never publicly
released by Apple.

Nonetheless, the results are good enough that you could use a Mac and
be very happy, especially if you like other aspects of the
machine. Neither Mac Fortran vendor (NAG or Absoft) has released a
G5-optimized compiler yet, although NAG has a press release saying
they will do so in the future.

Running Linux will on the Mac will have the advantage of giving you a
true 64-bit OS (unlike Mac OS 10.2.7 & 10.3), but it is not clear
whether there is a commercial Fortran compiler for 64-bit PowerPC for
Linux on machines not made by IBM. IBM has its own compiler for 64-bit
Linux, but presumably it is not supported on Macs.

If you want my opinion, for pure speed (with some attention to cost),
for 1 CPU the 3.2mhz 800FSB Pentium 4 using Windows or Linux with the
Intel compilers is the way to go. For 2 or 4 CPUs, the 64-bit Opteron
architecture running gcc 3.3 and PGI 5.0 Fortran 5.0 is the way to go.

--
------------------------
Jeremy T. Fox
jerfox@stanford.edu

Dave Seaman wrote:

> On 8 Aug 2003 19:47:23 GMT, I R A Darth Aggie wrote:
>
>>On Fri, 8 Aug 2003 19:13:46 +0000 (UTC),
>>Dave Seaman , in
>> wrote:
>
>
>>+> Apple's gcc suite does not currently include g77
>
>
>>WHAT? SON OF A #$&#*$#&$#
>
>
>>+> but you can install it yourself from fink.sf.net.
>
>
>>Ah, fink to the rescue. Can that use of the Altivec instruction set?
>>the web site doesn't say, but I'm thinking it might.
>
>
> The compiler accepts -maltivec, which I found out by using "g77
> --target-help" to list target-specific options. However, when I tried it
> on the single-precision whetstone benchmark, I didn't find that it made a
> noticeable difference.
>
>

If g77 is anything like gcc et al then enabling AltiVec doesn't actually
cause AltiVec-optimised code to be automatically generated, it just
enables the use of AltiVec extensions in your code (AltiVec data types
and primitives - see the AltiVec PIM and PEM manuals on motorola.com for
details).

Paul

"G. Hugh Song" wrote in message news:3f33a9d6$0$3931$b45e6eb0@senator-bedfellow.mit.edu...
> In the advertisement that one can find in Time magazine and many others,
> There is an impressive SPECFP2000rate result on a single CPU on a dual
> machine. (Why not two CPUS's together?)
>
> However, it seems that the result was never submitted to SPEC.org.
> I cannot find any row in SPEC.org's list. Also, the veritest link which
> www.apple.com/powermac provides is a not a kind direct link, either.
>
> Admittedly, my impression on Mac has been very negative. It has been
> like: their ad says one thing, the reality says another. What is the
> current situation?
>
> Seriously, has it become making sense to run FORTRAN jobs on Apple G5
> by now?
> Is it possible to run Linux on it to run FORTRAN jobs? I would not care
> about Linux if their current OS-X is truly Unix-like.
>
> Thanks.
>
> Hugh
>

Find the link to the g5 nasa test.

Found it
http://members.cox.net/craig.hunter/g5/

http://members.cox.net/craig.hunter/...A_G4_Study.pdf

Last year Apple were going to supply a few copies of the absoft compiler to the Physics department
at the university I'm at , but at the last minute decided not to. Didn't get told what the reason was.
Killed off what would have been a nice project for me to do.

Its unix like all right.

The under pinnings is darwin
http://developer.apple.com/darwin/

there is even a version you can run on a x86 pc.
Very similar to freebsd except uses the mach kernel.

You should have a read of
http://www.apple.com/macosx/pdfs/Mac...X_users_TB.pdf


Alex