comp.lang.ada
 help / color / mirror / Atom feed
From: Preben Randhol <randhol+abuse@pvv.org>
Subject: Re: comparing gnat/Ada95 and g77
Date: Thu, 14 Mar 2002 11:06:10 +0000 (UTC)
Date: 2002-03-14T11:06:10+00:00	[thread overview]
Message-ID: <slrna911dc.32l.randhol+abuse@kiuk0156.chembio.ntnu.no> (raw)
In-Reply-To: 3c9081f5$1@pull.gecm.com

On Thu, 14 Mar 2002 10:58:06 -0000, Martin Dowie wrote:
>>          x := x*0.5 + 1.0 + sin(x)*cos(x) + sin(x) + cos(x) +
>>                             sin(x)*sin(x) + cos(x)*cos(x);
> 
> Try changing this line to:
> 
>          Sin_X := Sin(X);
>          Cos_X := Cos(X);
>          X := X*0.5 + 1.0 + Sin_X*Cos_X + Sin_X + Cos_X +
>             Sin_X*Sin_X + Cos_X*Cos_X;

After removing the IO things from the program the exection time when 
from approx 19s to approx 5s.

The fortran went from approx 15s to approx 4s.

(note the gcc backends are different)

-- 
Preben Randhol         �For me, Ada95 puts back the joy in programming.�



  parent reply	other threads:[~2002-03-14 11:06 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-14  9:47 comparing gnat/Ada95 and g77 Reinert Korsnes
2002-03-14 10:37 ` John McCabe
2002-03-14 11:00   ` Preben Randhol
2002-03-15 10:44   ` Reinert Korsnes
2002-03-15 12:14     ` John McCabe
2002-03-15 17:53       ` Georg Bauhaus
2002-03-16 14:00     ` Gautier
2002-03-14 10:58 ` Martin Dowie
2002-03-14 11:04   ` chris.danx
2002-03-14 11:07     ` Bobby D. Bryant
2002-03-14 11:41     ` David C. Hoos, Sr.
2002-03-14 11:06   ` Preben Randhol [this message]
2002-03-14 16:43     ` Jeffrey Carter
2002-03-14 11:14 ` Gerald Kasner
2002-03-14 12:59   ` Gary Scott
2002-03-14 13:17     ` Jean-Marc Bourguet
2002-03-15  0:52       ` Gary Scott
2002-03-14 16:19     ` Dan Andreatta
2002-03-15  9:35       ` Gerald Kasner
2002-03-14 17:31   ` Toshitaka Kumano
2002-03-14 16:40 ` Jeffrey Carter
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox