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From: "Pat Rogers" <progers@classwide.com>
Subject: Re: Numerical Computation and Ada95
Date: Thu, 10 May 2001 07:23:56 -0500
Date: 2001-05-10T07:23:56-05:00	[thread overview]
Message-ID: <wLvK6.277$fN4.13588@nnrp1.sbc.net> (raw)
In-Reply-To: 9dc6io$a2g2@news.cis.okstate.edu

"David Starner" <dvdeug@x8b4e53cd.dhcp.okstate.edu> wrote in message
news:9dc6io$a2g2@news.cis.okstate.edu...
> On Wed, 9 May 2001 22:13:31 +0300, N&J <nikogian@hotmail.com> wrote:
> > I asked if Ada95 is better that Fortran90/95 and C++ for writing
programs
> > for numerical computation and the reply was that the Ada language
> > specification requires extensive
> > run-time checks which slows down the programs.
>
> There's always the question on whether you want fast programs or
> correct programs. (-: Most Ada compilers offer switches to turn off
> run-time checks, so there should be practically no difference
> between the speed of Fortran, C++ and Ada. (In practice, Ada seems
> to be slightly slower (10-20%) even with the checks turned off. This
> will of course vary widely depending on your program and enviroment.)

Which of the above two assertions do you believe?  You've said "practically
no difference" and "in practice, Ada seems to be slightly slower (10-20%)".
Absent any justification, that is spreading FUD, IMHO.  The trailing
qualifier (that it varies widely) doesn't undo the damage.

---
Patrick Rogers                       Consulting and Training in:
http://www.classwide.com          Real-Time/OO Languages
progers@classwide.com               Hard Deadline Schedulability Analysis
(281)648-3165                                 Software Fault Tolerance






  reply	other threads:[~2001-05-10 12:23 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-05-09 19:13 Numerical Computation and Ada95 N&J
2001-05-09 19:42 ` David Starner
2001-05-10 12:23   ` Pat Rogers [this message]
2001-05-10 13:51   ` Ted Dennison
2001-05-10 18:21   ` Jeffrey Carter
2001-05-09 19:43 ` Ted Dennison
2001-05-09 21:57 ` James Rogers
2001-05-10  0:41 ` Dr Adrian Wrigley
2001-05-10  5:45   ` N&J
2001-05-10  6:37     ` David Starner
2001-05-10  6:48     ` tmoran
2001-05-10 20:12       ` Gary Scott
2001-05-10 14:04     ` Ted Dennison
2001-05-11 14:15       ` Marin David Condic
2001-05-10 20:08     ` Gary Scott
2001-05-11 11:58       ` Larry Kilgallen
2001-05-11 11:31         ` Dan Nagle
2001-05-11 14:33         ` Gary Scott
2001-05-11  4:00     ` Lao Xiao Hai
2001-05-11 14:03     ` Marin David Condic
2001-05-10  8:00 ` Martin Dowie
2001-05-10 14:11   ` Ted Dennison
2001-05-10 15:46     ` Martin Dowie
2001-05-10 13:54 ` Martin Stift
2001-05-11  5:59   ` mike
2001-05-10 19:07 ` Laurent Guerby
2001-05-10 20:49 ` N&J
2001-05-11 16:28   ` Jean-Pierre Rosen
2001-05-11 18:28     ` Marin David Condic
2001-05-13 21:42   ` Gautier de Montmollin
2001-05-11  2:02 ` DuckE
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