RE: compaq fortran compilers

["Donsbach, Jeff" <Jeff Donsbach compaq com>]

The compiler is the same. It is the runtime library (or libraries) that
are different, most notably "libcpml" which has a "pre-ev6" and "ev6 and
later" version. If you use any of the Extended Math Library stuff
(libcxml), that also has two versions. The compilers produce
architecture oriented or specific code via the "-tune" and/or "-arch"
compiler switches.

Jeff Donsbach
Partner Engineering
Compaq Computer Corp


> -----Original Message-----
> From: Nelson Brito [mailto:ntbrito@fc.up.pt]
> Sent: Monday, October 15, 2001 8:09 AM
> To: RH alpha list
> Subject: compaq fortran compilers
> 
> 
> Hi,
> I have a cluster with 5 alpha ev56 and 5 ev67. I have 
> different versions of
> compaq fortran compilers instaled on both types of machines 
> (there's a release
> for ev5 and another for ev6) but i now that the release for 
> ev5 will work on ev6
> chip! My question is if any of you know if there's a big lost 
> in performance
> if i use the ev5 compilers on a ev6 machine. I'd like to 
> compile a program and run
> it on every machine!
> 
> Thank you.
> Regards, nelson
> 
> 
> 
> 
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