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From: Gary Scott <Gary.L.Scott@lmtas.lmco.com>
Newsgroups: comp.lang.ada
Subject: Re: Numerical Computation and Ada95
Date: Thu, 10 May 2001 15:08:53 -0500
Organization: LM Aeronautics
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Date: 2001-05-10T15:08:53-05:00
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As an F95 programmer, I don't think that for most applications the
performance difference between these languages will be significantly
different if you limit the code to easily optimizable constructs. 
However, it is my impression that Fortran compiler vendors have
traditionally been much more obsessed with performance issues and I'm
certain that the standards committee designs nearly everything
obsessively with performance issues in mind (i.e. not "expressivity" of
language constructs).  I would expect that the average Fortran compiler
will be slightly faster than the average Ada or C or C++ compiler. 
Given that there are somewhere between 6 and 10 different commercial
Fortran vendors for x86 alone, it shouldn't be difficult to find one
that wins at any particular spec test suite routine on that platform.

N&J wrote:
> 
> Hi all,
> From what you said I undestand that nobody has ever compared Ada's timing
> performance with Fortran77/90/95, C and C++ in programs that require lots of
> arithmetic and logical operations (perhaps FFT). I think I will try to do it
> when I learn Ada95 better
> 
> Thanks for your help,
> John
> 
> P.S I am still a student and I work for myself that's why I am always
> looking for new things