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Re: gcc compile-time performance

On Saturday 18 May 2002 13:17, Toon Moene wrote:
> Robert Dewar wrote:
> > <<I can put this stronger: The very reason our numerical weather
> > prediction software is still written in Fortran 77 is due to the fact
> > that that way we can be assured of the collaboration of [the Weather
> > Institutes] of smaller European countries, where Universities can't
> > afford Real Unix Workstations.
> >
> > What exactly is a "real unix work station". Given that the best cost
> > performance on small scale unix platforms now comes from running
> > GNU/Linux on a cheap PC, I find that hard to understand.
> Well, duh !  The point is that noone trusts the proprietary compilers -
> even if they're `free' (i.e., gratis).
> People want a free (according to our - GNU - sense of free) supported
> Fortran 90/95 compiler before they switch.
Several organizations I have dealt with continue to maintain mostly 
g77-compatible source code, using only a few selected f90 features, if any, 
due to uncertainties in quality of implementation across multiple platforms, 
and the priority on portability.  At this time, gcc/g77 is, AFAIK, one of 
only 2 compiler families which support ia32 sse/sse2 code generation.
Tim Prince

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